HEADER    METHYLTRANSFERASE                       01-MAY-98   2CBF              
TITLE     THE X-RAY STRUCTURE OF A COBALAMIN BIOSYNTHETIC ENZYME, COBALT        
TITLE    2 PRECORRIN-4 METHYLTRANSFERASE, CBIF, FROM BACILLUS MEGATERIUM, WITH  
TITLE    3 THE HIS-TAG CLEAVED OFF                                              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: COBALT-PRECORRIN-4 TRANSMETHYLASE;                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: PRECORRIN-4 METHYLASE, CBIF;                                
COMPND   5 EC: 2.1.1.133;                                                       
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BACILLUS MEGATERIUM;                            
SOURCE   3 ORGANISM_TAXID: 1404;                                                
SOURCE   4 CELL_LINE: BL21;                                                     
SOURCE   5 ATCC: DSM 509;                                                       
SOURCE   6 COLLECTION: DSM 509;                                                 
SOURCE   7 GENE: CBIF;                                                          
SOURCE   8 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   9 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  10 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3) LYSS;                           
SOURCE  11 EXPRESSION_SYSTEM_PLASMID: PET14B                                    
KEYWDS    PRECORRIN-4 METHYLTRANSFERASE, METHYLASE, COBALAMIN BIOSYNTHESIS,     
KEYWDS   2 METHYLTRANSFERASE                                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.L.SCHUBERT,E.RAUX,S.C.WOODCOCK,M.J.WARREN,K.S.WILSON                
REVDAT   5   03-APR-24 2CBF    1       REMARK                                   
REVDAT   4   14-FEB-24 2CBF    1       REMARK SEQADV                            
REVDAT   3   13-JUL-11 2CBF    1       VERSN                                    
REVDAT   2   24-FEB-09 2CBF    1       VERSN                                    
REVDAT   1   11-MAY-99 2CBF    0                                                
JRNL        AUTH   H.L.SCHUBERT,K.S.WILSON,E.RAUX,S.C.WOODCOCK,M.J.WARREN       
JRNL        TITL   THE X-RAY STRUCTURE OF A COBALAMIN BIOSYNTHETIC ENZYME,      
JRNL        TITL 2 COBALT-PRECORRIN-4 METHYLTRANSFERASE.                        
JRNL        REF    NAT.STRUCT.BIOL.              V.   5   585 1998              
JRNL        REFN                   ISSN 1072-8368                               
JRNL        PMID   9665173                                                      
JRNL        DOI    10.1038/846                                                  
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   E.RAUX,H.L.SCHUBERT,S.C.WOODCOCK,K.S.WILSON,M.J.WARREN       
REMARK   1  TITL   COBALAMIN (VITAMIN B12) BIOSYNTHESIS--CLONING, EXPRESSION    
REMARK   1  TITL 2 AND CRYSTALLISATION OF THE BACILLUS MEGATERIUM               
REMARK   1  TITL 3 S-ADENOSYL-L-METHIONINE-DEPENDENT COBALT-PRECORRIN-4         
REMARK   1  TITL 4 TRANSMETHYLASE CBIF                                          
REMARK   1  REF    EUR.J.BIOCHEM.                V. 254   341 1998              
REMARK   1  REFN                   ISSN 0014-2956                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.10 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) : 3.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 5524                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : SAME AS ENTRY 1CBF              
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.183                           
REMARK   3   FREE R VALUE                     : 0.281                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 255                             
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1781                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 26                                      
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
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) : NULL  ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
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) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2CBF 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_1000177899.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : DEC-97                             
REMARK 200  TEMPERATURE           (KELVIN) : 298                                
