HEADER    HALOPEROXIDASE                          27-MAR-98   1A8S              
TITLE     CHLOROPEROXIDASE F/PROPIONATE COMPLEX                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CHLOROPEROXIDASE F;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: HALOPEROXIDASE F;                                           
COMPND   5 EC: 1.11.1.10;                                                       
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PSEUDOMONAS FLUORESCENS;                        
SOURCE   3 ORGANISM_TAXID: 294;                                                 
SOURCE   4 STRAIN: BL914;                                                       
SOURCE   5 GENE: CPOF;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PSK12;                                    
SOURCE  10 EXPRESSION_SYSTEM_GENE: CPOF                                         
KEYWDS    HALOPEROXIDASE, OXIDOREDUCTASE, PROPIONATE COMPLEX                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.HOFMANN,S.TOELZER,I.PELLETIER,J.ALTENBUCHNER,K.-H.VAN PEE,H.-       
AUTHOR   2 J.HECHT                                                              
REVDAT   6   03-APR-24 1A8S    1       REMARK                                   
REVDAT   5   07-FEB-24 1A8S    1       REMARK                                   
REVDAT   4   13-JUL-11 1A8S    1       VERSN                                    
REVDAT   3   24-FEB-09 1A8S    1       VERSN                                    
REVDAT   2   01-APR-03 1A8S    1       JRNL                                     
REVDAT   1   17-JUN-98 1A8S    0                                                
JRNL        AUTH   B.HOFMANN,S.TOLZER,I.PELLETIER,J.ALTENBUCHNER,K.H.VAN PEE,   
JRNL        AUTH 2 H.J.HECHT                                                    
JRNL        TITL   STRUCTURAL INVESTIGATION OF THE COFACTOR-FREE                
JRNL        TITL 2 CHLOROPEROXIDASES.                                           
JRNL        REF    J.MOL.BIOL.                   V. 279   889 1998              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   9642069                                                      
JRNL        DOI    10.1006/JMBI.1998.1802                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 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  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 70.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 88.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 33363                          
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) : 0.173                           
REMARK   3   R VALUE            (WORKING SET) : 0.176                           
REMARK   3   FREE R VALUE                     : 0.205                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1668                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2085                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 25                                      
REMARK   3   SOLVENT ATOMS            : 335                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 18.38                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.57                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.017 ; 0.020               
REMARK   3    ANGLE DISTANCE                  (A) : 0.031 ; 0.040               
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.037 ; 0.050               
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : 0.024 ; 0.020               
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.154 ; 0.150               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : 0.173 ; 0.300               
REMARK   3    MULTIPLE TORSION                (A) : 0.195 ; 0.300               
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : 0.000 ; 15.000              
REMARK   3    PLANAR                    (DEGREES) : 4.000 ; 7.000               
REMARK   3    STAGGERED                 (DEGREES) : 14.900; 15.000              
REMARK   3    TRANSVERSE                (DEGREES) : 33.800; 20.000              
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.520 ; 2.000                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.880 ; 3.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.050 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.920 ; 3.000                
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1A8S COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000170535.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : OCT-97                             
REMARK 200  TEMPERATURE           (KELVIN) : 90                                 
REMARK 200  PH                             : 6.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : MPG/DESY, HAMBURG                  
REMARK 200  BEAMLINE                       : BW6                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1                                
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : MIRROR                             
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 33363                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 35.500                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 88.9                               
REMARK 200  DATA REDUNDANCY                : 2.000                              
REMARK 200  R MERGE                    (I) : 0.06900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.88                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 80.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 1.70                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.19700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 4.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CCP4                                                  
REMARK 200 STARTING MODEL: REFINED COORDINATES OF CHLOROPEROXIDASE L            
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 63.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.36                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.0 M AMMONIUM SULFATE 50MM              
REMARK 280  CITRATE/PHOSPHATE BUFFER PH 6.6                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 2 3                            
