HEADER    ISOMERASE                               13-MAY-10   2XEC              
TITLE     NOCARDIA FARCINICA MALEATE CIS-TRANS ISOMERASE BOUND TO TRIS          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PUTATIVE MALEATE ISOMERASE;                                
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 EC: 5.2.1.1;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: NOCARDIA FARCINICA;                             
SOURCE   3 ORGANISM_TAXID: 247156;                                              
SOURCE   4 STRAIN: IFM 10152;                                                   
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: ROSETTA2 (DE3);                            
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET-YSBLIC3C;                             
SOURCE   9 OTHER_DETAILS: NOCARDIA FARCINICA GENOME PROJECT                     
KEYWDS    ISOMERASE                                                             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    F.FISCH,C.MARTINEZ-FLEITES,N.BAUDENDISTEL,B.HAUER,J.P.TURKENBURG,     
AUTHOR   2 S.HART,N.C.BRUCE,G.GROGAN                                            
REVDAT   4   20-DEC-23 2XEC    1       REMARK LINK                              
REVDAT   3   03-OCT-12 2XEC    1       REMARK VERSN                             
REVDAT   2   20-APR-11 2XEC    1       JRNL   REMARK                            
REVDAT   1   18-AUG-10 2XEC    0                                                
JRNL        AUTH   F.FISCH,C.M.FLEITES,M.DELENNE,N.BAUDENDISTEL,B.HAUER,        
JRNL        AUTH 2 J.P.TURKENBURG,S.HART,N.C.BRUCE,G.GROGAN                     
JRNL        TITL   A COVALENT SUCCINYLCYSTEINE-LIKE INTERMEDIATE IN THE         
JRNL        TITL 2 ENZYME-CATALYZED TRANSFORMATION OF MALEATE TO FUMARATE BY    
JRNL        TITL 3 MALEATE ISOMERASE.                                           
JRNL        REF    J.AM.CHEM.SOC.                V. 132 11455 2010              
JRNL        REFN                   ISSN 0002-7863                               
JRNL        PMID   20677745                                                     
JRNL        DOI    10.1021/JA1053576                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0109                                      
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) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.67                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 49570                          
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) : 0.241                           
REMARK   3   R VALUE            (WORKING SET) : 0.239                           
REMARK   3   FREE R VALUE                     : 0.288                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2661                            
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) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.26                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 3616                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.95                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3430                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 196                          
REMARK   3   BIN FREE R VALUE                    : 0.3540                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 7240                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 18                                      
REMARK   3   SOLVENT ATOMS            : 119                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 53.43                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.84000                                             
REMARK   3    B22 (A**2) : 0.44000                                              
REMARK   3    B33 (A**2) : 0.40000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
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): 0.325         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.250         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.254         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 23.311        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.936                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.902                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  7366 ; 0.017 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES): 10027 ; 1.697 ; 1.986       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   975 ; 6.713 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   284 ;31.435 ;22.958       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1190 ;19.141 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    72 ;22.684 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1206 ; 0.114 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  5508 ; 0.008 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):  4885 ; 0.683 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  7838 ; 1.170 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2481 ; 2.179 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  2189 ; 3.212 ; 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  : 4                                          
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     1        A   248                          
REMARK   3    ORIGIN FOR THE GROUP (A):   7.4015  48.8260 -14.7298              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2618 T22:   0.2240                                     
REMARK   3      T33:   0.1963 T12:   0.0708                                     
REMARK   3      T13:  -0.0123 T23:  -0.0151                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   2.1083 L22:   3.0282                                     
REMARK   3      L33:   3.0145 L12:  -1.2227                                     
REMARK   3      L13:   0.8683 L23:  -0.2716                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.2133 S12:   0.1476 S13:   0.0096                       
