HEADER    OXIDOREDUCTASE                          25-MAY-12   4FCN              
TITLE     THE CRYSTAL STRUCTURES OF SEVERAL MUTANTS OF PLEUROTUS ERYNGII        
TITLE    2 VERSATILE PEROXIDASE                                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: VERSATILE PEROXIDASE VPL2;                                 
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 31-349;                                       
COMPND   5 SYNONYM: VERSATILE LIQUID PHASE PEROXIDASE 2;                        
COMPND   6 EC: 1.11.1.16;                                                       
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PLEUROTUS ERYNGII;                              
SOURCE   3 ORGANISM_COMMON: BOLETUS OF THE STEPPES;                             
SOURCE   4 ORGANISM_TAXID: 5323;                                                
SOURCE   5 GENE: VPL2;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    LIGNIN PEROXIDASE, LIGNIN DEGRADATION, AROMATIC-SUBSTRATE BINDING,    
KEYWDS   2 OXIDOREDUCTASE                                                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.J.MATE,A.ROMERO,F.J.RUIZ-DUENAS,A.T.MARTINEZ                        
REVDAT   4   16-OCT-24 4FCN    1       REMARK                                   
REVDAT   3   13-SEP-23 4FCN    1       REMARK SEQADV LINK                       
REVDAT   2   19-DEC-12 4FCN    1       JRNL                                     
REVDAT   1   24-OCT-12 4FCN    0                                                
JRNL        AUTH   M.MORALES,M.J.MATE,A.ROMERO,M.J.MARTINEZ,A.T.MARTINEZ,       
JRNL        AUTH 2 F.J.RUIZ-DUENAS                                              
JRNL        TITL   TWO OXIDATION SITES FOR LOW REDOX POTENTIAL SUBSTRATES: A    
JRNL        TITL 2 DIRECTED MUTAGENESIS, KINETIC, AND CRYSTALLOGRAPHIC STUDY ON 
JRNL        TITL 3 PLEUROTUS ERYNGII VERSATILE PEROXIDASE.                      
JRNL        REF    J.BIOL.CHEM.                  V. 287 41053 2012              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   23071108                                                     
JRNL        DOI    10.1074/JBC.M112.405548                                      
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   F.J.RUIZ-DUENAS,M.MORALES,M.J.MATE,A.ROMERO,M.J.MARTINEZ,    
REMARK   1  AUTH 2 A.SMITH,A.T.MARTINEZ                                         
REMARK   1  TITL   SITE-DIRECTED MUTAGENESIS OF THE CATALYTIC TRYPTOPHAN        
REMARK   1  TITL 2 ENVIRONMENT IN PLEUROTUS ERYNGII VERSATILE PEROXIDASE.       
REMARK   1  REF    BIOCHEMISTRY                  V.  47  1685 2008              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0102                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.17                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 46936                          
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) : 0.148                           
REMARK   3   R VALUE            (WORKING SET) : 0.147                           
REMARK   3   FREE R VALUE                     : 0.174                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2505                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.75                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 3459                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.62                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2550                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 190                          
REMARK   3   BIN FREE R VALUE                    : 0.2930                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2348                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 50                                      
REMARK   3   SOLVENT ATOMS            : 349                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 14.75                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.45                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.11000                                             
REMARK   3    B22 (A**2) : -0.11000                                             
REMARK   3    B33 (A**2) : 0.21000                                              
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): 0.070         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.073         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.044         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.331         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.966                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.954                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2474 ; 0.035 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3395 ; 2.519 ; 2.015       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   320 ; 6.663 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   105 ;36.565 ;25.238       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   349 ;12.811 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    10 ;20.527 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   371 ; 0.239 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1943 ; 0.017 ; 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):  1595 ; 1.488 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2563 ; 2.392 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   879 ; 3.641 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   831 ; 5.516 ; 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  : NULL                                       