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   Z,X,Y                                                   
REMARK 290       6555   Z,-X,-Y                                                 
REMARK 290       7555   -Z,-X,Y                                                 
REMARK 290       8555   -Z,X,-Y                                                 
REMARK 290       9555   Y,Z,X                                                   
REMARK 290      10555   -Y,Z,-X                                                 
REMARK 290      11555   Y,-Z,-X                                                 
REMARK 290      12555   -Y,-Z,X                                                 
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        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY2   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   6  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY2   6 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY2   7 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY2   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   9  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   9  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY3   9  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  10  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  10  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY3  10 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY3  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  12  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY3  12  1.000000  0.000000  0.000000        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: MONOMERIC                         
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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DODECAMERIC                
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 31680 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 106890 ANGSTROM**2                      
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -758.0 KCAL/MOL                       
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 350   BIOMT1   2 -1.000000  0.000000  0.000000      106.47000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000      106.47000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -1.000000  0.000000  0.000000      106.47000            
REMARK 350   BIOMT2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000 -1.000000      106.47000            
REMARK 350   BIOMT1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   4  0.000000 -1.000000  0.000000      106.47000            
REMARK 350   BIOMT3   4  0.000000  0.000000 -1.000000      106.47000            
REMARK 350   BIOMT1   5  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT2   5  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   5  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT1   6  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT2   6 -1.000000  0.000000  0.000000      106.47000            
REMARK 350   BIOMT3   6  0.000000 -1.000000  0.000000      106.47000            
REMARK 350   BIOMT1   7  0.000000  0.000000 -1.000000      106.47000            
REMARK 350   BIOMT2   7 -1.000000  0.000000  0.000000      106.47000            
REMARK 350   BIOMT3   7  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT1   8  0.000000  0.000000 -1.000000      106.47000            
REMARK 350   BIOMT2   8  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   8  0.000000 -1.000000  0.000000      106.47000            
REMARK 350   BIOMT1   9  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   9  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT3   9  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT1  10  0.000000 -1.000000  0.000000      106.47000            
REMARK 350   BIOMT2  10  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT3  10 -1.000000  0.000000  0.000000      106.47000            
REMARK 350   BIOMT1  11  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT2  11  0.000000  0.000000 -1.000000      106.47000            
REMARK 350   BIOMT3  11 -1.000000  0.000000  0.000000      106.47000            
REMARK 350   BIOMT1  12  0.000000 -1.000000  0.000000      106.47000            
REMARK 350   BIOMT2  12  0.000000  0.000000 -1.000000      106.47000            
REMARK 350   BIOMT3  12  1.000000  0.000000  0.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PQS                                                   
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 350   BIOMT1   2  0.000000  0.000000 -1.000000      106.47000            
REMARK 350   BIOMT2   2 -1.000000  0.000000  0.000000      106.47000            
REMARK 350   BIOMT3   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT1   3  0.000000 -1.000000  0.000000      106.47000            
REMARK 350   BIOMT2   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT3   3 -1.000000  0.000000  0.000000      106.47000            
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   6   CD  -  NE  -  CZ  ANGL. DEV. =   9.4 DEGREES          
REMARK 500    ARG A   6   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.4 DEGREES          
REMARK 500    ARG A  54   NE  -  CZ  -  NH1 ANGL. DEV. =   9.3 DEGREES          
REMARK 500    ARG A  54   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500    ARG A  55   NE  -  CZ  -  NH1 ANGL. DEV. =  -3.7 DEGREES          
REMARK 500    ARG A  59   NE  -  CZ  -  NH1 ANGL. DEV. =   5.0 DEGREES          
REMARK 500    ARG A  59   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.1 DEGREES          
REMARK 500    ASP A  68   CB  -  CG  -  OD1 ANGL. DEV. =   6.9 DEGREES          
REMARK 500    ARG A 111   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.1 DEGREES          
REMARK 500    ARG A 151   NE  -  CZ  -  NH1 ANGL. DEV. =   3.8 DEGREES          
REMARK 500    ARG A 151   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.6 DEGREES          
REMARK 500    PHE A 200   CB  -  CG  -  CD1 ANGL. DEV. =   4.8 DEGREES          
REMARK 500    ASP A 213   CB  -  CG  -  OD1 ANGL. DEV. =   7.2 DEGREES          
REMARK 500    ASP A 222   CB  -  CG  -  OD1 ANGL. DEV. =   6.0 DEGREES          
REMARK 500    TYR A 248   CB  -  CG  -  CD2 ANGL. DEV. =  -3.7 DEGREES          
REMARK 500    TYR A 248   CB  -  CG  -  CD1 ANGL. DEV. =   4.2 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    PRO A  29       49.28    -96.15                                   