REMARK   3      S21:  -0.2098 S22:  -0.1717 S23:  -0.0237                       
REMARK   3      S31:   0.5034 S32:   0.2350 S33:  -0.0415                       
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 :   B     1        B   245                          
REMARK   3    ORIGIN FOR THE GROUP (A):  14.4484  33.3830  13.5661              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3697 T22:   0.2510                                     
REMARK   3      T33:   0.2688 T12:  -0.0549                                     
REMARK   3      T13:  -0.0327 T23:  -0.0093                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.5781 L22:   3.9039                                     
REMARK   3      L33:   2.1812 L12:  -0.0118                                     
REMARK   3      L13:   0.1379 L23:  -1.3963                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0736 S12:  -0.0598 S13:  -0.0944                       
REMARK   3      S21:  -0.2428 S22:  -0.0322 S23:   0.2011                       
REMARK   3      S31:   0.6022 S32:  -0.0600 S33:  -0.0414                       
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 :   C     1        C   245                          
REMARK   3    ORIGIN FOR THE GROUP (A):  19.5408  44.6097  44.2117              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1065 T22:   0.3591                                     
REMARK   3      T33:   0.3045 T12:  -0.0524                                     
REMARK   3      T13:  -0.0653 T23:   0.0053                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.1032 L22:   5.2956                                     
REMARK   3      L33:   9.8865 L12:   1.6628                                     
REMARK   3      L13:  -2.3545 L23:  -3.5148                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0717 S12:  -0.0972 S13:  -0.0205                       
REMARK   3      S21:  -0.0930 S22:   0.1339 S23:   0.0468                       
REMARK   3      S31:   0.4843 S32:   0.2256 S33:  -0.2056                       
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 :   D     1        D   246                          
REMARK   3    ORIGIN FOR THE GROUP (A):  19.5597  45.2726 -45.5562              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1228 T22:   0.5322                                     
REMARK   3      T33:   0.4311 T12:  -0.0393                                     
REMARK   3      T13:   0.0403 T23:  -0.1463                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   3.1178 L22:   4.1042                                     
REMARK   3      L33:  13.4671 L12:  -0.0243                                     
REMARK   3      L13:   4.0836 L23:   0.7167                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0407 S12:   0.3333 S13:  -0.5785                       
REMARK   3      S21:   0.5186 S22:   0.4044 S23:  -0.2492                       
REMARK   3      S31:  -0.2965 S32:   1.3531 S33:  -0.4450                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
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. U VALUES RESIDUAL ONLY ATOM RECORD CONTAINS SUM OF       
REMARK   3  TLS AND RESIDUAL B FACTORS ANISOU RECORD CONTAINS SUM OF TLS AND    
REMARK   3  RESIDUAL U FACTORS                                                  
REMARK   4                                                                      
REMARK   4 2XEC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 13-MAY-10.                  
REMARK 100 THE DEPOSITION ID IS D_1290043817.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-APR-09                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID23-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9760                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC CCD                           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 52302                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.160                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.6                               
REMARK 200  DATA REDUNDANCY                : 4.300                              
REMARK 200  R MERGE                    (I) : 0.08000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 9.6000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.32                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.40                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.46000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.600                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: PDB ENTRY 3DG9                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.52                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 300 MM CA ACETATE 100 MM TRIS PH 7.5 5   
REMARK 280  MM NA MALEATE 16% PEG 3350                                          
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
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 -1.000000  0.000000  0.000000       25.08000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      119.06500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       42.25500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000      119.06500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       25.08000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       42.25500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3                                                 
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1620 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18640 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -5.5 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, D                                  
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                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 970 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 18590 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -14.2 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, C                                  
