HEADER    OXIDOREDUCTASE                          06-DEC-04   2BFB              
TITLE     REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID          
TITLE    2 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 2-OXOISOVALERATE DEHYDROGENASE ALPHA SUBUNIT;              
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: RESIDUES 46-445;                                           
COMPND   5 SYNONYM: BRANCHED-CHAIN ALPHA-KETO ACID DEHYDROGENASE E1 COMPONENT   
COMPND   6 ALPHA CHAIN, BCKDH E1-ALPHA, BCKDE1A;                                
COMPND   7 EC: 1.2.4.4;                                                         
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MUTATION: YES;                                                       
COMPND  10 MOL_ID: 2;                                                           
COMPND  11 MOLECULE: 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT;               
COMPND  12 CHAIN: B;                                                            
COMPND  13 FRAGMENT: RESIDUES 51-392;                                           
COMPND  14 SYNONYM: BRANCHED-CHAIN ALPHA-KETO ACID DEHYDROGENASE E1 COMPONENT   
COMPND  15 BETA CHAIN, BCKDH E1-BETA;                                           
COMPND  16 EC: 1.2.4.4;                                                         
COMPND  17 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL-21 CELLS WITH OVEREXPRESSING GROEL AND  
SOURCE   8 GROES;                                                               
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_VECTOR: PTRCHISB (INVITROGEN);                     
SOURCE  11 EXPRESSION_SYSTEM_PLASMID: PTRC-ALPHA-BETAHIS;                       
SOURCE  12 MOL_ID: 2;                                                           
SOURCE  13 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  14 ORGANISM_COMMON: HUMAN;                                              
SOURCE  15 ORGANISM_TAXID: 9606;                                                
SOURCE  16 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  17 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  18 EXPRESSION_SYSTEM_STRAIN: BL-21 CELLS WITH OVEREXPRESSING GROEL AND  
SOURCE  19 GROES;                                                               
SOURCE  20 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  21 EXPRESSION_SYSTEM_VECTOR: PTRCHISB (INVITROGEN);                     
SOURCE  22 EXPRESSION_SYSTEM_PLASMID: PTRC-ALPHA-BETAHIS                        
KEYWDS    OXIDOREDUCTASE, MULTI-ENZYME COMPLEX, ACYLATION, OXIDATIVE            
KEYWDS   2 DECARBOXYLATION, MAPLE SYRUP URINE DISEASE, THIAMINE DIPHOSPHATE,    
KEYWDS   3 PHOSPHORYLATION                                                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.MACHIUS,R.M.WYNN,J.L.CHUANG,D.R.TOMCHICK,C.A.BRAUTIGAM,D.T.CHUANG   
REVDAT   7   13-DEC-23 2BFB    1       REMARK                                   
REVDAT   6   04-AUG-21 2BFB    1       COMPND HET    HETNAM FORMUL              
REVDAT   6 2                   1       LINK   SITE   ATOM                       
REVDAT   5   08-MAY-19 2BFB    1       REMARK                                   
REVDAT   4   06-MAR-19 2BFB    1       REMARK                                   
REVDAT   3   13-JUL-11 2BFB    1       VERSN                                    
REVDAT   2   24-FEB-09 2BFB    1       VERSN                                    
REVDAT   1   16-FEB-06 2BFB    0                                                
JRNL        AUTH   M.MACHIUS,R.M.WYNN,J.L.CHUANG,D.R.TOMCHICK,C.A.BRAUTIGAM,    
JRNL        AUTH 2 D.T.CHUANG                                                   
JRNL        TITL   A VERSATILE CONFORMATIONAL SWITCH REGULATES REACTIVITY IN    
JRNL        TITL 2 HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE.           
