HEADER    OXIDOREDUCTASE                          05-JUN-98   1RXG              
TITLE     DEACETOXYCEPHALOSPORIN C SYNTHASE COMPLEXED WITH FE(II) AND 2-        
TITLE    2 OXOGLUTARATE                                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DEACETOXYCEPHALOSPORIN C SYNTHASE;                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: RING EXPANDING ENZYME, RING EXPANDASE;                      
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STREPTOMYCES CLAVULIGERUS;                      
SOURCE   3 ORGANISM_TAXID: 1901;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: PET;                                       
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PET;                                  
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET 11A                                   
KEYWDS    FERROUS OXYGENASE, CEPHALOSPORIN, 2-OXOGLUTARATE, ANTIBIOTICS,        
KEYWDS   2 MEROHEDRAL TWINNING, OXIDOREDUCTASE                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.VALEGARD,A.C.TERWISSCHA VAN SCHELTINGA,M.D.LLOYD,T.HARA,            
AUTHOR   2 S.RAMASWAMY,A.PERRAKIS,A.THOMPSON,H.J.LEE,J.E.BALDWIN,C.J.SHOFIELD,  
AUTHOR   3 J.HAJDU,I.ANDERSSON                                                  
REVDAT   7   14-FEB-24 1RXG    1       REMARK                                   
REVDAT   6   10-MAR-21 1RXG    1       REMARK LINK                              
REVDAT   5   07-MAR-18 1RXG    1       REMARK                                   
REVDAT   4   13-JUL-11 1RXG    1       VERSN                                    
REVDAT   3   24-FEB-09 1RXG    1       VERSN                                    
REVDAT   2   01-APR-03 1RXG    1       JRNL                                     
REVDAT   1   08-JUN-99 1RXG    0                                                
JRNL        AUTH   K.VALEGARD,A.C.VAN SCHELTINGA,M.D.LLOYD,T.HARA,S.RAMASWAMY,  
JRNL        AUTH 2 A.PERRAKIS,A.THOMPSON,H.J.LEE,J.E.BALDWIN,C.J.SCHOFIELD,     
JRNL        AUTH 3 J.HAJDU,I.ANDERSSON                                          
JRNL        TITL   STRUCTURE OF A CEPHALOSPORIN SYNTHASE.                       
JRNL        REF    NATURE                        V. 394   805 1998              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   9723623                                                      
JRNL        DOI    10.1038/29575                                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   N.MORGAN,I.A.C.PEREIRA,I.ANDERSSON,R.M.ADLINGTON,            
REMARK   1  AUTH 2 J.E.BALDWIN,S.E.COLE,N.P.CROUCH,J.D.SUTHERLAND               
REMARK   1  TITL   SUBSTRATE SPECIFICITY OF RECOMBINANT STREPTOMYCES            
REMARK   1  TITL 2 CLAVULIGERUS DEACETOXYCEPHALOSPORIN C SYNTHASE               
REMARK   1  REF    BIOORG.MED.CHEM.LETT.         V.   4  1595 1994              
REMARK   1  REFN                   ISSN 0960-894X                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : SHELXL-97                                            
REMARK   3   AUTHORS     : G.M.SHELDRICK                                        
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.6                           
REMARK   3   CROSS-VALIDATION METHOD           : FREE R-VALUE                   
REMARK   3   FREE R VALUE TEST SET SELECTION   : RANDOM                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (NO CUTOFF).                         
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.125                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.156                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 2.000                  
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 910                    
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 48010                  
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F).                     
