HEADER    HYDROLASE                               10-JAN-12   4D8L              
TITLE     CRYSTAL STRUCTURE OF THE 2-PYRONE-4,6-DICARBOXYLIC ACID HYDROLASE FROM
TITLE    2 SPHINGOMONAS PAUCIMOBILIS                                            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 2-PYRONE-4,6-DICARBAXYLATE HYDROLASE;                      
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: 2-PYRONE-4,6-DICARBOXYLIC ACID HYDROLASE;                   
COMPND   5 EC: 3.1.1.57;                                                        
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SPHINGOMONAS PAUCIMOBILIS;                      
SOURCE   3 ORGANISM_TAXID: 13689;                                               
SOURCE   4 STRAIN: SYK-6;                                                       
SOURCE   5 GENE: LIGI, SLG_12570;                                               
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: BC-PSGX3(BC)                              
KEYWDS    STRUCTURAL GENOMICS, PROTEIN STRUCTURE INITIATIVE, NEW YORK           
KEYWDS   2 STRUCTURAL GENOMIX RESEARCH CONSORTIUM, NYSGXRC, HYDROLASE, PSI-2,   
KEYWDS   3 NEW YORK SGX RESEARCH CENTER FOR STRUCTURAL GENOMICS                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    V.N.MALASHKEVICH,R.TORO,J.BONANNO,J.M.SAUDER,S.K.BURLEY,S.C.ALMO,NEW  
AUTHOR   2 YORK SGX RESEARCH CENTER FOR STRUCTURAL GENOMICS (NYSGXRC)           
REVDAT   9   28-FEB-24 4D8L    1       REMARK                                   
REVDAT   8   10-FEB-21 4D8L    1       AUTHOR JRNL   SEQADV                     
REVDAT   7   21-NOV-18 4D8L    1       AUTHOR                                   
REVDAT   6   20-FEB-13 4D8L    1       JRNL                                     
REVDAT   5   23-JAN-13 4D8L    1       JRNL                                     
REVDAT   4   09-JAN-13 4D8L    1       JRNL                                     
REVDAT   3   03-OCT-12 4D8L    1       JRNL                                     
REVDAT   2   01-FEB-12 4D8L    1       REMARK                                   
REVDAT   1   25-JAN-12 4D8L    0                                                
SPRSDE     25-JAN-12 4D8L      2QAH                                             
JRNL        AUTH   M.E.HOBBS,V.MALASHKEVICH,H.J.WILLIAMS,C.XU,J.M.SAUDER,       
JRNL        AUTH 2 S.K.BURLEY,S.C.ALMO,F.M.RAUSHEL                              
JRNL        TITL   STRUCTURE AND CATALYTIC MECHANISM OF LIGI: INSIGHT INTO THE  
JRNL        TITL 2 AMIDOHYDROLASE ENZYMES OF COG3618 AND LIGNIN DEGRADATION.    
JRNL        REF    BIOCHEMISTRY                  V.  51  3497 2012              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   22475079                                                     
JRNL        DOI    10.1021/BI300307B                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
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) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.91                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 77.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 17021                          
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) : 0.174                           
REMARK   3   R VALUE            (WORKING SET) : 0.172                           
REMARK   3   FREE R VALUE                     : 0.229                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 863                             
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) : 2.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.05                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 247                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 17.37                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2250                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 15                           
REMARK   3   BIN FREE R VALUE                    : 0.1660                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2316                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 235                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 33.88                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : -0.01000                                             
REMARK   3    B33 (A**2) : 0.01000                                              
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): 0.249         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.202         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.123         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 8.297         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.962                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.927                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2386 ; 0.008 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3255 ; 1.319 ; 1.962       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   293 ; 5.742 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   114 ;34.331 ;23.158       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   368 ;15.384 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    22 ;16.500 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   343 ; 0.086 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1889 ; 0.006 ; 0.022       