REMARK 200  PH                             : 8.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : MSC MIRRORS                        
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   : 5524                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.0                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.08200                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 7.5000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.21                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 94.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.47200                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: CBIF-FULL LENGTH CRYSTALLIZED IN PO4                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 8.5                                   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+1/3                                           
REMARK 290       6555   -X,-X+Y,-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       51.97333            
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       25.98667            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       25.98667            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       51.97333            
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,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 4480 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18910 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -32.0 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       51.97333            
REMARK 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 THE ROTATION MATRIX TO SUPERIMPOSE THIS STRUCTURE TO THE             
REMARK 400 PO4-BOUND STRUCTURE AT 2.1 ANGSTROM RESOLUTION IS:                   
REMARK 400                                                                      
REMARK 400    0.1391 -0.4897  0.8607  22.6965                                   
REMARK 400   -0.5121  0.7084  0.4857  12.8922                                   
REMARK 400   -0.8476 -0.5083 -0.1522  77.3807                                   
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    ALA A    53     CB   ASP A    54              1.53            
REMARK 500   O    VAL A    71     N    LEU A    72              1.58            
REMARK 500   O    GLY A    93     N    LYS A    94              1.79            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLY A  18   N     GLY A  18   CA      0.115                       
REMARK 500    SER A  19   CB    SER A  19   OG      0.175                       
REMARK 500    HIS A  20   CG    HIS A  20   CD2     0.054                       
REMARK 500    ILE A  36   N     ILE A  36   CA      0.137                       
REMARK 500    LEU A  43   CA    LEU A  43   C      -0.160                       
REMARK 500    VAL A  50   CB    VAL A  50   CG2    -0.180                       
REMARK 500    GLU A  70   CD    GLU A  70   OE1     0.103                       
REMARK 500    VAL A  71   C     VAL A  71   O      -0.127                       
REMARK 500    GLU A  81   CD    GLU A  81   OE1     0.079                       
REMARK 500    GLU A  81   CD    GLU A  81   OE2     0.164                       
REMARK 500    ARG A  91   C     ARG A  91   O      -0.136                       
REMARK 500    GLY A  93   N     GLY A  93   CA     -0.107                       
REMARK 500    GLY A  93   CA    GLY A  93   C      -0.110                       
REMARK 500    VAL A  97   CB    VAL A  97   CG1    -0.153                       
REMARK 500    ARG A  98   CZ    ARG A  98   NH1     0.110                       
REMARK 500    HIS A 100   CB    HIS A 100   CG     -0.099                       
REMARK 500    PRO A 104   CD    PRO A 104   N      -0.086                       
REMARK 500    TYR A 107   CG    TYR A 107   CD2     0.086                       
REMARK 500    ALA A 109   CA    ALA A 109   CB     -0.202                       
REMARK 500    VAL A 115   CB    VAL A 115   CG1    -0.132                       
REMARK 500    ARG A 119   C     ARG A 119   O      -0.115                       
REMARK 500    GLY A 121   N     GLY A 121   CA     -0.146                       
REMARK 500    GLU A 125   CD    GLU A 125   OE2     0.068                       
REMARK 500    PRO A 128   CD    PRO A 128   N      -0.088                       
REMARK 500    GLY A 129   C     VAL A 130   N       0.148                       