JRNL        REF    STRUCTURE                     V.  14   287 2006              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   16472748                                                     
JRNL        DOI    10.1016/J.STR.2005.10.009                                    
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   J.LI,R.M.WYNN,M.MACHIUS,J.L.CHUANG,S.KARTHIKEYAN,            
REMARK   1  AUTH 2 D.R.TOMCHICK,D.T.CHUANG                                      
REMARK   1  TITL   CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION   
REMARK   1  TITL 2 LOOP CONFORMATION IN THE BCKD MACHINE                        
REMARK   1  REF    J.BIOL.CHEM.                  V. 279 32968 2004              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1  PMID   15166214                                                     
REMARK   1  DOI    10.1074/JBC.M403611200                                       
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   R.WYNN,M.MACHIUS,J.CHUANG,J.LI,D.TOMCHICK,D.CHUANG           
REMARK   1  TITL   ROLES OF HIS291-ALPHA AND HIS146-BETA IN THE REDUCTIVE       
REMARK   1  TITL 2 ACYLATION REACTION CATALYZED BY HUMAN BRANCHED-CHAIN         
REMARK   1  TITL 3 ALPHA-KETOACID DEHYDROGENASE: REFINED PHOSPHORYLATION LOOP   
REMARK   1  TITL 4 STRUCTURE IN THE ACTIVE SITE                                 
REMARK   1  REF    J.BIOL.CHEM.                  V. 278 43402 2003              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1  PMID   12902323                                                     
REMARK   1  DOI    10.1074/JBC.M306204200                                       
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   R.M.WYNN,R.HO,J.L.CHUANG,D.T.CHUANG                          
REMARK   1  TITL   ROLES OF ACTIVE SITE AND NOVEL K+ ION-BINDING SITE RESIDUES  
REMARK   1  TITL 2 IN HUMAN MITOCHONDRIAL BRANCHED-CHAIN ALPHA-KETOACID         
REMARK   1  TITL 3 DECARBOXYLASE/DEHYDROGENASE                                  
REMARK   1  REF    J.BIOL.CHEM.                  V. 276  4168 2001              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1  PMID   11069910                                                     
REMARK   1  DOI    10.1074/JBC.M008038200                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.77 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0003                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.77                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 81272                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.145                           
REMARK   3   R VALUE            (WORKING SET) : 0.145                           
REMARK   3   FREE R VALUE                     : 0.184                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 1.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1455                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.77                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.81                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 5966                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2190                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 104                          
REMARK   3   BIN FREE R VALUE                    : 0.2700                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 5523                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 45                                      
REMARK   3   SOLVENT ATOMS            : 644                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : LIKELY RESIDUAL                                     
REMARK   3   FROM WILSON PLOT           (A**2) : 18.88                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 17.05                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.44000                                              
REMARK   3    B22 (A**2) : 0.44000                                              
REMARK   3    B33 (A**2) : -0.66000                                             
REMARK   3    B12 (A**2) : 0.22000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.088         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.093         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.060         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.543         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.971                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.953                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  6035 ; 0.019 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  8232 ; 1.672 ; 1.943       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   766 ; 5.792 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   286 ;34.248 ;23.427       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   996 ;14.150 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    46 ;17.679 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   864 ; 0.131 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4783 ; 0.009 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  3214 ; 0.217 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  4269 ; 0.312 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   608 ; 0.151 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):   223 ; 0.186 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    51 ; 0.207 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  3696 ; 0.954 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  6010 ; 1.657 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2373 ; 2.917 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  2222 ; 4.603 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 5                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     6        A    30                          
REMARK   3    ORIGIN FOR THE GROUP (A):  48.7820  -6.2200  32.0200              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   -.0419 T22:   -.0043                                     
REMARK   3      T33:    .0480 T12:    .0008                                     
REMARK   3      T13:    .0297 T23:    .0511                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:    .8069 L22:    .7810                                     
REMARK   3      L33:   2.0005 L12:    .2772                                     
REMARK   3      L13:   -.4668 L23:   -.2773                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:    .0098 S12:   -.0983 S13:    .1023                       
REMARK   3      S21:    .0947 S22:    .0953 S23:    .4203                       
REMARK   3      S31:   -.0842 S32:   -.0697 S33:   -.1051                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A    31        A   355                          
REMARK   3    ORIGIN FOR THE GROUP (A):  65.2210  16.6290   5.9690              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   -.0026 T22:   -.0373                                     
REMARK   3      T33:   -.0387 T12:    .0081                                     
REMARK   3      T13:   -.0106 T23:    .0100                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:    .6609 L22:    .3969                                     
REMARK   3      L33:    .6204 L12:    .0211                                     
REMARK   3      L13:   -.0511 L23:   -.2394                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:    .0032 S12:    .1304 S13:    .0421                       
REMARK   3      S21:   -.0583 S22:    .0458 S23:    .0570                       
REMARK   3      S31:   -.0960 S32:   -.0585 S33:   -.0491                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A   356        A   400                          
REMARK   3    ORIGIN FOR THE GROUP (A): 101.7930  18.5310   6.7440              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   -.0201 T22:    .0518                                     
REMARK   3      T33:   -.0012 T12:   -.0646                                     
REMARK   3      T13:    .0286 T23:    .0406                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.4063 L22:   1.1575                                     
REMARK   3      L33:    .0018 L12:   -.7408                                     
REMARK   3      L13:    .0195 L23:    .0236                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:    .0234 S12:    .1743 S13:    .1792                       
REMARK   3      S21:   -.1463 S22:   -.0680 S23:   -.1915                       
REMARK   3      S31:   -.1456 S32:    .2303 S33:    .0446                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 4                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B    14        B   191                          
REMARK   3    ORIGIN FOR THE GROUP (A):  84.6990  12.4810  34.9090              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:    .0089 T22:   -.0290                                     
REMARK   3      T33:   -.0364 T12:   -.0234                                     
REMARK   3      T13:   -.0086 T23:   -.0151                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:    .2810 L22:    .3036                                     
REMARK   3      L33:    .5157 L12:    .0224                                     
REMARK   3      L13:    .0057 L23:   -.0744                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:    .0181 S12:   -.0487 S13:    .0472                       
REMARK   3      S21:    .0888 S22:   -.0178 S23:   -.0293                       
REMARK   3      S31:   -.1078 S32:    .0948 S33:   -.0003                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 5                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B   192        B   342                          
REMARK   3    ORIGIN FOR THE GROUP (A): 107.1090   3.7840  37.5170              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   -.0733 T22:    .0633                                     
REMARK   3      T33:   -.0308 T12:   -.0280                                     
REMARK   3      T13:   -.0477 T23:    .0070                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:    .4912 L22:    .7202                                     
REMARK   3      L33:    .6737 L12:    .0588                                     
REMARK   3      L13:   -.0123 L23:   -.0783                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:    .0066 S12:   -.0787 S13:   -.0156                       
REMARK   3      S21:    .1263 S22:   -.0383 S23:   -.1982                       
REMARK   3      S31:   -.0493 S32:    .2648 S33:    .0318                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS. DISORDERED REGIONS WERE MODELED STEREOCHEMICALLY. THE    
REMARK   3  SUBUNIT BINDING DOMAIN (SBD) USED IN THE CRYSTALLIZATION            
REMARK   3  PROCEDURE WAS NOT INCLUDED IN THE MODEL, ALTHOUGH ELECTRON          
REMARK   3  DENSITY FOR IT WAS PRESENT. THE SBD BINDS NEAR A                    
REMARK   3  CRYSTALLOGRAPHIC TWO-FOLD AXIS, LEADING TO OVERLAPPED AND           
REMARK   3  AVERAGED ELECTRON DENSITY. THE QUALITY OF THE ELECTRON DENSITY      
REMARK   3  DID NOT ALLOW UNAMBIGUOUS TRACING OF THIS PEPTIDE.                  