REMARK   3   R VALUE   (WORKING + TEST SET, F>4SIG(F)) : NULL                   
REMARK   3   R VALUE          (WORKING SET, F>4SIG(F)) : 0.121                  
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : 0.152                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 2.000                  
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : 849                    
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : 44754                  
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS      : 2157                                          
REMARK   3   NUCLEIC ACID ATOMS : 0                                             
REMARK   3   HETEROGEN ATOMS    : 16                                            
REMARK   3   SOLVENT ATOMS      : 297                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : 2363.3                  
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : 2072.0                  
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : 2                       
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : 20351                   
REMARK   3   NUMBER OF RESTRAINTS                     : 25242                   
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.009                   
REMARK   3   ANGLE DISTANCES                      (A) : 0.027                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL                    
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : 0.362                   
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : 0.048                   
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : 0.059                   
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : 0.038                   
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : 0.003                   
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : 0.053                   
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : NULL                    
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED: MOEWS & KRETSINGER                                    
REMARK   3                                                                      
REMARK   3  STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER                      
REMARK   3   SPECIAL CASE: NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: REFINED AGAINST MEROHEDRALLY TWINNED      
REMARK   3  INTENSITIES                                                         
REMARK   4                                                                      
REMARK   4 1RXG 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_1000176266.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : JAN-98                             
REMARK 200  TEMPERATURE           (KELVIN) : 90                                 
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : MAX II                             
REMARK 200  BEAMLINE                       : I711                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.80                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
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   : 42718                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 16.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.6                               
REMARK 200  DATA REDUNDANCY                : 3.800                              
REMARK 200  R MERGE                    (I) : 0.05400                            
REMARK 200  R SYM                      (I) : 0.05400                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.53                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.60                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.25600                            
REMARK 200  R SYM FOR SHELL            (I) : 0.25600                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.000                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIR                          
REMARK 200 SOFTWARE USED: SHELXL-97                                             
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 54.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.0                                   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       5555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       6555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290       7555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290       8555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290       9555   -X+Y+1/3,-X+2/3,Z+2/3                                   
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       53.85000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       31.09031            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       23.66667            
REMARK 290   SMTRY1   5 -0.500000 -0.866025  0.000000       53.85000            
REMARK 290   SMTRY2   5  0.866025 -0.500000  0.000000       31.09031            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       23.66667            
REMARK 290   SMTRY1   6 -0.500000  0.866025  0.000000       53.85000            
REMARK 290   SMTRY2   6 -0.866025 -0.500000  0.000000       31.09031            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       23.66667            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       62.18062            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       47.33333            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       62.18062            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       47.33333            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       62.18062            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       47.33333            