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):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
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  : 1                                          
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   -10        A  9999                          
REMARK   3    ORIGIN FOR THE GROUP (A):  40.7749  39.4309   9.6797              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0186 T22:   0.0271                                     
REMARK   3      T33:   0.0753 T12:  -0.0055                                     
REMARK   3      T13:  -0.0051 T23:   0.0393                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.3065 L22:   1.1617                                     
REMARK   3      L33:   0.6512 L12:  -0.1499                                     
REMARK   3      L13:   0.1178 L23:  -0.2620                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0153 S12:  -0.1357 S13:  -0.3029                       
REMARK   3      S21:   0.0462 S22:  -0.0130 S23:   0.0209                       
REMARK   3      S31:   0.0079 S32:   0.0084 S33:  -0.0023                       
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: U VALUES : WITH TLS ADDED HYDROGENS       
REMARK   3  HAVE BEEN USED IF PRESENT IN THE INPUT                              
REMARK   4                                                                      
REMARK   4 4D8L COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-JAN-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000070018.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 27-APR-07                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X29A                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9791                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 35073                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 84.2                               
REMARK 200  DATA REDUNDANCY                : 1.800                              
REMARK 200  R MERGE                    (I) : 0.05700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 61.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 1.80                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.27300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: SHELX, SHELXD                                         
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 46.92                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.32                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 30% PEG 4000, 0.1M TRIS-HCL PH 8.5,0.2   
REMARK 280  MG CHLORIDE, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K        
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       26.05000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       41.37500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       36.58500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       41.37500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       26.05000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       36.58500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
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 300 REMARK: MONOMER                                                      
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: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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 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     1                                                      
REMARK 465     SER A     2                                                      
REMARK 465     GLY A   297                                                      
REMARK 465     HIS A   298                                                      
REMARK 465     HIS A   299                                                      
REMARK 465     HIS A   300                                                      
REMARK 465     HIS A   301                                                      
REMARK 465     HIS A   302                                                      
REMARK 465     HIS A   303                                                      
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    MET A 181       18.32     58.89                                   
REMARK 500    CYS A 214       61.62     68.02                                   
REMARK 500    HIS A 251       61.42     65.42                                   
REMARK 500    ALA A 257       72.33   -154.09                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2QAH   RELATED DB: PDB                                   
REMARK 900 RELATED ID: NYSGXRC-10053D   RELATED DB: TARGETTRACK                 
REMARK 900 RELATED ID: 4D95   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4D9A   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4D9D   RELATED DB: PDB                                   
DBREF  4D8L A    4   295  UNP    O87170   O87170_PSEPA     2    293             