REMARK   4                                                                      
REMARK   4 2BFB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 06-DEC-04.                  
REMARK 100 THE DEPOSITION ID IS D_1290021880.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 12-APR-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 5.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 19-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00691                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : CUSTOM                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 82758                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.770                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 26.770                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY                : 6.500                              
REMARK 200  R MERGE                    (I) : 0.09000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 19.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.77                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.80                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.40                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.74000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.000                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: PDB ENTRY 1OLS                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.40                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: CRYSTALS WERE GROWN AT 22C VIA THE       
REMARK 280  VAPOR DIFFUSION METHOD IN COMPLEX WITH A 40 AMINO ACID PEPTIDE      
REMARK 280  DERIVED FROM THE SUBUNIT BINDING DOMAIN (SBD) OF THE E2             
REMARK 280  COMPONENT OF BRANCHED CHAIN ALPHA-KETOACID DEHDROGENASE. THIS       
REMARK 280  COMPLEX WAS FORMED BY MIXING N-TERMINALLY HIS6-TAGGED PROTEIN       
REMARK 280  WITH C-TERMINALLY HIS6-TAGGED SBD IN 50 MM NA-HEPES, PH 7.5, 150    
REMARK 280  MM KCL, 20 MM DTT AND 5% (V/V) GLYCEROL AT A MOLAR RATIO OF 1:4.    
REMARK 280  CRYSTALS OF THE COMPLEX (20 MG/ML) WERE OBTAINED BY MIXING 3        
REMARK 280  MICROLITERS OF PROTEIN WITH 3 MICROLITERS OF CRYSTALLIZATION        
REMARK 280  SOLUTION (10% (V/V) POLYETHYLENE GLYCOL 4000, 10% (V/V) MPD AND     
REMARK 280  0.1M SODIUM CITRATE, PH 5.8) WITH 1 ML OF CRYSTALLIZATION           
REMARK 280  SOLUTION IN THE RESERVOIR. MANGANESE IONS WERE USED INSTEAD OF      
REMARK 280  MAGNESIUM REQUIRED FOR THE BINDING OF THIAMIN DIPHOSPHATE TO THE    
REMARK 280  ENZYME. THE PRESENCE OF MANGANESE IONS IN THE CRYSTALS RESULTED     
REMARK 280  IN IMPROVED X-RAY DIFFRACTION QUALITIES WITHOUT AFFECTING THE       
REMARK 280  CATALYTIC PROPERTIES. CRYSTALS WERE CRYO-PROTECTED BY STEP-WISE     
REMARK 280  TRANSFER INTO CRYO-BUFFER (CRYSTALLIZATION SOLUTION CONTAINING 5-   
REMARK 280  10%(V/V) GLYCEROL)., PH 5.50, TEMPERATURE 295K                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+2/3                                           
REMARK 290       6555   -X,-X+Y,-Z+1/3                                          
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       23.12400            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       46.24800            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       46.24800            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       23.12400            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 28440 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 43080 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -213.9 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       46.24800            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH B2106  LIES ON A SPECIAL POSITION.                          
