HEADER    OXIDOREDUCTASE                          10-MAY-13   4BMT              
TITLE     CRYSTAL STRUCTURE OF RIBONUCLEOTIDE REDUCTASE DI-IRON NRDF FROM       
TITLE    2 BACILLUS CEREUS                                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE SUBUNIT BETA;         
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: RIBONUCLEOTIDE REDUCTASE DI-IRON NRDF;                      
COMPND   5 EC: 1.17.4.1;                                                        
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BACILLUS CEREUS;                                
SOURCE   3 ORGANISM_TAXID: 1396;                                                
SOURCE   4 ATCC: 14579;                                                         
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    OXIDOREDUCTASE                                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.-P.HERSLETH,A.B.TOMTER,M.HAMMERSTAD,A.K.ROHR,K.K.ANDERSSON          
REVDAT   2   20-DEC-23 4BMT    1       REMARK LINK                              
REVDAT   1   19-MAR-14 4BMT    0                                                
JRNL        AUTH   M.HAMMERSTAD,H.HERSLETH,A.B.TOMTER,A.K.ROHR,K.K.ANDERSSON    
JRNL        TITL   CRYSTAL STRUCTURE OF BACILLUS CEREUS CLASS IB RIBONUCLEOTIDE 
JRNL        TITL 2 REDUCTASE DI-IRON NRDF IN COMPLEX WITH NRDI.                 
JRNL        REF    ACS CHEM.BIOL.                V.   9   526 2014              
JRNL        REFN                   ISSN 1554-8929                               
JRNL        PMID   24295378                                                     
JRNL        DOI    10.1021/CB400757H                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.7.0032                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 47.11                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 88.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 28225                          
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) : 0.212                           
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.260                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1498                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.10                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.16                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1980                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 83.99                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2260                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 103                          
REMARK   3   BIN FREE R VALUE                    : 0.2590                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4650                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 4                                       
REMARK   3   SOLVENT ATOMS            : 61                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 19.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.74000                                              
REMARK   3    B22 (A**2) : 0.16000                                              
REMARK   3    B33 (A**2) : -0.60000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.58000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.334         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.238         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.149         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.440         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.923                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.873                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4785 ; 0.017 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  4579 ; 0.006 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  6481 ; 1.782 ; 1.962       
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 10566 ; 1.332 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   588 ; 5.924 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   233 ;43.065 ;25.622       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   884 ;18.997 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    14 ;23.083 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   723 ; 0.129 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  5392 ; 0.009 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  1074 ; 0.005 ; 0.020       
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):  2310 ; 1.565 ; 1.795       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  2309 ; 1.563 ; 1.795       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2888 ; 2.382 ; 2.682       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2475 ; 2.221 ; 2.062       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NCS TYPE: LOCAL                                                    
REMARK   3   NUMBER OF DIFFERENT NCS PAIRS  : 1                                 
REMARK   3  GROUP  CHAIN1    RANGE     CHAIN2     RANGE    COUNT RMS  WEIGHT    
REMARK   3    1     A     1    287       B     1    287   17033  0.15  0.05     
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   : 1.20                                          
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 4BMT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 10-MAY-13.                  