SEQADV 4D8L MET A    1  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L SER A    2  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L LEU A    3  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L GLU A  296  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L GLY A  297  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L HIS A  298  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L HIS A  299  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L HIS A  300  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L HIS A  301  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L HIS A  302  UNP  O87170              EXPRESSION TAG                 
SEQADV 4D8L HIS A  303  UNP  O87170              EXPRESSION TAG                 
SEQRES   1 A  303  MET SER LEU THR ASN ASP GLU ARG ILE LEU SER TRP ASN          
SEQRES   2 A  303  GLU THR PRO SER LYS PRO ARG TYR THR PRO PRO PRO GLY          
SEQRES   3 A  303  ALA ILE ASP ALA HIS CYS HIS VAL PHE GLY PRO MET ALA          
SEQRES   4 A  303  GLN PHE PRO PHE SER PRO LYS ALA LYS TYR LEU PRO ARG          
SEQRES   5 A  303  ASP ALA GLY PRO ASP MET LEU PHE ALA LEU ARG ASP HIS          
SEQRES   6 A  303  LEU GLY PHE ALA ARG ASN VAL ILE VAL GLN ALA SER CYS          
SEQRES   7 A  303  HIS GLY THR ASP ASN ALA ALA THR LEU ASP ALA ILE ALA          
SEQRES   8 A  303  ARG ALA GLN GLY LYS ALA ARG GLY ILE ALA VAL VAL ASP          
SEQRES   9 A  303  PRO ALA ILE ASP GLU ALA GLU LEU ALA ALA LEU HIS GLU          
SEQRES  10 A  303  GLY GLY MET ARG GLY ILE ARG PHE ASN PHE LEU LYS ARG          
SEQRES  11 A  303  LEU VAL ASP ASP ALA PRO LYS ASP LYS PHE LEU GLU VAL          
SEQRES  12 A  303  ALA GLY ARG LEU PRO ALA GLY TRP HIS VAL VAL ILE TYR          
SEQRES  13 A  303  PHE GLU ALA ASP ILE LEU GLU GLU LEU ARG PRO PHE MET          
SEQRES  14 A  303  ASP ALA ILE PRO VAL PRO ILE VAL ILE ASP HIS MET GLY          
SEQRES  15 A  303  ARG PRO ASP VAL ARG GLN GLY PRO ASP GLY ALA ASP MET          
SEQRES  16 A  303  LYS ALA PHE ARG ARG LEU LEU ASP SER ARG GLU ASP ILE          
SEQRES  17 A  303  TRP PHE LYS ALA THR CYS PRO ASP ARG LEU ASP PRO ALA          
SEQRES  18 A  303  GLY PRO PRO TRP ASP ASP PHE ALA ARG SER VAL ALA PRO          
SEQRES  19 A  303  LEU VAL ALA ASP TYR ALA ASP ARG VAL ILE TRP GLY THR          
SEQRES  20 A  303  ASP TRP PRO HIS PRO ASN MET GLN ASP ALA ILE PRO ASP          
SEQRES  21 A  303  ASP GLY LEU VAL VAL ASP MET ILE PRO ARG ILE ALA PRO          
SEQRES  22 A  303  THR PRO GLU LEU GLN HIS LYS MET LEU VAL THR ASN PRO          
SEQRES  23 A  303  MET ARG LEU TYR TRP SER GLU GLU MET GLU GLY HIS HIS          
SEQRES  24 A  303  HIS HIS HIS HIS                                              
FORMUL   2  HOH   *235(H2 O)                                                    
HELIX    1   1 THR A    4  ARG A    8  5                                   5    
HELIX    2   2 GLY A   55  GLY A   67  1                                  13    
HELIX    3   3 ALA A   76  GLY A   80  5                                   5    
HELIX    4   4 ASN A   83  ALA A   93  1                                  11    
HELIX    5   5 ASP A  108  GLY A  118  1                                  11    
HELIX    6   6 LEU A  128  ASP A  133  1                                   6    
HELIX    7   7 PRO A  136  GLY A  145  1                                  10    
HELIX    8   8 GLU A  158  ASP A  160  5                                   3    
HELIX    9   9 ILE A  161  ILE A  172  1                                  12    
HELIX   10  10 HIS A  180  ARG A  183  5                                   4    
HELIX   11  11 ASP A  185  GLY A  189  5                                   5    
HELIX   12  12 GLY A  192  ARG A  205  1                                  14    
HELIX   13  13 CYS A  214  ASP A  219  1                                   6    
HELIX   14  14 TRP A  225  TYR A  239  1                                  15    
HELIX   15  15 ASP A  260  MET A  267  1                                   8    
HELIX   16  16 MET A  267  ALA A  272  1                                   6    
HELIX   17  17 THR A  274  VAL A  283  1                                  10    
HELIX   18  18 VAL A  283  TRP A  291  1                                   9    
HELIX   19  19 SER A  292  MET A  295  5                                   4    
SHEET    1   A 8 ILE A  28  CYS A  32  0                                        
SHEET    2   A 8 ARG A  70  VAL A  74  1  O  VAL A  74   N  CYS A  32           
SHEET    3   A 8 ALA A  97  ALA A 101  1  O  ARG A  98   N  ILE A  73           
SHEET    4   A 8 MET A 120  ASN A 126  1  O  ARG A 121   N  GLY A  99           
SHEET    5   A 8 HIS A 152  TYR A 156  1  O  VAL A 154   N  ILE A 123           
SHEET    6   A 8 ILE A 176  ILE A 178  1  O  VAL A 177   N  ILE A 155           
SHEET    7   A 8 ILE A 208  LYS A 211  1  O  TRP A 209   N  ILE A 176           
SHEET    8   A 8 VAL A 243  ILE A 244  1  O  ILE A 244   N  PHE A 210           
CISPEP   1 GLY A   36    PRO A   37          0        -2.14                     
CISPEP   2 PRO A  223    PRO A  224          0         6.17                     
CISPEP   3 TRP A  249    PRO A  250          0         5.24                     
CRYST1   52.100   73.170   82.750  90.00  90.00  90.00 P 21 21 21    4          
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      0.019194  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.013667  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012085        0.00000