REMARK 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 ENGINEERED RESIDUE CHAIN A, GLN 157 ALA                              
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     SER A     1                                                      
REMARK 465     SER A     2                                                      
REMARK 465     LEU A     3                                                      
REMARK 465     ASP A     4                                                      
REMARK 465     ASP A     5                                                      
REMARK 465     ILE A   288                                                      
REMARK 465     GLY A   289                                                      
REMARK 465     HIS A   290                                                      
REMARK 465     ALA A   291                                                      
REMARK 465     SER A   292                                                      
REMARK 465     THR A   293                                                      
REMARK 465     SER A   294                                                      
REMARK 465     ASP A   295                                                      
REMARK 465     ASP A   296                                                      
REMARK 465     SER A   297                                                      
REMARK 465     SER A   298                                                      
REMARK 465     ALA A   299                                                      
REMARK 465     PHE A   300                                                      
REMARK 465     ARG A   301                                                      
REMARK 465     SER A   302                                                      
REMARK 465     VAL A   303                                                      
REMARK 465     ASP A   304                                                      
REMARK 465     GLU A   305                                                      
REMARK 465     VAL A   306                                                      
REMARK 465     ASN A   307                                                      
REMARK 465     TYR A   308                                                      
REMARK 465     TRP A   309                                                      
REMARK 465     ASP A   310                                                      
REMARK 465     LYS A   311                                                      
REMARK 465     GLN A   312                                                      
REMARK 465     VAL B     1                                                      
REMARK 465     ALA B     2                                                      
REMARK 465     HIS B     3                                                      
REMARK 465     PHE B     4                                                      
REMARK 465     THR B     5                                                      
REMARK 465     PHE B     6                                                      
REMARK 465     GLN B     7                                                      
REMARK 465     PRO B     8                                                      
REMARK 465     ASP B     9                                                      
REMARK 465     PRO B    10                                                      
REMARK 465     GLU B    11                                                      
REMARK 465     PRO B    12                                                      
REMARK 465     ARG B    13                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A  2248     O    HOH A  2248     5555     1.94            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG B  61   NE  -  CZ  -  NH1 ANGL. DEV. =   3.0 DEGREES          
REMARK 500    ARG B 133   NE  -  CZ  -  NH1 ANGL. DEV. =  -3.3 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ALA A 112     -144.41   -134.70                                   
REMARK 500    PRO A 147      155.34    -49.55                                   
REMARK 500    HIS A 149       70.56   -104.14                                   
REMARK 500    ALA A 165       -9.19     73.79                                   
REMARK 500    ILE A 226     -110.96     53.56                                   
REMARK 500    CYS B  75       96.88   -160.86                                   
REMARK 500    GLU B 113      -71.45   -111.29                                   
REMARK 500    VAL B 139       17.73   -142.28                                   
REMARK 500    HIS B 141       18.50   -151.10                                   
REMARK 500    ALA B 143     -144.33     56.59                                   
REMARK 500    LYS B 182       39.74    -89.38                                   
REMARK 500    ALA B 196     -161.63    -70.63                                   
REMARK 500    ARG B 255      -60.66     66.64                                   
REMARK 500    HIS B 319      -79.11    -71.99                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH B2034        DISTANCE =  6.28 ANGSTROMS                       
REMARK 525    HOH B2121        DISTANCE =  6.93 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A1401   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER A 161   O                                                      