REMARK 100 THE DEPOSITION ID IS D_1290056809.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-APR-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID29                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9724                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : AIMLESS                            
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 29742                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 47.100                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 6.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 88.7                               
REMARK 200  DATA REDUNDANCY                : 2.800                              
REMARK 200  R MERGE                    (I) : 0.10000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 5.7000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.17                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 84.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.70                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.30000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.700                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: PDB ENTRY 4BMQ                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M MG-FORMATE, 20% (W/V) PEG 3350,    
REMARK 280  AND 0.1 M HEPES, PH 7.5                                             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y+1/2,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       24.64500            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4690 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 21780 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -63.3 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     ARG A   288                                                      
REMARK 465     THR A   289                                                      
REMARK 465     ASP A   290                                                      
REMARK 465     THR A   291                                                      
REMARK 465     LYS A   292                                                      
REMARK 465     ASN A   293                                                      
REMARK 465     HIS A   294                                                      
REMARK 465     ASP A   295                                                      
REMARK 465     PHE A   296                                                      
REMARK 465     PHE A   297                                                      
REMARK 465     SER A   298                                                      
REMARK 465     VAL A   299                                                      
REMARK 465     LYS A   300                                                      
REMARK 465     GLY A   301                                                      
REMARK 465     ASN A   302                                                      
REMARK 465     GLY A   303                                                      
REMARK 465     TYR A   304                                                      
REMARK 465     VAL A   305                                                      
REMARK 465     LYS A   306                                                      
REMARK 465     ALA A   307                                                      
REMARK 465     THR A   308                                                      
REMARK 465     ASN A   309                                                      
REMARK 465     VAL A   310                                                      
REMARK 465     GLU A   311                                                      
REMARK 465     LYS A   312                                                      
REMARK 465     LEU A   313                                                      
REMARK 465     ALA A   314                                                      
REMARK 465     ASP A   315                                                      
REMARK 465     ASP A   316                                                      
REMARK 465     ASP A   317                                                      
REMARK 465     PHE A   318                                                      
REMARK 465     VAL A   319                                                      
REMARK 465     PHE A   320                                                      
REMARK 465     ASN A   321                                                      
REMARK 465     PHE A   322                                                      
REMARK 465     ARG B   288                                                      
REMARK 465     THR B   289                                                      
REMARK 465     ASP B   290                                                      
REMARK 465     THR B   291                                                      
REMARK 465     LYS B   292                                                      
REMARK 465     ASN B   293                                                      
REMARK 465     HIS B   294                                                      
REMARK 465     ASP B   295                                                      