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: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 10570 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 30130 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -105.0 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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 668  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 694  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 706  LIES ON A SPECIAL POSITION.                          
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     GLU A    83                                                      
REMARK 465     SER A    84                                                      
REMARK 465     THR A    85                                                      
REMARK 465     ALA A    86                                                      
REMARK 465     GLN A    87                                                      
REMARK 465     ILE A    88                                                      
REMARK 465     THR A    89                                                      
REMARK 465     ASN A    90                                                      
REMARK 465     GLN A   166                                                      
REMARK 465     VAL A   167                                                      
REMARK 465     PRO A   168                                                      
REMARK 465     GLU A   169                                                      
REMARK 465     HIS A   170                                                      
REMARK 465     ARG A   171                                                      
REMARK 465     SER A   172                                                      
REMARK 465     ALA A   173                                                      
REMARK 465     GLU A   174                                                      
REMARK 465     GLU A   175                                                      
REMARK 465     GLN A   176                                                      
REMARK 465     PRO A   177                                                      
REMARK 465     PRO A   196                                                      
REMARK 465     CYS A   197                                                      
REMARK 465     ALA A   198                                                      
REMARK 465     ASN A   199                                                      
REMARK 465     GLY A   200                                                      
REMARK 465     PRO A   248                                                      
REMARK 465     ARG A   249                                                      
REMARK 465     ARG A   250                                                      
REMARK 465     ASP A   251                                                      
REMARK 465     GLN A   252                                                      
REMARK 465     ILE A   253                                                      
REMARK 465     ALA A   254                                                      
REMARK 465     GLY A   255                                                      
REMARK 465     SER A   256                                                      
REMARK 465     LYS A   310                                                      
REMARK 465     ALA A   311                                                      
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     LYS A  45    CG   CD   CE   NZ                                   
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  23   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.6 DEGREES          
REMARK 500    TYR A  94   CB  -  CG  -  CD2 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500    TYR A  94   CB  -  CG  -  CD1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500    TYR A 101   CB  -  CG  -  CD2 ANGL. DEV. =   4.2 DEGREES          
REMARK 500    ARG A 139   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.3 DEGREES          
REMARK 500    ARG A 160   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    ASP A 185   CB  -  CG  -  OD1 ANGL. DEV. =   6.0 DEGREES          
REMARK 500    ARG A 258   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500    ARG A 279   CD  -  NE  -  CZ  ANGL. DEV. =   8.6 DEGREES          
REMARK 500    ARG A 279   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ARG A 279   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.4 DEGREES          
REMARK 500    GLN A 295   O   -  C   -  N   ANGL. DEV. = -10.0 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    CYS A 155     -141.34   -134.02                                   
REMARK 500    SER A 286       63.25   -119.53                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 637        DISTANCE =  6.62 ANGSTROMS                       
REMARK 525    HOH A 683        DISTANCE =  6.88 ANGSTROMS                       
REMARK 525    HOH A 745        DISTANCE =  6.28 ANGSTROMS                       
REMARK 525    HOH A 784        DISTANCE =  6.61 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              FE A 312  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 183   NE2                                                    
REMARK 620 2 ASP A 185   OD1  97.6                                              
REMARK 620 3 HIS A 243   NE2  86.1  92.6                                        
REMARK 620 4 AKG A 313   O2   98.6 103.5 162.4                                  
REMARK 620 5 AKG A 313   O5   94.6 167.4  91.3  71.4                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE A 312                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE AKG A 313                 