REMARK 620 2 SER A 161   OG   64.4                                              
REMARK 620 3 PRO A 163   O    89.3  93.3                                        
REMARK 620 4 THR A 166   OG1 128.5  73.5  64.3                                  
REMARK 620 5 GLN A 167   OE1 145.8 144.0 103.3  85.2                            
REMARK 620 6 HOH A2132   O    76.8  83.9 165.6 127.7  86.9                      
REMARK 620 7 HOH A2198   O    76.1 140.4  86.2 138.4  73.2  87.0                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MN A1402  MN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 193   OE1                                                    
REMARK 620 2 ASN A 222   OD1  88.7                                              
REMARK 620 3 TYR A 224   O   116.2  79.0                                        
REMARK 620 4 TPP A1404   O1A  89.6 178.0 102.8                                  
REMARK 620 5 TPP A1404   O2B 159.7  91.6  83.7  89.6                            
REMARK 620 6 HOH A2360   O    76.7  82.7 157.1  95.8  83.2                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K B1343   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY B 128   O                                                      
REMARK 620 2 LEU B 130   O    83.9                                              
REMARK 620 3 THR B 131   OG1 136.3  63.4                                        
REMARK 620 4 CYS B 178   O   150.8 122.2  60.7                                  
REMARK 620 5 ASP B 181   O    68.2 152.0 141.0  85.5                            
REMARK 620 6 ASN B 183   O    71.2  84.2 128.1 120.4  84.5                      
REMARK 620 7 HOH B2135   O    92.4  74.3  52.8  83.5 108.2 154.3                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A1401                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MN A1402                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A1403                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A1505                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B1343                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TDP A1404                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MRD B1345                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL B1344                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1DTW   RELATED DB: PDB                                   
REMARK 900 HUMAN BRANCHED-CHAIN ALPHA-KETO ACID DEHYDROGENASE                   
REMARK 900 RELATED ID: 1OLS   RELATED DB: PDB                                   
REMARK 900 ROLES OF HIS291-ALPHA AND HIS146-BETA' IN THE REDUCTIVE ACYLATION    
REMARK 900 REACTION CATALYZED BY HUMAN BRANCHED-CHAIN ALPHA-KETOACID            
REMARK 900 DEHYDROGENASE                                                        
REMARK 900 RELATED ID: 1OLU   RELATED DB: PDB                                   
REMARK 900 ROLES OF HIS291-ALPHA AND HIS146-BETA' IN THE REDUCTIVE ACYLATION    
REMARK 900 REACTION CATALYZED BY HUMAN BRANCHED-CHAIN ALPHA-KETOACID            
REMARK 900 DEHYDROGENASE                                                        
REMARK 900 RELATED ID: 1OLX   RELATED DB: PDB                                   
REMARK 900 ROLES OF HIS291-ALPHA AND HIS146-BETA' IN THE REDUCTIVE ACYLATION    
REMARK 900 REACTION CATALYZED BY HUMAN BRANCHED-CHAIN ALPHA-KETOACID            
REMARK 900 DEHYDROGENASE                                                        
REMARK 900 RELATED ID: 1U5B   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-    
REMARK 900 KETOACID DEHYDROGENASE                                               
REMARK 900 RELATED ID: 1V11   RELATED DB: PDB                                   
REMARK 900 CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP      
REMARK 900 CONFORMATION IN THE BCKD MACHINE                                     
REMARK 900 RELATED ID: 1V16   RELATED DB: PDB                                   
REMARK 900 CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP      
REMARK 900 CONFORMATION IN THE BCKD MACHINE                                     
REMARK 900 RELATED ID: 1V1M   RELATED DB: PDB                                   
REMARK 900 CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP      
REMARK 900 CONFORMATION IN THE BCKD MACHINE                                     
REMARK 900 RELATED ID: 1V1R   RELATED DB: PDB                                   
REMARK 900 CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP      
REMARK 900 CONFORMATION IN THE BCKD MACHINE                                     
REMARK 900 RELATED ID: 1WCI   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
REMARK 900 RELATED ID: 1X7W   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-    
REMARK 900 KETOACID DEHYDROGENASE                                               
REMARK 900 RELATED ID: 1X7X   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-    
REMARK 900 KETOACID DEHYDROGENASE                                               
REMARK 900 RELATED ID: 1X7Y   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-    
REMARK 900 KETOACID DEHYDROGENASE                                               
REMARK 900 RELATED ID: 1X7Z   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-    