REMARK 465     PHE B   296                                                      
REMARK 465     PHE B   297                                                      
REMARK 465     SER B   298                                                      
REMARK 465     VAL B   299                                                      
REMARK 465     LYS B   300                                                      
REMARK 465     GLY B   301                                                      
REMARK 465     ASN B   302                                                      
REMARK 465     GLY B   303                                                      
REMARK 465     TYR B   304                                                      
REMARK 465     VAL B   305                                                      
REMARK 465     LYS B   306                                                      
REMARK 465     ALA B   307                                                      
REMARK 465     THR B   308                                                      
REMARK 465     ASN B   309                                                      
REMARK 465     VAL B   310                                                      
REMARK 465     GLU B   311                                                      
REMARK 465     LYS B   312                                                      
REMARK 465     LEU B   313                                                      
REMARK 465     ALA B   314                                                      
REMARK 465     ASP B   315                                                      
REMARK 465     ASP B   316                                                      
REMARK 465     ASP B   317                                                      
REMARK 465     PHE B   318                                                      
REMARK 465     VAL B   319                                                      
REMARK 465     PHE B   320                                                      
REMARK 465     ASN B   321                                                      
REMARK 465     PHE B   322                                                      
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    PHE A  13      -15.67   -146.25                                   
REMARK 500    GLU A  68      -50.34   -130.38                                   
REMARK 500    TYR A 163      -63.69   -134.43                                   
REMARK 500    PHE B  13      -14.09   -147.68                                   
REMARK 500    GLU B  68      -50.47   -130.93                                   
REMARK 500    TYR B 163      -63.08   -140.64                                   
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                             FE2 A1323  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  62   OD1                                                    
REMARK 620 2 GLU A  93   OE1  81.4                                              
REMARK 620 3 HIS A  96   ND1 128.1 113.1                                        
REMARK 620 4 GLU A 195   OE2 141.2  81.0  90.7                                  
REMARK 620 5 HOH A2015   O   102.0 140.7  95.6  72.1                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FE2 A1324  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  93   OE2                                                    
REMARK 620 2 GLU A 161   OE2 104.0                                              
REMARK 620 3 GLU A 161   OE1 116.7  58.9                                        
REMARK 620 4 GLU A 195   OE1 160.1  95.2  77.7                                  
REMARK 620 5 GLU A 195   OE2  96.6 157.8 118.5  63.7                            
REMARK 620 6 HIS A 198   ND1  76.8  86.4 144.4  99.6  90.2                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FE2 B1323  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B  62   OD1                                                    
REMARK 620 2 GLU B  93   OE1  77.9                                              
REMARK 620 3 HIS B  96   ND1 115.1 102.4                                        
REMARK 620 4 GLU B 195   OE2 153.1  85.6  88.9                                  
REMARK 620 5 HOH B2010   O    88.4 149.5 108.1  95.6                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FE2 B1324  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU B  93   OE2                                                    
REMARK 620 2 GLU B 161   OE2 114.3                                              
REMARK 620 3 GLU B 195   OE2  94.4 151.0                                        
REMARK 620 4 GLU B 195   OE1 154.4  91.0  60.1                                  
REMARK 620 5 HIS B 198   ND1  77.5  94.0  87.6  97.9                            
REMARK 620 6 HOH B2011   O    94.7 101.6  79.5  83.2 164.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 1323                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 1324                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 B 1323                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 B 1324                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4BMQ   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEOTIDE REDUCTASE APO-NRDF FROM          