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                                                           
REMARK   4                                                                      
REMARK   4 4FCN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-JUN-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000072734.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-APR-07                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-2                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.933                              
REMARK 200  MONOCHROMATOR                  : DIAMOND (111)                      
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4R                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 48216                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 48.170                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 4.200                              
REMARK 200  R MERGE                    (I) : 0.08300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.9000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.79                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.49500                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.000                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: 2VKA                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 64.19                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.44                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.4 M AMMONIUM SULFATE, 0.1 M SODIUM     
REMARK 280  CACODILATE AND 2% 1,3-PROPANEDIOL, PH 5.0, VAPOR DIFFUSION,         
REMARK 280  SITTING DROP, TEMPERATURE 295K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 41                             
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       3555   -Y,X+1/2,Z+1/4                                          
REMARK 290       4555   Y+1/2,-X,Z+3/4                                          
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X,-Y,Z                                                 
REMARK 290       7555   -Y+1/2,X,Z+3/4                                          
REMARK 290       8555   Y,-X+1/2,Z+1/4                                          
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       48.16900            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000       48.16900            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       49.47150            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       48.16900            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       24.73575            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       48.16900            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       74.20725            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       48.16900            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       48.16900            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       49.47150            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   7  0.000000 -1.000000  0.000000       48.16900            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       74.20725            
REMARK 290   SMTRY1   8  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000       48.16900            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       24.73575            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: 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 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     ASP A 318    CG   OD1  OD2                                       
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    HOH A   691     O    HOH A   759              2.14            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   756     O    HOH A   756     6555     2.14            
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    ALA A  12   CA    ALA A  12   CB      0.150                       
REMARK 500    GLU A  37   CD    GLU A  37   OE1     0.066                       
REMARK 500    GLU A 161   CD    GLU A 161   OE2    -0.069                       
REMARK 500    CYS A 242   CB    CYS A 242   SG      0.162                       
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  43   NE  -  CZ  -  NH1 ANGL. DEV. =  -4.4 DEGREES          
REMARK 500    ARG A  43   NE  -  CZ  -  NH2 ANGL. DEV. =   3.8 DEGREES          
REMARK 500    ASP A 135   CB  -  CG  -  OD1 ANGL. DEV. =   6.7 DEGREES          
REMARK 500    ASP A 135   CB  -  CG  -  OD2 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500    ASP A 187   CB  -  CG  -  OD1 ANGL. DEV. =   8.9 DEGREES          
REMARK 500    ARG A 227   NE  -  CZ  -  NH1 ANGL. DEV. =   4.9 DEGREES          
REMARK 500    ARG A 236   NE  -  CZ  -  NH2 ANGL. DEV. =   3.0 DEGREES          
REMARK 500    ARG A 257   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500    ARG A 257   NE  -  CZ  -  NH1 ANGL. DEV. =   4.4 DEGREES          
REMARK 500    ASP A 280   CB  -  CG  -  OD1 ANGL. DEV. =   6.4 DEGREES          
REMARK 500    LEU A 300   CB  -  CG  -  CD1 ANGL. DEV. = -10.6 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    ASN A  96       56.02   -112.28                                   
REMARK 500    ALA A 317      -73.48   -146.70                                   
REMARK 500    ASP A 318       68.93   -106.59                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ASP A  318     PRO A  319                  135.30                    