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                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
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: 3530 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 36300 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -19.7 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, D                                  
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 APPLY THE FOLLOWING TO CHAINS: B, C                                  
REMARK 350   BIOMT1   2  1.000000  0.000000  0.000000      -25.08000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000      126.76500            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
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     MET A   -21                                                      
REMARK 465     GLY A   -20                                                      
REMARK 465     SER A   -19                                                      
REMARK 465     SER A   -18                                                      
REMARK 465     HIS A   -17                                                      
REMARK 465     HIS A   -16                                                      
REMARK 465     HIS A   -15                                                      
REMARK 465     HIS A   -14                                                      
REMARK 465     HIS A   -13                                                      
REMARK 465     HIS A   -12                                                      
REMARK 465     SER A   -11                                                      
REMARK 465     SER A   -10                                                      
REMARK 465     GLY A    -9                                                      
REMARK 465     LEU A    -8                                                      
REMARK 465     GLU A    -7                                                      
REMARK 465     VAL A    -6                                                      
REMARK 465     LEU A    -5                                                      
REMARK 465     PHE A    -4                                                      
REMARK 465     GLN A    -3                                                      
REMARK 465     GLY A    -2                                                      
REMARK 465     PRO A    -1                                                      
REMARK 465     ALA A     0                                                      
REMARK 465     MET A     1                                                      
REMARK 465     GLY A     2                                                      
REMARK 465     THR A   249                                                      
REMARK 465     ALA A   250                                                      
REMARK 465     SER A   251                                                      
REMARK 465     MET B   -21                                                      
REMARK 465     GLY B   -20                                                      
REMARK 465     SER B   -19                                                      
REMARK 465     SER B   -18                                                      
REMARK 465     HIS B   -17                                                      
REMARK 465     HIS B   -16                                                      
REMARK 465     HIS B   -15                                                      
REMARK 465     HIS B   -14                                                      
REMARK 465     HIS B   -13                                                      
REMARK 465     HIS B   -12                                                      
REMARK 465     SER B   -11                                                      
REMARK 465     SER B   -10                                                      
REMARK 465     GLY B    -9                                                      
REMARK 465     LEU B    -8                                                      
REMARK 465     GLU B    -7                                                      
REMARK 465     VAL B    -6                                                      
REMARK 465     LEU B    -5                                                      
REMARK 465     PHE B    -4                                                      
REMARK 465     GLN B    -3                                                      
REMARK 465     GLY B    -2                                                      
REMARK 465     PRO B    -1                                                      
REMARK 465     ALA B     0                                                      
REMARK 465     SER B   246                                                      
REMARK 465     ALA B   247                                                      
REMARK 465     VAL B   248                                                      
REMARK 465     THR B   249                                                      
REMARK 465     ALA B   250                                                      
REMARK 465     SER B   251                                                      
REMARK 465     MET C   -21                                                      
REMARK 465     GLY C   -20                                                      
REMARK 465     SER C   -19                                                      
REMARK 465     SER C   -18                                                      
REMARK 465     HIS C   -17                                                      
REMARK 465     HIS C   -16                                                      
REMARK 465     HIS C   -15                                                      
REMARK 465     HIS C   -14                                                      
REMARK 465     HIS C   -13                                                      