REMARK 900 KETOACID DEHYDROGENASE                                               
REMARK 900 RELATED ID: 1X80   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-    
REMARK 900 KETOACID DEHYDROGENASE                                               
REMARK 900 RELATED ID: 2BEU   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
REMARK 900 RELATED ID: 2BEV   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
REMARK 900 RELATED ID: 2BEW   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
REMARK 900 RELATED ID: 2BFC   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
REMARK 900 RELATED ID: 2BFD   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
REMARK 900 RELATED ID: 2BFE   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
REMARK 900 RELATED ID: 2BFF   RELATED DB: PDB                                   
REMARK 900 REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID         
REMARK 900 DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH                        
DBREF  2BFB A    1   400  UNP    P12694   ODBA_HUMAN      46    445             
DBREF  2BFB B    1   342  UNP    P21953   ODBB_HUMAN      51    392             
SEQADV 2BFB ALA A  112  UNP  P12694    GLN   157 ENGINEERED MUTATION            
SEQADV 2BFB ALA A  291  UNP  P12694    HIS   336 CONFLICT                       
SEQADV 2BFB PHE A  300  UNP  P12694    TYR   345 CONFLICT                       
SEQRES   1 A  400  SER SER LEU ASP ASP LYS PRO GLN PHE PRO GLY ALA SER          
SEQRES   2 A  400  ALA GLU PHE ILE ASP LYS LEU GLU PHE ILE GLN PRO ASN          
SEQRES   3 A  400  VAL ILE SER GLY ILE PRO ILE TYR ARG VAL MET ASP ARG          
SEQRES   4 A  400  GLN GLY GLN ILE ILE ASN PRO SER GLU ASP PRO HIS LEU          
SEQRES   5 A  400  PRO LYS GLU LYS VAL LEU LYS LEU TYR LYS SER MET THR          
SEQRES   6 A  400  LEU LEU ASN THR MET ASP ARG ILE LEU TYR GLU SER GLN          
SEQRES   7 A  400  ARG GLN GLY ARG ILE SER PHE TYR MET THR ASN TYR GLY          
SEQRES   8 A  400  GLU GLU GLY THR HIS VAL GLY SER ALA ALA ALA LEU ASP          
SEQRES   9 A  400  ASN THR ASP LEU VAL PHE GLY ALA TYR ARG GLU ALA GLY          
SEQRES  10 A  400  VAL LEU MET TYR ARG ASP TYR PRO LEU GLU LEU PHE MET          
SEQRES  11 A  400  ALA GLN CYS TYR GLY ASN ILE SER ASP LEU GLY LYS GLY          
SEQRES  12 A  400  ARG GLN MET PRO VAL HIS TYR GLY CYS LYS GLU ARG HIS          
SEQRES  13 A  400  PHE VAL THR ILE SER SER PRO LEU ALA THR GLN ILE PRO          
SEQRES  14 A  400  GLN ALA VAL GLY ALA ALA TYR ALA ALA LYS ARG ALA ASN          
SEQRES  15 A  400  ALA ASN ARG VAL VAL ILE CYS TYR PHE GLY GLU GLY ALA          
SEQRES  16 A  400  ALA SER GLU GLY ASP ALA HIS ALA GLY PHE ASN PHE ALA          
SEQRES  17 A  400  ALA THR LEU GLU CYS PRO ILE ILE PHE PHE CYS ARG ASN          
SEQRES  18 A  400  ASN GLY TYR ALA ILE SER THR PRO THR SER GLU GLN TYR          
SEQRES  19 A  400  ARG GLY ASP GLY ILE ALA ALA ARG GLY PRO GLY TYR GLY          
SEQRES  20 A  400  ILE MET SER ILE ARG VAL ASP GLY ASN ASP VAL PHE ALA          
SEQRES  21 A  400  VAL TYR ASN ALA THR LYS GLU ALA ARG ARG ARG ALA VAL          
SEQRES  22 A  400  ALA GLU ASN GLN PRO PHE LEU ILE GLU ALA MET THR TYR          
SEQRES  23 A  400  ARG ILE GLY HIS ALA SER THR SER ASP ASP SER SER ALA          
SEQRES  24 A  400  PHE ARG SER VAL ASP GLU VAL ASN TYR TRP ASP LYS GLN          
SEQRES  25 A  400  ASP HIS PRO ILE SER ARG LEU ARG HIS TYR LEU LEU SER          
SEQRES  26 A  400  GLN GLY TRP TRP ASP GLU GLU GLN GLU LYS ALA TRP ARG          
SEQRES  27 A  400  LYS GLN SER ARG ARG LYS VAL MET GLU ALA PHE GLU GLN          
SEQRES  28 A  400  ALA GLU ARG LYS PRO LYS PRO ASN PRO ASN LEU LEU PHE          
SEQRES  29 A  400  SER ASP VAL TYR GLN GLU MET PRO ALA GLN LEU ARG LYS          
SEQRES  30 A  400  GLN GLN GLU SER LEU ALA ARG HIS LEU GLN THR TYR GLY          
SEQRES  31 A  400  GLU HIS TYR PRO LEU ASP HIS PHE ASP LYS                      
SEQRES   1 B  342  VAL ALA HIS PHE THR PHE GLN PRO ASP PRO GLU PRO ARG          
SEQRES   2 B  342  GLU TYR GLY GLN THR GLN LYS MET ASN LEU PHE GLN SER          
SEQRES   3 B  342  VAL THR SER ALA LEU ASP ASN SER LEU ALA LYS ASP PRO          
SEQRES   4 B  342  THR ALA VAL ILE PHE GLY GLU ASP VAL ALA PHE GLY GLY          
SEQRES   5 B  342  VAL PHE ARG CYS THR VAL GLY LEU ARG ASP LYS TYR GLY          
SEQRES   6 B  342  LYS ASP ARG VAL PHE ASN THR PRO LEU CYS GLU GLN GLY          
SEQRES   7 B  342  ILE VAL GLY PHE GLY ILE GLY ILE ALA VAL THR GLY ALA          
SEQRES   8 B  342  THR ALA ILE ALA GLU ILE GLN PHE ALA ASP TYR ILE PHE          
SEQRES   9 B  342  PRO ALA PHE ASP GLN ILE VAL ASN GLU ALA ALA LYS TYR          
SEQRES  10 B  342  ARG TYR ARG SER GLY ASP LEU PHE ASN CYS GLY SER LEU          
SEQRES  11 B  342  THR ILE ARG SER PRO TRP GLY CYS VAL GLY HIS GLY ALA          
SEQRES  12 B  342  LEU TYR HIS SER GLN SER PRO GLU ALA PHE PHE ALA HIS          
SEQRES  13 B  342  CYS PRO GLY ILE LYS VAL VAL ILE PRO ARG SER PRO PHE          
SEQRES  14 B  342  GLN ALA LYS GLY LEU LEU LEU SER CYS ILE GLU ASP LYS          
SEQRES  15 B  342  ASN PRO CYS ILE PHE PHE GLU PRO LYS ILE LEU TYR ARG          
SEQRES  16 B  342  ALA ALA ALA GLU GLU VAL PRO ILE GLU PRO TYR ASN ILE          
SEQRES  17 B  342  PRO LEU SER GLN ALA GLU VAL ILE GLN GLU GLY SER ASP          
SEQRES  18 B  342  VAL THR LEU VAL ALA TRP GLY THR GLN VAL HIS VAL ILE          