REMARK 500    LEU A  30     -153.06    -88.88                                   
REMARK 500    SER A  94     -118.09     58.96                                   
REMARK 500    ASP A 150       84.09   -166.69                                   
REMARK 500    SER A 232      -97.61   -129.99                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: NUL                                                 
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: CATALYTIC TRIAD.                                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 274                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 275                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 276                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 277                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PPI A 278                 
DBREF  1A8S A    1   273  UNP    O31158   PRXC_PSEFL       1    273             
SEQRES   1 A  273  THR THR PHE THR THR ARG ASP GLY THR GLN ILE TYR TYR          
SEQRES   2 A  273  LYS ASP TRP GLY SER GLY GLN PRO ILE VAL PHE SER HIS          
SEQRES   3 A  273  GLY TRP PRO LEU ASN ALA ASP SER TRP GLU SER GLN MET          
SEQRES   4 A  273  ILE PHE LEU ALA ALA GLN GLY TYR ARG VAL ILE ALA HIS          
SEQRES   5 A  273  ASP ARG ARG GLY HIS GLY ARG SER SER GLN PRO TRP SER          
SEQRES   6 A  273  GLY ASN ASP MET ASP THR TYR ALA ASP ASP LEU ALA GLN          
SEQRES   7 A  273  LEU ILE GLU HIS LEU ASP LEU ARG ASP ALA VAL LEU PHE          
SEQRES   8 A  273  GLY PHE SER THR GLY GLY GLY GLU VAL ALA ARG TYR ILE          
SEQRES   9 A  273  GLY ARG HIS GLY THR ALA ARG VAL ALA LYS ALA GLY LEU          
SEQRES  10 A  273  ILE SER ALA VAL PRO PRO LEU MET LEU LYS THR GLU ALA          
SEQRES  11 A  273  ASN PRO GLY GLY LEU PRO MET GLU VAL PHE ASP GLY ILE          
SEQRES  12 A  273  ARG GLN ALA SER LEU ALA ASP ARG SER GLN LEU TYR LYS          
SEQRES  13 A  273  ASP LEU ALA SER GLY PRO PHE PHE GLY PHE ASN GLN PRO          
SEQRES  14 A  273  GLY ALA LYS SER SER ALA GLY MET VAL ASP TRP PHE TRP          
SEQRES  15 A  273  LEU GLN GLY MET ALA ALA GLY HIS LYS ASN ALA TYR ASP          
SEQRES  16 A  273  CYS ILE LYS ALA PHE SER GLU THR ASP PHE THR GLU ASP          
SEQRES  17 A  273  LEU LYS LYS ILE ASP VAL PRO THR LEU VAL VAL HIS GLY          
SEQRES  18 A  273  ASP ALA ASP GLN VAL VAL PRO ILE GLU ALA SER GLY ILE          
SEQRES  19 A  273  ALA SER ALA ALA LEU VAL LYS GLY SER THR LEU LYS ILE          
SEQRES  20 A  273  TYR SER GLY ALA PRO HIS GLY LEU THR ASP THR HIS LYS          
SEQRES  21 A  273  ASP GLN LEU ASN ALA ASP LEU LEU ALA PHE ILE LYS GLY          
HET    SO4  A 274       5                                                       
HET    SO4  A 275       5                                                       
HET    SO4  A 276       5                                                       
HET    SO4  A 277       5                                                       
HET    PPI  A 278       5                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     PPI PROPANOIC ACID                                                   
FORMUL   2  SO4    4(O4 S 2-)                                                   
FORMUL   6  PPI    C3 H6 O2                                                     
FORMUL   7  HOH   *335(H2 O)                                                    
HELIX    1   1 ALA A   32  GLN A   45  5                                  14    
HELIX    2   2 MET A   69  HIS A   82  1                                  14    
HELIX    3   3 SER A   94  HIS A  107  5                                  14    
HELIX    4   4 MET A  137  SER A  160  1                                  24    
HELIX    5   5 ALA A  175  ALA A  187  1                                  13    
HELIX    6   6 HIS A  190  GLU A  202  1                                  13    
HELIX    7   7 THR A  206  LYS A  211  1                                   6    
HELIX    8   8 GLY A  233  LEU A  239  1                                   7    
HELIX    9   9 LEU A  255  THR A  258  1                                   4    
HELIX   10  10 LYS A  260  ILE A  271  1                                  12    
SHEET    1   A 2 THR A   2  THR A   4  0                                        
SHEET    2   A 2 GLN A  10  TYR A  12 -1  N  ILE A  11   O  PHE A   3           
SHEET    1   B 7 TYR A  13  TRP A  16  0                                        
SHEET    2   B 7 ARG A  48  HIS A  52 -1  N  ALA A  51   O  LYS A  14           
SHEET    3   B 7 PRO A  21  SER A  25  1  N  ILE A  22   O  ARG A  48           
SHEET    4   B 7 ALA A  88  PHE A  93  1  N  VAL A  89   O  VAL A  23           
SHEET    5   B 7 VAL A 112  ILE A 118  1  N  ALA A 113   O  ALA A  88           
SHEET    6   B 7 PRO A 215  GLY A 221  1  N  PRO A 215   O  ALA A 115           
SHEET    7   B 7 THR A 244  TYR A 248  1  N  THR A 244   O  VAL A 218           
CISPEP   1 TRP A   28    PRO A   29          0       -12.02                     
CISPEP   2 PRO A  122    PRO A  123          0         1.90                     
SITE     1 NUL  3 SER A  94  ASP A 224  HIS A 253                               
SITE     1 AC1  9 LYS A 241  GLY A 242  TYR A 248  SER A 249                    
SITE     2 AC1  9 GLN A 262  HOH A 349  HOH A 365  HOH A 374                    
SITE     3 AC1  9 HOH A 494                                                     
SITE     1 AC2  7 THR A   1  TYR A  12  SER A  61  GLN A  62                    
SITE     2 AC2  7 HOH A 285  HOH A 339  HOH A 580                               
SITE     1 AC3  3 THR A   1  THR A   2  HOH A 440                               
SITE     1 AC4  7 TRP A  16  GLY A  17  TRP A  64  ARG A  86                    
SITE     2 AC4  7 HOH A 297  HOH A 412  HOH A 497                               
SITE     1 AC5  7 TRP A  28  SER A  94  THR A  95  PHE A 163                    
SITE     2 AC5  7 PHE A 200  HIS A 253  HOH A 607                               
CRYST1  106.470  106.470  106.470  90.00  90.00  90.00 P 2 3        12          
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      0.009392  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009392  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009392        0.00000