REMARK 465     HIS C   -12                                                      
REMARK 465     SER C   -11                                                      
REMARK 465     SER C   -10                                                      
REMARK 465     GLY C    -9                                                      
REMARK 465     LEU C    -8                                                      
REMARK 465     GLU C    -7                                                      
REMARK 465     VAL C    -6                                                      
REMARK 465     LEU C    -5                                                      
REMARK 465     PHE C    -4                                                      
REMARK 465     GLN C    -3                                                      
REMARK 465     GLY C    -2                                                      
REMARK 465     PRO C    -1                                                      
REMARK 465     ALA C     0                                                      
REMARK 465     MET C     1                                                      
REMARK 465     GLY C     2                                                      
REMARK 465     SER C   246                                                      
REMARK 465     ALA C   247                                                      
REMARK 465     VAL C   248                                                      
REMARK 465     THR C   249                                                      
REMARK 465     ALA C   250                                                      
REMARK 465     SER C   251                                                      
REMARK 465     MET D   -21                                                      
REMARK 465     GLY D   -20                                                      
REMARK 465     SER D   -19                                                      
REMARK 465     SER D   -18                                                      
REMARK 465     HIS D   -17                                                      
REMARK 465     HIS D   -16                                                      
REMARK 465     HIS D   -15                                                      
REMARK 465     HIS D   -14                                                      
REMARK 465     HIS D   -13                                                      
REMARK 465     HIS D   -12                                                      
REMARK 465     SER D   -11                                                      
REMARK 465     SER D   -10                                                      
REMARK 465     GLY D    -9                                                      
REMARK 465     LEU D    -8                                                      
REMARK 465     GLU D    -7                                                      
REMARK 465     VAL D    -6                                                      
REMARK 465     LEU D    -5                                                      
REMARK 465     PHE D    -4                                                      
REMARK 465     GLN D    -3                                                      
REMARK 465     GLY D    -2                                                      
REMARK 465     PRO D    -1                                                      
REMARK 465     ALA D     0                                                      
REMARK 465     MET D     1                                                      
REMARK 465     ALA D   247                                                      
REMARK 465     VAL D   248                                                      
REMARK 465     THR D   249                                                      
REMARK 465     ALA D   250                                                      
REMARK 465     SER D   251                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    GLN D    98     CG2  THR D   101              1.79            
REMARK 500   OE1  GLU D    87     NH2  ARG D    90              2.17            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    ARG D 208   CZ    ARG D 208   NH1     0.117                       
REMARK 500    GLU D 209   CD    GLU D 209   OE1     0.209                       
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 A  59   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.2 DEGREES          
REMARK 500    ARG B  59   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.3 DEGREES          
REMARK 500    VAL D  71   CB  -  CA  -  C   ANGL. DEV. = -13.5 DEGREES          
REMARK 500    GLU D 209   OE1 -  CD  -  OE2 ANGL. DEV. =   8.1 DEGREES          
REMARK 500    PRO D 236   C   -  N   -  CD  ANGL. DEV. = -21.2 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    GLU A  18       -7.10    -59.22                                   
REMARK 500    HIS A  43      -42.82   -131.20                                   
REMARK 500    PRO A  85      118.03    -34.82                                   
REMARK 500    SER A 199      -17.79   -156.25                                   
REMARK 500    ALA A 234       37.29   -141.20                                   
REMARK 500    ALA B  75       49.29    -89.60                                   
REMARK 500    LEU B  77      -70.46   -108.47                                   
REMARK 500    CYS B 193       43.90    -92.14                                   
REMARK 500    SER B 199        2.55   -167.90                                   
REMARK 500    ALA B 234       59.62   -148.81                                   
REMARK 500    ALA B 238       52.09   -148.05                                   
REMARK 500    GLN B 244       -6.43    -56.31                                   
REMARK 500    MET C  42      119.39   -164.33                                   
REMARK 500    ASP C 123       34.22     39.24                                   