SEQRES  19 B  342  ARG GLU VAL ALA SER MET ALA LYS GLU LYS LEU GLY VAL          
SEQRES  20 B  342  SER CYS GLU VAL ILE ASP LEU ARG THR ILE ILE PRO TRP          
SEQRES  21 B  342  ASP VAL ASP THR ILE CYS LYS SER VAL ILE LYS THR GLY          
SEQRES  22 B  342  ARG LEU LEU ILE SER HIS GLU ALA PRO LEU THR GLY GLY          
SEQRES  23 B  342  PHE ALA SER GLU ILE SER SER THR VAL GLN GLU GLU CYS          
SEQRES  24 B  342  PHE LEU ASN LEU GLU ALA PRO ILE SER ARG VAL CYS GLY          
SEQRES  25 B  342  TYR ASP THR PRO PHE PRO HIS ILE PHE GLU PRO PHE TYR          
SEQRES  26 B  342  ILE PRO ASP LYS TRP LYS CYS TYR ASP ALA LEU ARG LYS          
SEQRES  27 B  342  MET ILE ASN TYR                                              
HET      K  A1401       1                                                       
HET     MN  A1402       1                                                       
HET     CL  A1403       1                                                       
HET    TPP  A1404      26                                                       
HET     CL  A1505       1                                                       
HET      K  B1343       1                                                       
HET    GOL  B1344       6                                                       
HET    MRD  B1345       8                                                       
HETNAM       K POTASSIUM ION                                                    
HETNAM      MN MANGANESE (II) ION                                               
HETNAM      CL CHLORIDE ION                                                     
HETNAM     TPP THIAMINE DIPHOSPHATE                                             
HETNAM     GOL GLYCEROL                                                         
HETNAM     MRD (4R)-2-METHYLPENTANE-2,4-DIOL                                    
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   3    K    2(K 1+)                                                      
FORMUL   4   MN    MN 2+                                                        
FORMUL   5   CL    2(CL 1-)                                                     
FORMUL   6  TPP    C12 H19 N4 O7 P2 S 1+                                        
FORMUL   9  GOL    C3 H8 O3                                                     
FORMUL  10  MRD    C6 H14 O2                                                    
FORMUL  11  HOH   *644(H2 O)                                                    
HELIX    1   1 ASN A   45  ASP A   49  5                                   5    
HELIX    2   2 PRO A   53  GLN A   80  1                                  28    
HELIX    3   3 GLU A   92  LEU A  103  1                                  12    
HELIX    4   4 GLU A  115  ARG A  122  1                                   8    
HELIX    5   5 PRO A  125  GLY A  135  1                                  11    
HELIX    6   6 THR A  166  ASN A  182  1                                  17    
HELIX    7   7 GLY A  194  SER A  197  5                                   4    
HELIX    8   8 GLU A  198  LEU A  211  1                                  14    
HELIX    9   9 SER A  231  GLN A  233  5                                   3    
HELIX   10  10 ILE A  239  GLY A  247  5                                   9    
HELIX   11  11 ASP A  257  ASN A  276  1                                  20    
HELIX   12  12 HIS A  314  GLY A  327  1                                  14    
HELIX   13  13 ASP A  330  LYS A  355  1                                  26    
HELIX   14  14 ASN A  359  PHE A  364  5                                   6    
HELIX   15  15 PRO A  372  GLY A  390  1                                  19    
HELIX   16  16 GLU A  391  TYR A  393  5                                   3    
HELIX   17  17 PRO A  394  HIS A  397  5                                   4    
HELIX   18  18 ASN B   22  ASP B   38  1                                  17    
HELIX   19  19 GLY B   59  GLY B   65  1                                   7    
HELIX   20  20 CYS B   75  THR B   89  1                                  15    
HELIX   21  21 PHE B   99  ILE B  103  5                                   5    
HELIX   22  22 ILE B  103  PRO B  105  5                                   3    
HELIX   23  23 ALA B  106  ASN B  112  1                                   7    
HELIX   24  24 GLU B  113  ALA B  115  5                                   3    
HELIX   25  25 LYS B  116  SER B  121  1                                   6    
HELIX   26  26 GLY B  142  HIS B  146  5                                   5    
HELIX   27  27 PRO B  150  HIS B  156  1                                   7    
HELIX   28  28 SER B  167  ASP B  181  1                                  15    
HELIX   29  29 ILE B  192  TYR B  194  5                                   3    
HELIX   30  30 THR B  229  GLY B  246  1                                  18    
HELIX   31  31 ASP B  261  GLY B  273  1                                  13    
HELIX   32  32 GLY B  286  PHE B  300  1                                  15    
HELIX   33  33 LEU B  301  LEU B  303  5                                   3    
HELIX   34  34 PHE B  321  ILE B  326  1                                   6    
HELIX   35  35 ASP B  328  ASN B  341  1                                  14    
SHEET    1  AA 6 ILE A  33  TYR A  34  0                                        