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 A 402  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  48   OD1                                                    
REMARK 620 2 ASP A  48   O    80.6                                              
REMARK 620 3 GLY A  60   O    94.7  69.6                                        
REMARK 620 4 ASP A  62   OD1  85.4 138.3  72.7                                  
REMARK 620 5 SER A  64   OG   91.9 142.3 148.1  76.8                            
REMARK 620 6 HOH A 520   O   167.6 104.9  97.7  97.1  76.9                      
REMARK 620 7 HOH A 548   O    88.5  69.9 138.2 149.0  73.0  83.1                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM A 403  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 169   NE2                                                    
REMARK 620 2 HEM A 403   NA   98.2                                              
REMARK 620 3 HEM A 403   NB   98.0  90.7                                        
REMARK 620 4 HEM A 403   NC  101.0 160.8  87.7                                  
REMARK 620 5 HEM A 403   ND   99.4  87.1 162.6  88.7                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 401  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER A 170   O                                                      
REMARK 620 2 SER A 170   OG   73.9                                              
REMARK 620 3 ASP A 187   OD2  91.0  75.7                                        
REMARK 620 4 ASP A 187   OD1  79.7 118.0  49.5                                  
REMARK 620 5 THR A 189   O    81.4 148.5 124.7  75.3                            
REMARK 620 6 THR A 189   OG1 146.7 139.1  93.9  78.7  68.8                      
REMARK 620 7 VAL A 192   O    84.3  81.5 157.1 149.5  76.8 102.3                
REMARK 620 8 ASP A 194   OD1 141.6  68.6  87.5 125.3 129.5  71.6  82.5          
REMARK 620 N                    1     2     3     4     5     6     7           
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 401                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 402                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 403                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 404                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4FCN   RELATED DB: PDB                                   
REMARK 900 THE SAME PROTEIN MUTATED AT POSITIONS 140 AND 176 BY GLYCINES        
REMARK 900 (E140G/K176G)                                                        
REMARK 900 RELATED ID: 4FDQ   RELATED DB: PDB                                   
REMARK 900 THE SAME PROTEIN MUTATED AT POSITION 1S40 BY A GLYCINE (E140G)       
REMARK 900 RELATED ID: 4FEF   RELATED DB: PDB                                   
REMARK 900 THE SAME PROTEIN MUTATED AT POSITION 141 BY A GLYCINE (P141G)        
DBREF  4FCN A    1   319  UNP    O94753   VPL2_PLEER      31    349             
SEQADV 4FCN GLY A  140  UNP  O94753    GLU   170 ENGINEERED MUTATION            
SEQADV 4FCN GLY A  176  UNP  O94753    LYS   206 ENGINEERED MUTATION            
SEQADV 4FCN GLU A  191  UNP  O94753    GLY   221 ENGINEERED MUTATION            
SEQRES   1 A  319  ALA THR CYS ASP ASP GLY ARG THR THR ALA ASN ALA ALA          
SEQRES   2 A  319  CYS CYS ILE LEU PHE PRO ILE LEU ASP ASP ILE GLN GLU          
SEQRES   3 A  319  ASN LEU PHE ASP GLY ALA GLN CYS GLY GLU GLU VAL HIS          
SEQRES   4 A  319  GLU SER LEU ARG LEU THR PHE HIS ASP ALA ILE GLY PHE          
SEQRES   5 A  319  SER PRO THR LEU GLY GLY GLY GLY ALA ASP GLY SER ILE          
SEQRES   6 A  319  ILE ALA PHE ASP THR ILE GLU THR ASN PHE PRO ALA ASN          
SEQRES   7 A  319  ALA GLY ILE ASP GLU ILE VAL SER ALA GLN LYS PRO PHE          
SEQRES   8 A  319  VAL ALA LYS HIS ASN ILE SER ALA GLY ASP PHE ILE GLN          
SEQRES   9 A  319  PHE ALA GLY ALA VAL GLY VAL SER ASN CYS PRO GLY GLY          
SEQRES  10 A  319  VAL ARG ILE PRO PHE PHE LEU GLY ARG PRO ASP ALA VAL          
SEQRES  11 A  319  ALA ALA SER PRO ASP HIS LEU VAL PRO GLY PRO PHE ASP          
SEQRES  12 A  319  SER VAL ASP SER ILE LEU ALA ARG MET GLY ASP ALA GLY          
SEQRES  13 A  319  PHE SER PRO VAL GLU VAL VAL TRP LEU LEU ALA SER HIS          
SEQRES  14 A  319  SER ILE ALA ALA ALA ASP GLY VAL ASP PRO SER ILE PRO          
SEQRES  15 A  319  GLY THR PRO PHE ASP SER THR PRO GLU VAL PHE ASP SER          
SEQRES  16 A  319  GLN PHE PHE ILE GLU THR GLN LEU LYS GLY ARG LEU PHE          
SEQRES  17 A  319  PRO GLY THR ALA ASP ASN LYS GLY GLU ALA GLN SER PRO          
SEQRES  18 A  319  LEU GLN GLY GLU ILE ARG LEU GLN SER ASP HIS LEU LEU          
SEQRES  19 A  319  ALA ARG ASP PRO GLN THR ALA CYS GLU TRP GLN SER MET          
SEQRES  20 A  319  VAL ASN ASN GLN PRO LYS ILE GLN ASN ARG PHE ALA ALA          
SEQRES  21 A  319  THR MET SER LYS MET ALA LEU LEU GLY GLN ASP LYS THR          
SEQRES  22 A  319  LYS LEU ILE ASP CYS SER ASP VAL ILE PRO THR PRO PRO          
SEQRES  23 A  319  ALA LEU VAL GLY ALA ALA HIS LEU PRO ALA GLY PHE SER          
SEQRES  24 A  319  LEU SER ASP VAL GLU GLN ALA CYS ALA ALA THR PRO PHE          
SEQRES  25 A  319  PRO ALA LEU THR ALA ASP PRO                                  
HET     CA  A 401       1                                                       
HET     CA  A 402       1                                                       
HET    HEM  A 403      43                                                       
HET    SO4  A 404       5                                                       