REMARK 500    GLN C 125      -50.25   -131.88                                   
REMARK 500    GLU C 185       -4.25     80.41                                   
REMARK 500    ALA C 188      141.22   -170.64                                   
REMARK 500    CYS C 193       40.14    -92.07                                   
REMARK 500    SER C 199       -5.63   -162.55                                   
REMARK 500    ALA C 234       59.59   -158.41                                   
REMARK 500    ALA C 238       45.99   -151.49                                   
REMARK 500    GLN C 244       13.19    -65.75                                   
REMARK 500    LEU D  77      -68.39   -106.15                                   
REMARK 500    ASP D 123       34.95     71.20                                   
REMARK 500    GLU D 159       67.43     63.71                                   
REMARK 500    SER D 199      -39.76   -144.79                                   
REMARK 500    ALA D 234       66.38   -155.72                                   
REMARK 500    ALA D 238       65.47   -157.45                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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                              CA D1247  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 148   OE1                                                    
REMARK 620 2 HOH A2023   O    86.5                                              
REMARK 620 3 HOH A2027   O    72.5  97.0                                        
REMARK 620 4 GLU D 148   OE1 151.7 117.9  89.3                                  
REMARK 620 5 HOH D2007   O   120.4  62.4 152.5  85.6                            
REMARK 620 6 HOH D2008   O    83.2 156.0 100.5  78.8 104.9                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRS A 300                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 1246                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRS D 300                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA D 1247                 
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 ADDITIONAL N-TERMINAL HIS-TAG                                        
DBREF  2XEC A    1   251  UNP    Q5YXQ1   Q5YXQ1_NOCFA     1    251             
DBREF  2XEC B    1   251  UNP    Q5YXQ1   Q5YXQ1_NOCFA     1    251             
DBREF  2XEC C    1   251  UNP    Q5YXQ1   Q5YXQ1_NOCFA     1    251             
DBREF  2XEC D    1   251  UNP    Q5YXQ1   Q5YXQ1_NOCFA     1    251             
SEQADV 2XEC MET A  -21  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY A  -20  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER A  -19  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER A  -18  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS A  -17  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS A  -16  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS A  -15  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS A  -14  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS A  -13  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS A  -12  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER A  -11  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER A  -10  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY A   -9  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU A   -8  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLU A   -7  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC VAL A   -6  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU A   -5  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PHE A   -4  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLN A   -3  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY A   -2  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PRO A   -1  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC ALA A    0  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC MET B  -21  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY B  -20  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER B  -19  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER B  -18  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS B  -17  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS B  -16  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS B  -15  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS B  -14  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS B  -13  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS B  -12  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER B  -11  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER B  -10  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY B   -9  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU B   -8  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLU B   -7  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC VAL B   -6  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU B   -5  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PHE B   -4  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLN B   -3  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY B   -2  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PRO B   -1  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC ALA B    0  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC MET C  -21  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY C  -20  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER C  -19  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER C  -18  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS C  -17  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS C  -16  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS C  -15  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS C  -14  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS C  -13  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS C  -12  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER C  -11  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER C  -10  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY C   -9  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU C   -8  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLU C   -7  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC VAL C   -6  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU C   -5  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PHE C   -4  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLN C   -3  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY C   -2  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PRO C   -1  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC ALA C    0  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC MET D  -21  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY D  -20  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER D  -19  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER D  -18  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS D  -17  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS D  -16  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS D  -15  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS D  -14  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS D  -13  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC HIS D  -12  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER D  -11  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC SER D  -10  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY D   -9  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU D   -8  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLU D   -7  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC VAL D   -6  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC LEU D   -5  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PHE D   -4  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLN D   -3  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC GLY D   -2  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC PRO D   -1  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQADV 2XEC ALA D    0  UNP  Q5YXQ1              EXPRESSION TAG                 
SEQRES   1 A  273  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 A  273  LEU GLU VAL LEU PHE GLN GLY PRO ALA MET GLY ILE ARG          
SEQRES   3 A  273  ARG ILE GLY LEU VAL VAL PRO SER SER ASN VAL THR VAL          
SEQRES   4 A  273  GLU THR GLU MET PRO ALA LEU LEU SER ARG HIS PRO GLY          
SEQRES   5 A  273  ALA GLU PHE SER PHE HIS SER THR ARG MET ARG MET HIS          
SEQRES   6 A  273  THR VAL SER PRO GLU GLY LEU ALA ALA MET ASN ALA GLN          
SEQRES   7 A  273  ARG GLU ARG CYS VAL LEU GLU ILE ALA ASP ALA ALA PRO          
SEQRES   8 A  273  GLU VAL ILE LEU TYR ALA CYS LEU VAL ALA VAL MET VAL          
SEQRES   9 A  273  GLY GLY PRO GLY GLU HIS HIS ARG VAL GLU SER ALA VAL          
SEQRES  10 A  273  ALA GLU GLN LEU ALA THR GLY GLY SER GLN ALA LEU VAL          
SEQRES  11 A  273  ARG SER SER ALA GLY ALA LEU VAL GLU GLY LEU ARG ALA          
SEQRES  12 A  273  LEU ASP ALA GLN ARG VAL ALA LEU VAL THR PRO TYR MET          
SEQRES  13 A  273  ARG PRO LEU ALA GLU LYS VAL VAL ALA TYR LEU GLU ALA          
SEQRES  14 A  273  GLU GLY PHE THR ILE SER ASP TRP ARG ALA LEU GLU VAL          
SEQRES  15 A  273  ALA ASP ASN THR GLU VAL GLY CYS ILE PRO GLY GLU GLN          
SEQRES  16 A  273  VAL MET ALA ALA ALA ARG SER LEU ASP LEU SER GLU VAL          
SEQRES  17 A  273  ASP ALA LEU VAL ILE SER CYS CYS VAL GLN MET PRO SER          
SEQRES  18 A  273  LEU PRO LEU VAL GLU THR ALA GLU ARG GLU PHE GLY ILE          
SEQRES  19 A  273  PRO VAL LEU SER ALA ALA THR ALA GLY ALA TYR SER ILE          
SEQRES  20 A  273  LEU ARG SER LEU ASP LEU PRO VAL ALA VAL PRO GLY ALA          
SEQRES  21 A  273  GLY ARG LEU LEU ARG GLN ASP SER ALA VAL THR ALA SER          
SEQRES   1 B  273  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 B  273  LEU GLU VAL LEU PHE GLN GLY PRO ALA MET GLY ILE ARG          
SEQRES   3 B  273  ARG ILE GLY LEU VAL VAL PRO SER SER ASN VAL THR VAL          
SEQRES   4 B  273  GLU THR GLU MET PRO ALA LEU LEU SER ARG HIS PRO GLY          
SEQRES   5 B  273  ALA GLU PHE SER PHE HIS SER THR ARG MET ARG MET HIS          
SEQRES   6 B  273  THR VAL SER PRO GLU GLY LEU ALA ALA MET ASN ALA GLN          
SEQRES   7 B  273  ARG GLU ARG CYS VAL LEU GLU ILE ALA ASP ALA ALA PRO          
SEQRES   8 B  273  GLU VAL ILE LEU TYR ALA CYS LEU VAL ALA VAL MET VAL          
SEQRES   9 B  273  GLY GLY PRO GLY GLU HIS HIS ARG VAL GLU SER ALA VAL          
SEQRES  10 B  273  ALA GLU GLN LEU ALA THR GLY GLY SER GLN ALA LEU VAL          
SEQRES  11 B  273  ARG SER SER ALA GLY ALA LEU VAL GLU GLY LEU ARG ALA          
SEQRES  12 B  273  LEU ASP ALA GLN ARG VAL ALA LEU VAL THR PRO TYR MET          
SEQRES  13 B  273  ARG PRO LEU ALA GLU LYS VAL VAL ALA TYR LEU GLU ALA          
SEQRES  14 B  273  GLU GLY PHE THR ILE SER ASP TRP ARG ALA LEU GLU VAL          
SEQRES  15 B  273  ALA ASP ASN THR GLU VAL GLY CYS ILE PRO GLY GLU GLN          
SEQRES  16 B  273  VAL MET ALA ALA ALA ARG SER LEU ASP LEU SER GLU VAL          
SEQRES  17 B  273  ASP ALA LEU VAL ILE SER CYS CYS VAL GLN MET PRO SER          
SEQRES  18 B  273  LEU PRO LEU VAL GLU THR ALA GLU ARG GLU PHE GLY ILE          
SEQRES  19 B  273  PRO VAL LEU SER ALA ALA THR ALA GLY ALA TYR SER ILE          
SEQRES  20 B  273  LEU ARG SER LEU ASP LEU PRO VAL ALA VAL PRO GLY ALA          
SEQRES  21 B  273  GLY ARG LEU LEU ARG GLN ASP SER ALA VAL THR ALA SER          
SEQRES   1 C  273  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 C  273  LEU GLU VAL LEU PHE GLN GLY PRO ALA MET GLY ILE ARG          
SEQRES   3 C  273  ARG ILE GLY LEU VAL VAL PRO SER SER ASN VAL THR VAL          
SEQRES   4 C  273  GLU THR GLU MET PRO ALA LEU LEU SER ARG HIS PRO GLY          
SEQRES   5 C  273  ALA GLU PHE SER PHE HIS SER THR ARG MET ARG MET HIS          
SEQRES   6 C  273  THR VAL SER PRO GLU GLY LEU ALA ALA MET ASN ALA GLN          
SEQRES   7 C  273  ARG GLU ARG CYS VAL LEU GLU ILE ALA ASP ALA ALA PRO          