DBREF  1RXG A    1   311  UNP    P18548   CEFE_STRCL       1    311             
SEQRES   1 A  311  MET ASP THR THR VAL PRO THR PHE SER LEU ALA GLU LEU          
SEQRES   2 A  311  GLN GLN GLY LEU HIS GLN ASP GLU PHE ARG ARG CYS LEU          
SEQRES   3 A  311  ARG ASP LYS GLY LEU PHE TYR LEU THR ASP CYS GLY LEU          
SEQRES   4 A  311  THR ASP THR GLU LEU LYS SER ALA LYS ASP LEU VAL ILE          
SEQRES   5 A  311  ASP PHE PHE GLU HIS GLY SER GLU ALA GLU LYS ARG ALA          
SEQRES   6 A  311  VAL THR SER PRO VAL PRO THR MET ARG ARG GLY PHE THR          
SEQRES   7 A  311  GLY LEU GLU SER GLU SER THR ALA GLN ILE THR ASN THR          
SEQRES   8 A  311  GLY SER TYR SER ASP TYR SER MET CYS TYR SER MET GLY          
SEQRES   9 A  311  THR ALA ASP ASN LEU PHE PRO SER GLY ASP PHE GLU ARG          
SEQRES  10 A  311  ILE TRP THR GLN TYR PHE ASP ARG GLN TYR THR ALA SER          
SEQRES  11 A  311  ARG ALA VAL ALA ARG GLU VAL LEU ARG ALA THR GLY THR          
SEQRES  12 A  311  GLU PRO ASP GLY GLY VAL GLU ALA PHE LEU ASP CYS GLU          
SEQRES  13 A  311  PRO LEU LEU ARG PHE ARG TYR PHE PRO GLN VAL PRO GLU          
SEQRES  14 A  311  HIS ARG SER ALA GLU GLU GLN PRO LEU ARG MET ALA PRO          
SEQRES  15 A  311  HIS TYR ASP LEU SER MET VAL THR LEU ILE GLN GLN THR          
SEQRES  16 A  311  PRO CYS ALA ASN GLY PHE VAL SER LEU GLN ALA GLU VAL          
SEQRES  17 A  311  GLY GLY ALA PHE THR ASP LEU PRO TYR ARG PRO ASP ALA          
SEQRES  18 A  311  VAL LEU VAL PHE CYS GLY ALA ILE ALA THR LEU VAL THR          
SEQRES  19 A  311  GLY GLY GLN VAL LYS ALA PRO ARG HIS HIS VAL ALA ALA          
SEQRES  20 A  311  PRO ARG ARG ASP GLN ILE ALA GLY SER SER ARG THR SER          
SEQRES  21 A  311  SER VAL PHE PHE LEU ARG PRO ASN ALA ASP PHE THR PHE          
SEQRES  22 A  311  SER VAL PRO LEU ALA ARG GLU CYS GLY PHE ASP VAL SER          
SEQRES  23 A  311  LEU ASP GLY GLU THR ALA THR PHE GLN ASP TRP ILE GLY          
SEQRES  24 A  311  GLY ASN TYR VAL ASN ILE ARG ARG THR SER LYS ALA              
HET     FE  A 312       1                                                       
HET    SO4  A 401       5                                                       
HET    AKG  A 313      10                                                       
HETNAM      FE FE (III) ION                                                     
HETNAM     SO4 SULFATE ION                                                      
HETNAM     AKG 2-OXOGLUTARIC ACID                                               
FORMUL   2   FE    FE 3+                                                        
FORMUL   3  SO4    O4 S 2-                                                      
FORMUL   4  AKG    C5 H6 O5                                                     
FORMUL   5  HOH   *297(H2 O)                                                    
HELIX    1   1 LEU A   10  GLN A   15  1                                   6    
HELIX    2   2 GLN A   19  ASP A   28  1                                  10    
HELIX    3   3 ASP A   41  HIS A   57  1                                  17    
HELIX    4   4 GLU A   60  VAL A   66  1                                   7    
HELIX    5   5 TYR A   94  ASP A   96  5                                   3    
HELIX    6   6 GLY A  113  ALA A  140  1                                  28    
HELIX    7   7 VAL A  149  LEU A  153  1                                   5    
HELIX    8   8 ALA A  228  VAL A  233  1                                   6    
HELIX    9   9 VAL A  275  CYS A  281  1                                   7    
HELIX   10  10 PHE A  294  ILE A  298  1                                   5    
SHEET    1   A 8 THR A   7  SER A   9  0                                        
SHEET    2   A 8 LEU A  31  THR A  35  1  N  TYR A  33   O  PHE A   8           
SHEET    3   A 8 VAL A 222  CYS A 226 -1  N  VAL A 224   O  PHE A  32           
SHEET    4   A 8 VAL A 189  THR A 195 -1  N  ILE A 192   O  LEU A 223           
SHEET    5   A 8 ARG A 258  LEU A 265 -1  N  LEU A 265   O  VAL A 189           
SHEET    6   A 8 LEU A 158  PHE A 164 -1  N  PHE A 164   O  ARG A 258           
SHEET    7   A 8 SER A  98  MET A 103 -1  N  MET A 103   O  LEU A 159           
SHEET    8   A 8 GLY A  76  LEU A  80 -1  N  LEU A  80   O  SER A  98           
SHEET    1   B 3 HIS A 243  VAL A 245  0                                        
SHEET    2   B 3 LEU A 204  VAL A 208 -1  N  GLN A 205   O  HIS A 244           
SHEET    3   B 3 ALA A 211  ASP A 214 -1  N  THR A 213   O  ALA A 206           
SHEET    1   C 2 THR A 272  SER A 274  0                                        
SHEET    2   C 2 THR A 291  THR A 293 -1  N  ALA A 292   O  PHE A 273           
LINK         NE2 HIS A 183                FE    FE A 312     1555   1555  2.21  
LINK         OD1 ASP A 185                FE    FE A 312     1555   1555  2.07  
LINK         NE2 HIS A 243                FE    FE A 312     1555   1555  2.17  
LINK        FE    FE A 312                 O2  AKG A 313     1555   1555  2.07  
LINK        FE    FE A 312                 O5  AKG A 313     1555   1555  2.22  
SITE     1 AC1  5 HIS A 183  ASP A 185  HIS A 243  AKG A 313                    
SITE     2 AC1  5 HOH A 517                                                     
SITE     1 AC2  3 GLU A 290  THR A 291  HOH A 771                               
SITE     1 AC3  8 MET A 180  HIS A 183  ASP A 185  HIS A 243                    
SITE     2 AC3  8 ARG A 258  SER A 260   FE A 312  HOH A 517                    
CRYST1  107.700  107.700   71.000  90.00  90.00 120.00 H 3           9          
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      0.009285  0.005361  0.000000        0.00000                         
SCALE2      0.000000  0.010721  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014085        0.00000