HETNAM      CA CALCIUM ION                                                      
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     SO4 SULFATE ION                                                      
HETSYN     HEM HEME                                                             
FORMUL   2   CA    2(CA 2+)                                                     
FORMUL   4  HEM    C34 H32 FE N4 O4                                             
FORMUL   5  SO4    O4 S 2-                                                      
FORMUL   6  HOH   *349(H2 O)                                                    
HELIX    1   1 ASN A   11  CYS A   15  5                                   5    
HELIX    2   2 ILE A   16  LEU A   28  1                                  13    
HELIX    3   3 GLY A   35  ILE A   50  1                                  16    
HELIX    4   4 GLY A   63  PHE A   68  1                                   6    
HELIX    5   5 PHE A   68  THR A   73  1                                   6    
HELIX    6   6 ASN A   74  ALA A   79  5                                   6    
HELIX    7   7 ILE A   81  HIS A   95  1                                  15    
HELIX    8   8 SER A   98  ASN A  113  1                                  16    
HELIX    9   9 SER A  144  GLY A  156  1                                  13    
HELIX   10  10 SER A  158  LEU A  166  1                                   9    
HELIX   11  11 ALA A  167  ILE A  171  5                                   5    
HELIX   12  12 SER A  195  THR A  201  1                                   7    
HELIX   13  13 GLN A  229  ALA A  235  1                                   7    
HELIX   14  14 THR A  240  MET A  247  1                                   8    
HELIX   15  15 ASN A  250  LEU A  267  1                                  18    
HELIX   16  16 ASP A  271  LEU A  275  5                                   5    
HELIX   17  17 SER A  279  ILE A  282  5                                   4    
HELIX   18  18 SER A  299  VAL A  303  5                                   5    
SHEET    1   A 2 PHE A 123  LEU A 124  0                                        
SHEET    2   A 2 ILE A 276  ASP A 277 -1  O  ILE A 276   N  LEU A 124           
SHEET    1   B 2 ALA A 173  ALA A 174  0                                        
SHEET    2   B 2 THR A 184  PRO A 185 -1  O  THR A 184   N  ALA A 174           
SHEET    1   C 2 GLU A 217  ALA A 218  0                                        
SHEET    2   C 2 ARG A 227  LEU A 228 -1  O  ARG A 227   N  ALA A 218           
SSBOND   1 CYS A    3    CYS A   15                          1555   1555  2.07  
SSBOND   2 CYS A   14    CYS A  278                          1555   1555  2.07  
SSBOND   3 CYS A   34    CYS A  114                          1555   1555  2.07  
SSBOND   4 CYS A  242    CYS A  307                          1555   1555  2.21  
LINK         OD1 ASP A  48                CA    CA A 402     1555   1555  2.37  
LINK         O   ASP A  48                CA    CA A 402     1555   1555  2.47  
LINK         O   GLY A  60                CA    CA A 402     1555   1555  2.39  
LINK         OD1 ASP A  62                CA    CA A 402     1555   1555  2.42  
LINK         OG  SER A  64                CA    CA A 402     1555   1555  2.41  
LINK         NE2 HIS A 169                FE   HEM A 403     1555   1555  2.13  
LINK         O   SER A 170                CA    CA A 401     1555   1555  2.36  
LINK         OG  SER A 170                CA    CA A 401     1555   1555  2.45  
LINK         OD2 ASP A 187                CA    CA A 401     1555   1555  2.44  
LINK         OD1 ASP A 187                CA    CA A 401     1555   1555  2.65  
LINK         O   THR A 189                CA    CA A 401     1555   1555  2.40  
LINK         OG1 THR A 189                CA    CA A 401     1555   1555  2.50  
LINK         O   VAL A 192                CA    CA A 401     1555   1555  2.44  
LINK         OD1 ASP A 194                CA    CA A 401     1555   1555  2.46  
LINK        CA    CA A 402                 O   HOH A 520     1555   1555  2.37  
LINK        CA    CA A 402                 O   HOH A 548     1555   1555  2.48  
SITE     1 AC1  5 SER A 170  ASP A 187  THR A 189  VAL A 192                    
SITE     2 AC1  5 ASP A 194                                                     
SITE     1 AC2  6 ASP A  48  GLY A  60  ASP A  62  SER A  64                    
SITE     2 AC2  6 HOH A 520  HOH A 548                                          
SITE     1 AC3 26 GLU A  36  HIS A  39  GLU A  40  LEU A  42                    
SITE     2 AC3 26 ARG A  43  PHE A  46  GLY A 140  PRO A 141                    
SITE     3 AC3 26 LEU A 165  LEU A 166  SER A 168  HIS A 169                    
SITE     4 AC3 26 ALA A 172  ALA A 173  ALA A 174  ASP A 175                    
SITE     5 AC3 26 GLY A 176  VAL A 177  PHE A 186  LEU A 228                    
SITE     6 AC3 26 SER A 230  HOH A 597  HOH A 623  HOH A 645                    
SITE     7 AC3 26 HOH A 649  HOH A 734                                          
SITE     1 AC4 10 HIS A 136  PHE A 142  ARG A 206  HOH A 565                    
SITE     2 AC4 10 HOH A 577  HOH A 754  HOH A 763  HOH A 802                    
SITE     3 AC4 10 HOH A 840  HOH A 841                                          
CRYST1   96.338   96.338   98.943  90.00  90.00  90.00 I 41          8          
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      0.010380  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010380  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010107        0.00000