REMARK 900 BACILLUS CEREUS (SPACE GROUP C2)                                     
REMARK 900 RELATED ID: 4BMR   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEOTIDE REDUCTASE APO-NRDF FROM          
REMARK 900 BACILLUS CEREUS (SPACE GROUP P21)                                    
REMARK 900 RELATED ID: 4BMU   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEOTIDE REDUCTASE DI-MANGANESE (II)      
REMARK 900 NRDF FROM BACILLUS CEREUS                                            
DBREF  4BMT A    1   322  UNP    Q81G55   Q81G55_BACCR     1    322             
DBREF  4BMT B    1   322  UNP    Q81G55   Q81G55_BACCR     1    322             
SEQRES   1 A  322  MET ARG ALA VAL ASN TRP ASN LYS LYS GLU ASP ASP PHE          
SEQRES   2 A  322  SER LEU MET PHE TRP LYS GLN ASN ILE ALA GLN PHE TRP          
SEQRES   3 A  322  THR GLU GLU GLU ILE ALA VAL SER SER ASP LYS ASN THR          
SEQRES   4 A  322  TRP VAL GLN LEU SER LYS GLU GLU GLN ILE ALA TYR LYS          
SEQRES   5 A  322  ARG VAL LEU GLY GLY LEU THR LEU LEU ASP THR LYS GLN          
SEQRES   6 A  322  GLY GLY GLU GLY MET PRO LEU VAL LEU VAL HIS LEU GLU          
SEQRES   7 A  322  ASN LEU GLN ALA LYS SER VAL LEU ALA PHE MET GLY ALA          
SEQRES   8 A  322  MET GLU GLU VAL HIS ALA LYS SER TYR SER HIS ILE PHE          
SEQRES   9 A  322  THR THR LEU ALA THR GLU GLU GLU ILE ASP ASP ILE PHE          
SEQRES  10 A  322  ASP TRP VAL ASP ASN HIS PRO LEU LEU GLU LYS LYS ALA          
SEQRES  11 A  322  GLY ILE ILE THR SER TYR TYR ARG ARG LEU LEU LYS PRO          
SEQRES  12 A  322  GLU VAL THR LYS LYS GLU LEU TYR MET ALA MET VAL ALA          
SEQRES  13 A  322  SER VAL PHE LEU GLU SER TYR LEU PHE TYR SER GLY PHE          
SEQRES  14 A  322  PHE TYR PRO LEU TYR LEU ALA GLY GLN GLY LYS LEU THR          
SEQRES  15 A  322  ALA SER GLY GLU ILE ILE ASN LEU ILE ILE ARG ASP GLU          
SEQRES  16 A  322  SER ILE HIS GLY VAL PHE VAL GLY ILE LEU ALA GLN GLN          
SEQRES  17 A  322  ILE PHE ALA GLU LEU SER ALA GLU GLU GLN GLN GLU VAL          
SEQRES  18 A  322  GLN LYS GLU THR GLN GLU LEU LEU MET GLU LEU TYR GLU          
SEQRES  19 A  322  ILE GLU MET ALA TYR THR GLU GLU ILE TYR THR SER ILE          
SEQRES  20 A  322  GLY LEU VAL GLU ASP VAL ASN ARG PHE VAL ARG TYR ASN          
SEQRES  21 A  322  ALA ASN LYS GLY LEU MET ASN LEU GLY LEU GLU PRO LYS          
SEQRES  22 A  322  PHE GLU GLU GLU GLU ILE ASN PRO ILE VAL LEU ASN GLY          
SEQRES  23 A  322  LEU ARG THR ASP THR LYS ASN HIS ASP PHE PHE SER VAL          
SEQRES  24 A  322  LYS GLY ASN GLY TYR VAL LYS ALA THR ASN VAL GLU LYS          
SEQRES  25 A  322  LEU ALA ASP ASP ASP PHE VAL PHE ASN PHE                      
SEQRES   1 B  322  MET ARG ALA VAL ASN TRP ASN LYS LYS GLU ASP ASP PHE          
SEQRES   2 B  322  SER LEU MET PHE TRP LYS GLN ASN ILE ALA GLN PHE TRP          
SEQRES   3 B  322  THR GLU GLU GLU ILE ALA VAL SER SER ASP LYS ASN THR          
SEQRES   4 B  322  TRP VAL GLN LEU SER LYS GLU GLU GLN ILE ALA TYR LYS          
SEQRES   5 B  322  ARG VAL LEU GLY GLY LEU THR LEU LEU ASP THR LYS GLN          
SEQRES   6 B  322  GLY GLY GLU GLY MET PRO LEU VAL LEU VAL HIS LEU GLU          
SEQRES   7 B  322  ASN LEU GLN ALA LYS SER VAL LEU ALA PHE MET GLY ALA          
SEQRES   8 B  322  MET GLU GLU VAL HIS ALA LYS SER TYR SER HIS ILE PHE          
SEQRES   9 B  322  THR THR LEU ALA THR GLU GLU GLU ILE ASP ASP ILE PHE          
SEQRES  10 B  322  ASP TRP VAL ASP ASN HIS PRO LEU LEU GLU LYS LYS ALA          
SEQRES  11 B  322  GLY ILE ILE THR SER TYR TYR ARG ARG LEU LEU LYS PRO          
SEQRES  12 B  322  GLU VAL THR LYS LYS GLU LEU TYR MET ALA MET VAL ALA          
SEQRES  13 B  322  SER VAL PHE LEU GLU SER TYR LEU PHE TYR SER GLY PHE          
SEQRES  14 B  322  PHE TYR PRO LEU TYR LEU ALA GLY GLN GLY LYS LEU THR          
SEQRES  15 B  322  ALA SER GLY GLU ILE ILE ASN LEU ILE ILE ARG ASP GLU          
SEQRES  16 B  322  SER ILE HIS GLY VAL PHE VAL GLY ILE LEU ALA GLN GLN          
SEQRES  17 B  322  ILE PHE ALA GLU LEU SER ALA GLU GLU GLN GLN GLU VAL          
SEQRES  18 B  322  GLN LYS GLU THR GLN GLU LEU LEU MET GLU LEU TYR GLU          
SEQRES  19 B  322  ILE GLU MET ALA TYR THR GLU GLU ILE TYR THR SER ILE          
SEQRES  20 B  322  GLY LEU VAL GLU ASP VAL ASN ARG PHE VAL ARG TYR ASN          
SEQRES  21 B  322  ALA ASN LYS GLY LEU MET ASN LEU GLY LEU GLU PRO LYS          
SEQRES  22 B  322  PHE GLU GLU GLU GLU ILE ASN PRO ILE VAL LEU ASN GLY          
SEQRES  23 B  322  LEU ARG THR ASP THR LYS ASN HIS ASP PHE PHE SER VAL          
SEQRES  24 B  322  LYS GLY ASN GLY TYR VAL LYS ALA THR ASN VAL GLU LYS          
SEQRES  25 B  322  LEU ALA ASP ASP ASP PHE VAL PHE ASN PHE                      
HET    FE2  A1323       1                                                       
HET    FE2  A1324       1                                                       
HET    FE2  B1323       1                                                       
HET    FE2  B1324       1                                                       
HETNAM     FE2 FE (II) ION                                                      
FORMUL   3  FE2    4(FE 2+)                                                     
FORMUL   7  HOH   *61(H2 O)                                                     