SEQRES   8 C  273  GLU VAL ILE LEU TYR ALA CYS LEU VAL ALA VAL MET VAL          
SEQRES   9 C  273  GLY GLY PRO GLY GLU HIS HIS ARG VAL GLU SER ALA VAL          
SEQRES  10 C  273  ALA GLU GLN LEU ALA THR GLY GLY SER GLN ALA LEU VAL          
SEQRES  11 C  273  ARG SER SER ALA GLY ALA LEU VAL GLU GLY LEU ARG ALA          
SEQRES  12 C  273  LEU ASP ALA GLN ARG VAL ALA LEU VAL THR PRO TYR MET          
SEQRES  13 C  273  ARG PRO LEU ALA GLU LYS VAL VAL ALA TYR LEU GLU ALA          
SEQRES  14 C  273  GLU GLY PHE THR ILE SER ASP TRP ARG ALA LEU GLU VAL          
SEQRES  15 C  273  ALA ASP ASN THR GLU VAL GLY CYS ILE PRO GLY GLU GLN          
SEQRES  16 C  273  VAL MET ALA ALA ALA ARG SER LEU ASP LEU SER GLU VAL          
SEQRES  17 C  273  ASP ALA LEU VAL ILE SER CYS CYS VAL GLN MET PRO SER          
SEQRES  18 C  273  LEU PRO LEU VAL GLU THR ALA GLU ARG GLU PHE GLY ILE          
SEQRES  19 C  273  PRO VAL LEU SER ALA ALA THR ALA GLY ALA TYR SER ILE          
SEQRES  20 C  273  LEU ARG SER LEU ASP LEU PRO VAL ALA VAL PRO GLY ALA          
SEQRES  21 C  273  GLY ARG LEU LEU ARG GLN ASP SER ALA VAL THR ALA SER          
SEQRES   1 D  273  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 D  273  LEU GLU VAL LEU PHE GLN GLY PRO ALA MET GLY ILE ARG          
SEQRES   3 D  273  ARG ILE GLY LEU VAL VAL PRO SER SER ASN VAL THR VAL          
SEQRES   4 D  273  GLU THR GLU MET PRO ALA LEU LEU SER ARG HIS PRO GLY          
SEQRES   5 D  273  ALA GLU PHE SER PHE HIS SER THR ARG MET ARG MET HIS          
SEQRES   6 D  273  THR VAL SER PRO GLU GLY LEU ALA ALA MET ASN ALA GLN          
SEQRES   7 D  273  ARG GLU ARG CYS VAL LEU GLU ILE ALA ASP ALA ALA PRO          
SEQRES   8 D  273  GLU VAL ILE LEU TYR ALA CYS LEU VAL ALA VAL MET VAL          
SEQRES   9 D  273  GLY GLY PRO GLY GLU HIS HIS ARG VAL GLU SER ALA VAL          
SEQRES  10 D  273  ALA GLU GLN LEU ALA THR GLY GLY SER GLN ALA LEU VAL          
SEQRES  11 D  273  ARG SER SER ALA GLY ALA LEU VAL GLU GLY LEU ARG ALA          
SEQRES  12 D  273  LEU ASP ALA GLN ARG VAL ALA LEU VAL THR PRO TYR MET          
SEQRES  13 D  273  ARG PRO LEU ALA GLU LYS VAL VAL ALA TYR LEU GLU ALA          
SEQRES  14 D  273  GLU GLY PHE THR ILE SER ASP TRP ARG ALA LEU GLU VAL          
SEQRES  15 D  273  ALA ASP ASN THR GLU VAL GLY CYS ILE PRO GLY GLU GLN          
SEQRES  16 D  273  VAL MET ALA ALA ALA ARG SER LEU ASP LEU SER GLU VAL          
SEQRES  17 D  273  ASP ALA LEU VAL ILE SER CYS CYS VAL GLN MET PRO SER          
SEQRES  18 D  273  LEU PRO LEU VAL GLU THR ALA GLU ARG GLU PHE GLY ILE          
SEQRES  19 D  273  PRO VAL LEU SER ALA ALA THR ALA GLY ALA TYR SER ILE          
SEQRES  20 D  273  LEU ARG SER LEU ASP LEU PRO VAL ALA VAL PRO GLY ALA          
SEQRES  21 D  273  GLY ARG LEU LEU ARG GLN ASP SER ALA VAL THR ALA SER          
HET    TRS  A 300       8                                                       
HET     CA  B1246       1                                                       
HET    TRS  D 300       8                                                       
HET     CA  D1247       1                                                       
HETNAM     TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL                         
HETNAM      CA CALCIUM ION                                                      
HETSYN     TRS TRIS BUFFER                                                      
FORMUL   5  TRS    2(C4 H12 N O3 1+)                                            
FORMUL   6   CA    2(CA 2+)                                                     
FORMUL   9  HOH   *119(H2 O)                                                    
HELIX    1   1 THR A   16  SER A   26  1                                  11    
HELIX    2   2 SER A   46  ALA A   55  1                                  10    
HELIX    3   3 GLN A   56  ALA A   65  1                                  10    
HELIX    4   4 ASP A   66  ALA A   68  5                                   3    
HELIX    5   5 LEU A   77  VAL A   82  1                                   6    
HELIX    6   6 GLY A   86  THR A  101  1                                  16    
HELIX    7   7 SER A  111  LEU A  122  1                                  12    
HELIX    8   8 MET A  134  GLU A  148  1                                  15    
HELIX    9   9 ASP A  162  GLY A  167  1                                   6    
HELIX   10  10 PRO A  170  SER A  180  1                                  11    
HELIX   11  11 SER A  199  GLY A  211  1                                  13    
HELIX   12  12 ALA A  217  LEU A  229  1                                  13    
HELIX   13  13 GLY A  239  LEU A  242  5                                   4    
HELIX   14  14 ARG A  243  VAL A  248  1                                   6    
HELIX   15  15 THR B   16  SER B   26  1                                  11    
HELIX   16  16 SER B   46  ALA B   55  1                                  10    
HELIX   17  17 GLN B   56  ASP B   66  1                                  11    
HELIX   18  18 LEU B   77  VAL B   82  1                                   6    
HELIX   19  19 GLY B   86  GLY B  103  1                                  18    
HELIX   20  20 SER B  111  LEU B  122  1                                  12    
HELIX   21  21 MET B  134  GLU B  148  1                                  15    
HELIX   22  22 ASP B  162  GLY B  167  1                                   6    
HELIX   23  23 PRO B  170  SER B  180  1                                  11    
HELIX   24  24 SER B  199  PRO B  201  5                                   3    
HELIX   25  25 LEU B  202  GLY B  211  1                                  10    
HELIX   26  26 ALA B  217  LEU B  229  1                                  13    
HELIX   27  27 GLY B  239  GLN B  244  5                                   6    
HELIX   28  28 VAL C   15  SER C   26  1                                  12    
HELIX   29  29 SER C   46  ALA C   55  1                                  10    