SHEET    2  AA 6 MET A 249  ASP A 254  1  O  ARG A 252   N  TYR A  34           
SHEET    3  AA 6 PHE A 279  MET A 284  1  O  LEU A 280   N  ILE A 251           
SHEET    4  AA 6 ILE A 215  ASN A 221  1  O  ILE A 215   N  PHE A 279           
SHEET    5  AA 6 VAL A 187  GLY A 192  1  O  VAL A 187   N  ILE A 216           
SHEET    6  AA 6 LEU A 108  PHE A 110  1  O  LEU A 108   N  ILE A 188           
SHEET    1  AB 2 TYR A 224  ALA A 225  0                                        
SHEET    2  AB 2 THR A 228  PRO A 229 -1  O  THR A 228   N  ALA A 225           
SHEET    1  BA 2 THR B  18  MET B  21  0                                        
SHEET    2  BA 2 GLU B 199  PRO B 202 -1  O  GLU B 199   N  MET B  21           
SHEET    1  BB 7 VAL B  69  ASN B  71  0                                        
SHEET    2  BB 7 VAL B  42  GLY B  45  1  O  ILE B  43   N  PHE B  70           
SHEET    3  BB 7 ALA B  93  GLU B  96  1  O  ILE B  94   N  PHE B  44           
SHEET    4  BB 7 LEU B 130  TRP B 136  1  O  THR B 131   N  ALA B  95           
SHEET    5  BB 7 CYS B 185  PRO B 190  1  O  CYS B 185   N  ILE B 132           
SHEET    6  BB 7 LYS B 161  VAL B 163  1  O  LYS B 161   N  ILE B 186           
SHEET    7  BB 7 THR B 256  ILE B 258 -1  N  ILE B 257   O  VAL B 162           
SHEET    1  BC 5 GLU B 214  GLN B 217  0                                        
SHEET    2  BC 5 CYS B 249  ASP B 253 -1  O  VAL B 251   N  ILE B 216           
SHEET    3  BC 5 VAL B 222  ALA B 226  1  O  VAL B 222   N  GLU B 250           
SHEET    4  BC 5 LEU B 275  PRO B 282  1  O  LEU B 276   N  VAL B 225           
SHEET    5  BC 5 SER B 308  GLY B 312  1  O  SER B 308   N  ILE B 277           
LINK         O   SER A 161                 K     K A1401     1555   1555  2.87  
LINK         OG  SER A 161                 K     K A1401     1555   1555  2.93  
LINK         O   PRO A 163                 K     K A1401     1555   1555  2.65  
LINK         OG1 THR A 166                 K     K A1401     1555   1555  3.07  
LINK         OE1 GLN A 167                 K     K A1401     1555   1555  2.87  
LINK         OE1 GLU A 193                MN    MN A1402     1555   1555  2.21  
LINK         OD1 ASN A 222                MN    MN A1402     1555   1555  2.24  
LINK         O   TYR A 224                MN    MN A1402     1555   1555  2.27  
LINK         K     K A1401                 O   HOH A2132     1555   1555  2.65  
LINK         K     K A1401                 O   HOH A2198     1555   1555  2.66  
LINK        MN    MN A1402                 O1A TPP A1404     1555   1555  2.13  
LINK        MN    MN A1402                 O2B TPP A1404     1555   1555  2.12  
LINK        MN    MN A1402                 O   HOH A2360     1555   1555  2.37  
LINK         O   GLY B 128                 K     K B1343     1555   1555  2.72  
LINK         O   LEU B 130                 K     K B1343     1555   1555  2.92  
LINK         OG1 THR B 131                 K     K B1343     1555   1555  3.44  
LINK         O   CYS B 178                 K     K B1343     1555   1555  2.70  
LINK         O   ASP B 181                 K     K B1343     1555   1555  2.89  
LINK         O   ASN B 183                 K     K B1343     1555   1555  2.67  
LINK         K     K B1343                 O   HOH B2135     1555   1555  2.95  
CISPEP   1 ILE B  258    PRO B  259          0       -15.72                     
SITE     1 AC1  6 SER A 161  PRO A 163  THR A 166  GLN A 167                    
SITE     2 AC1  6 HOH A2132  HOH A2198                                          
SITE     1 AC2  5 GLU A 193  ASN A 222  TYR A 224  TPP A1404                    
SITE     2 AC2  5 HOH A2360                                                     
SITE     1 AC3  6 ALA A 112  LEU A 164  ALA A 165  GLN A 167                    
SITE     2 AC3  6 ALA A 195  HOH A2211                                          
SITE     1 AC4  2 TYR A 113  HOH A2195                                          
SITE     1 AC5  7 GLY B 128  LEU B 130  THR B 131  CYS B 178                    
SITE     2 AC5  7 ASP B 181  ASN B 183  HOH B2135                               
SITE     1 AC6 25 TYR A 113  ARG A 114  SER A 162  LEU A 164                    
SITE     2 AC6 25 GLY A 192  GLU A 193  GLY A 194  ALA A 195                    
SITE     3 AC6 25 GLU A 198  ARG A 220  ASN A 222  TYR A 224                    
SITE     4 AC6 25 ALA A 225  ILE A 226   MN A1402  HOH A2120                    
SITE     5 AC6 25 HOH A2211  HOH A2275  HOH A2360  HOH A2361                    
SITE     6 AC6 25 GLU B  46  LEU B  74  GLU B  76  GLN B  98                    
SITE     7 AC6 25 TYR B 102                                                     
SITE     1 AC7  6 ILE A  73  GLU A  76  GLN A  80  ARG A  82                    
SITE     2 AC7  6 VAL B  58  HOH B2060                                          
SITE     1 AC8  7 GLN A 374  TRP B 260  THR B 284  GLU B 290                    
SITE     2 AC8  7 THR B 294  ARG B 309  HOH B2283                               
CRYST1  145.781  145.781   69.372  90.00  90.00 120.00 P 31 2 1      6          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.006860  0.003960  0.000000        0.00000                         
SCALE2      0.000000  0.007921  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014415        0.00000