HELIX    1   1 PHE A   13  GLN A   24  1                                  12    
HELIX    2   2 THR A   27  ILE A   31  5                                   5    
HELIX    3   3 VAL A   33  SER A   35  5                                   3    
HELIX    4   4 ASP A   36  VAL A   41  1                                   6    
HELIX    5   5 SER A   44  GLU A   68  1                                  25    
HELIX    6   6 GLU A   68  HIS A   76  1                                   9    
HELIX    7   7 ASN A   79  ALA A  108  1                                  30    
HELIX    8   8 THR A  109  HIS A  123  1                                  15    
HELIX    9   9 HIS A  123  ARG A  139  1                                  17    
HELIX   10  10 THR A  146  TYR A  163  1                                  18    
HELIX   11  11 PHE A  165  GLY A  177  1                                  13    
HELIX   12  12 LEU A  181  GLU A  212  1                                  32    
HELIX   13  13 SER A  214  THR A  245  1                                  32    
HELIX   14  14 SER A  246  GLY A  248  5                                   3    
HELIX   15  15 LEU A  249  LEU A  268  1                                  20    
HELIX   16  16 ASN A  280  LEU A  287  1                                   8    
HELIX   17  17 PHE B   13  GLN B   24  1                                  12    
HELIX   18  18 THR B   27  ILE B   31  5                                   5    
HELIX   19  19 VAL B   33  SER B   35  5                                   3    
HELIX   20  20 ASP B   36  VAL B   41  1                                   6    
HELIX   21  21 SER B   44  GLU B   68  1                                  25    
HELIX   22  22 GLU B   68  HIS B   76  1                                   9    
HELIX   23  23 ASN B   79  ALA B  108  1                                  30    
HELIX   24  24 THR B  109  HIS B  123  1                                  15    
HELIX   25  25 HIS B  123  ARG B  139  1                                  17    
HELIX   26  26 THR B  146  TYR B  163  1                                  18    
HELIX   27  27 PHE B  165  GLY B  177  1                                  13    
HELIX   28  28 LEU B  181  GLU B  212  1                                  32    
HELIX   29  29 SER B  214  THR B  245  1                                  32    
HELIX   30  30 SER B  246  GLY B  248  5                                   3    
HELIX   31  31 LEU B  249  LEU B  268  1                                  20    
HELIX   32  32 ASN B  280  GLY B  286  1                                   7    
LINK         OD1 ASP A  62                FE   FE2 A1323     1555   1555  1.89  
LINK         OE1 GLU A  93                FE   FE2 A1323     1555   1555  1.97  
LINK         OE2 GLU A  93                FE   FE2 A1324     1555   1555  2.13  
LINK         ND1 HIS A  96                FE   FE2 A1323     1555   1555  2.21  
LINK         OE2 GLU A 161                FE   FE2 A1324     1555   1555  2.11  
LINK         OE1 GLU A 161                FE   FE2 A1324     1555   1555  2.33  
LINK         OE2 GLU A 195                FE   FE2 A1323     1555   1555  2.46  
LINK         OE1 GLU A 195                FE   FE2 A1324     1555   1555  2.03  
LINK         OE2 GLU A 195                FE   FE2 A1324     1555   1555  2.19  
LINK         ND1 HIS A 198                FE   FE2 A1324     1555   1555  2.31  
LINK        FE   FE2 A1323                 O   HOH A2015     1555   1555  1.94  
LINK         OD1 ASP B  62                FE   FE2 B1323     1555   1555  1.97  
LINK         OE1 GLU B  93                FE   FE2 B1323     1555   1555  2.06  
LINK         OE2 GLU B  93                FE   FE2 B1324     1555   1555  2.13  
LINK         ND1 HIS B  96                FE   FE2 B1323     1555   1555  2.46  
LINK         OE2 GLU B 161                FE   FE2 B1324     1555   1555  2.35  
LINK         OE2 GLU B 195                FE   FE2 B1323     1555   1555  2.25  
LINK         OE2 GLU B 195                FE   FE2 B1324     1555   1555  2.31  
LINK         OE1 GLU B 195                FE   FE2 B1324     1555   1555  2.10  
LINK         ND1 HIS B 198                FE   FE2 B1324     1555   1555  2.32  
LINK        FE   FE2 B1323                 O   HOH B2010     1555   1555  2.07  
LINK        FE   FE2 B1324                 O   HOH B2011     1555   1555  2.77  
SITE     1 AC1  6 ASP A  62  GLU A  93  HIS A  96  GLU A 195                    
SITE     2 AC1  6 HOH A2015  HOH A2016                                          
SITE     1 AC2  5 GLU A  93  GLU A 161  GLU A 195  HIS A 198                    
SITE     2 AC2  5 HOH A2016                                                     
SITE     1 AC3  6 ASP B  62  GLU B  93  HIS B  96  GLU B 195                    
SITE     2 AC3  6 HOH B2010  HOH B2011                                          
SITE     1 AC4  5 GLU B  93  GLU B 161  GLU B 195  HIS B 198                    
SITE     2 AC4  5 HOH B2011                                                     
CRYST1   62.030   49.290   98.510  90.00 107.16  90.00 P 1 21 1      4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.016121  0.000000  0.004978        0.00000                         
SCALE2      0.000000  0.020288  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010624        0.00000