HELIX   30  30 GLN C   56  ASP C   66  1                                  11    
HELIX   31  31 CYS C   76  MET C   81  1                                   6    
HELIX   32  32 GLY C   86  GLY C  102  1                                  17    
HELIX   33  33 SER C  111  LEU C  122  1                                  12    
HELIX   34  34 MET C  134  GLU C  148  1                                  15    
HELIX   35  35 ASP C  162  GLY C  167  1                                   6    
HELIX   36  36 PRO C  170  LEU C  181  1                                  12    
HELIX   37  37 SER C  199  PRO C  201  5                                   3    
HELIX   38  38 LEU C  202  GLY C  211  1                                  10    
HELIX   39  39 ALA C  217  LEU C  229  1                                  13    
HELIX   40  40 VAL D   15  SER D   26  1                                  12    
HELIX   41  41 SER D   46  ALA D   55  1                                  10    
HELIX   42  42 GLN D   56  ASP D   66  1                                  11    
HELIX   43  43 LEU D   77  VAL D   82  1                                   6    
HELIX   44  44 GLY D   86  GLY D  102  1                                  17    
HELIX   45  45 SER D  111  ASP D  123  1                                  13    
HELIX   46  46 MET D  134  GLU D  148  1                                  15    
HELIX   47  47 ASP D  162  CYS D  168  1                                   7    
HELIX   48  48 PRO D  170  LEU D  181  1                                  12    
HELIX   49  49 SER D  199  PRO D  201  5                                   3    
HELIX   50  50 LEU D  202  GLY D  211  1                                  10    
HELIX   51  51 ALA D  217  LEU D  229  1                                  13    
HELIX   52  52 ALA D  238  ARG D  243  1                                   6    
SHEET    1  AA 4 PHE A  33  MET A  40  0                                        
SHEET    2  AA 4 ARG A   4  PRO A  11  1  O  ARG A   4   N  SER A  34           
SHEET    3  AA 4 VAL A  71  TYR A  74  1  O  VAL A  71   N  GLY A   7           
SHEET    4  AA 4 LEU A 107  SER A 110  1  O  LEU A 107   N  ILE A  72           
SHEET    1  AB 4 THR A 151  ALA A 157  0                                        
SHEET    2  AB 4 ARG A 126  THR A 131  1  O  VAL A 127   N  SER A 153           
SHEET    3  AB 4 ALA A 188  SER A 192  1  O  ALA A 188   N  ALA A 128           
SHEET    4  AB 4 VAL A 214  SER A 216  1  O  LEU A 215   N  ILE A 191           
SHEET    1  BA 4 PHE B  33  MET B  40  0                                        
SHEET    2  BA 4 ARG B   4  PRO B  11  1  O  ARG B   4   N  SER B  34           
SHEET    3  BA 4 VAL B  71  TYR B  74  1  O  VAL B  71   N  GLY B   7           
SHEET    4  BA 4 LEU B 107  SER B 110  1  O  LEU B 107   N  ILE B  72           
SHEET    1  BB 4 THR B 151  ALA B 157  0                                        
SHEET    2  BB 4 ARG B 126  THR B 131  1  O  VAL B 127   N  SER B 153           
SHEET    3  BB 4 ALA B 188  SER B 192  1  O  ALA B 188   N  ALA B 128           
SHEET    4  BB 4 VAL B 214  SER B 216  1  O  LEU B 215   N  ILE B 191           
SHEET    1  CA 4 PHE C  33  MET C  40  0                                        
SHEET    2  CA 4 ARG C   4  PRO C  11  1  O  ARG C   4   N  SER C  34           
SHEET    3  CA 4 VAL C  71  TYR C  74  1  O  VAL C  71   N  GLY C   7           
SHEET    4  CA 4 LEU C 107  SER C 110  1  O  LEU C 107   N  ILE C  72           
SHEET    1  CB 4 THR C 151  ALA C 157  0                                        
SHEET    2  CB 4 ARG C 126  THR C 131  1  O  VAL C 127   N  SER C 153           
SHEET    3  CB 4 ALA C 188  SER C 192  1  O  ALA C 188   N  ALA C 128           
SHEET    4  CB 4 VAL C 214  SER C 216  1  O  LEU C 215   N  ILE C 191           
SHEET    1  DA 4 GLU D  32  MET D  40  0                                        
SHEET    2  DA 4 ILE D   3  PRO D  11  1  O  ARG D   4   N  SER D  34           
SHEET    3  DA 4 VAL D  71  TYR D  74  1  O  VAL D  71   N  GLY D   7           
SHEET    4  DA 4 LEU D 107  SER D 110  1  O  LEU D 107   N  ILE D  72           
SHEET    1  DB 4 THR D 151  ALA D 157  0                                        
SHEET    2  DB 4 ARG D 126  THR D 131  1  O  VAL D 127   N  SER D 153           
SHEET    3  DB 4 ALA D 188  SER D 192  1  O  ALA D 188   N  ALA D 128           
SHEET    4  DB 4 VAL D 214  SER D 216  1  O  LEU D 215   N  ILE D 191           
LINK         OE1 GLU A 148                CA    CA D1247     1555   1555  2.70  
LINK         O   HOH A2023                CA    CA D1247     1555   1555  2.63  
LINK         O   HOH A2027                CA    CA D1247     1555   1555  2.82  
LINK        CA    CA B1246                 O   HOH C2011     1555   1555  2.56  
LINK         OE1 GLU D 148                CA    CA D1247     1555   1555  2.77  
LINK        CA    CA D1247                 O   HOH D2007     1555   1555  2.69  
LINK        CA    CA D1247                 O   HOH D2008     1555   1555  2.49  
SITE     1 AC1 10 PRO A  11  ASN A  14  MET A  42  MET A  53                    
SITE     2 AC1 10 LEU A  77  VAL A  78  TYR A 133  ASN A 163                    
SITE     3 AC1 10 CYS A 194  VAL A 195                                          
SITE     1 AC2  3 GLU B 148  GLU C 148  HOH C2011                               
SITE     1 AC3 11 PRO D  11  ASN D  14  CYS D  76  LEU D  77                    
SITE     2 AC3 11 VAL D  78  ALA D  79  TYR D 133  ASN D 163                    
SITE     3 AC3 11 CYS D 194  VAL D 195  GLN D 196                               
SITE     1 AC4  6 GLU A 148  HOH A2023  HOH A2027  GLU D 148                    
SITE     2 AC4  6 HOH D2007  HOH D2008                                          
CRYST1   50.160   84.510  238.130  90.00  90.00  90.00 P 21 21 21   16          
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      0.019936  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.011833  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.004199        0.00000