REMARK 500    SER A 132   CB    SER A 132   OG     -0.086                       
REMARK 500    PHE A 134   CZ    PHE A 134   CE2    -0.183                       
REMARK 500    ALA A 139   C     ALA A 139   O      -0.123                       
REMARK 500    GLU A 141   CD    GLU A 141   OE2     0.087                       
REMARK 500    ALA A 142   CA    ALA A 142   CB     -0.151                       
REMARK 500    GLU A 143   CD    GLU A 143   OE1     0.092                       
REMARK 500    ARG A 161   C     ARG A 161   O       0.211                       
REMARK 500    GLU A 168   CG    GLU A 168   CD     -0.104                       
REMARK 500    GLU A 168   CD    GLU A 168   OE1    -0.066                       
REMARK 500    HIS A 176   CG    HIS A 176   CD2     0.079                       
REMARK 500    LYS A 177   C     LYS A 177   O       0.173                       
REMARK 500    GLU A 203   CD    GLU A 203   OE2     0.067                       
REMARK 500    VAL A 208   CB    VAL A 208   CG2    -0.127                       
REMARK 500    ALA A 213   CA    ALA A 213   CB     -0.170                       
REMARK 500    TRP A 215   CE2   TRP A 215   CD2    -0.098                       
REMARK 500    TRP A 215   CD2   TRP A 215   CE3    -0.099                       
REMARK 500    PRO A 216   CA    PRO A 216   CB     -0.206                       
REMARK 500    GLY A 236   N     GLY A 236   CA     -0.122                       
REMARK 500    PRO A 251   CD    PRO A 251   N       0.101                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    GLY A  18   CA  -  C   -  O   ANGL. DEV. =  15.2 DEGREES          
REMARK 500    GLY A  18   O   -  C   -  N   ANGL. DEV. = -12.7 DEGREES          
REMARK 500    SER A  19   N   -  CA  -  CB  ANGL. DEV. = -14.9 DEGREES          
REMARK 500    HIS A  20   CA  -  CB  -  CG  ANGL. DEV. = -11.8 DEGREES          
REMARK 500    HIS A  20   CA  -  C   -  O   ANGL. DEV. = -13.9 DEGREES          
REMARK 500    HIS A  20   O   -  C   -  N   ANGL. DEV. =  15.9 DEGREES          
REMARK 500    MET A  21   C   -  N   -  CA  ANGL. DEV. = -17.6 DEGREES          
REMARK 500    MET A  21   CB  -  CG  -  SD  ANGL. DEV. =  19.8 DEGREES          
REMARK 500    MET A  21   CA  -  C   -  O   ANGL. DEV. = -12.8 DEGREES          
REMARK 500    LYS A  22   CA  -  C   -  O   ANGL. DEV. = -24.1 DEGREES          
REMARK 500    LYS A  22   O   -  C   -  N   ANGL. DEV. =  24.2 DEGREES          
REMARK 500    LEU A  23   CB  -  CG  -  CD1 ANGL. DEV. =  18.8 DEGREES          
REMARK 500    LEU A  23   CB  -  CG  -  CD2 ANGL. DEV. = -14.5 DEGREES          
REMARK 500    LEU A  23   CA  -  C   -  O   ANGL. DEV. = -18.0 DEGREES          
REMARK 500    LEU A  23   CA  -  C   -  N   ANGL. DEV. =  19.1 DEGREES          
REMARK 500    TYR A  24   CG  -  CD2 -  CE2 ANGL. DEV. =  -7.7 DEGREES          
REMARK 500    TYR A  24   CE1 -  CZ  -  OH  ANGL. DEV. =  17.6 DEGREES          
REMARK 500    TYR A  24   CZ  -  CE2 -  CD2 ANGL. DEV. =   8.1 DEGREES          
REMARK 500    ILE A  25   CA  -  C   -  O   ANGL. DEV. = -14.9 DEGREES          
REMARK 500    ILE A  25   O   -  C   -  N   ANGL. DEV. =  16.5 DEGREES          
REMARK 500    ILE A  26   CA  -  C   -  O   ANGL. DEV. = -18.4 DEGREES          
REMARK 500    ILE A  26   CA  -  C   -  N   ANGL. DEV. =  23.5 DEGREES          
REMARK 500    GLY A  27   C   -  N   -  CA  ANGL. DEV. =  13.0 DEGREES          
REMARK 500    ALA A  28   N   -  CA  -  CB  ANGL. DEV. =  17.2 DEGREES          
REMARK 500    PRO A  30   CB  -  CA  -  C   ANGL. DEV. = -15.7 DEGREES          
REMARK 500    GLY A  31   C   -  N   -  CA  ANGL. DEV. = -15.8 DEGREES          
REMARK 500    ASP A  32   CB  -  CA  -  C   ANGL. DEV. = -15.0 DEGREES          
REMARK 500    ASP A  32   OD1 -  CG  -  OD2 ANGL. DEV. = -26.3 DEGREES          
REMARK 500    ASP A  32   CB  -  CG  -  OD1 ANGL. DEV. =   6.5 DEGREES          
REMARK 500    ASP A  32   CB  -  CG  -  OD2 ANGL. DEV. =  19.7 DEGREES          
REMARK 500    ASP A  32   O   -  C   -  N   ANGL. DEV. = -17.5 DEGREES          
REMARK 500    PRO A  33   C   -  N   -  CD  ANGL. DEV. = -22.1 DEGREES          
REMARK 500    PRO A  33   CA  -  N   -  CD  ANGL. DEV. = -10.0 DEGREES          
REMARK 500    PRO A  33   CB  -  CA  -  C   ANGL. DEV. = -14.9 DEGREES          
REMARK 500    PRO A  33   CA  -  CB  -  CG  ANGL. DEV. = -16.0 DEGREES          
REMARK 500    PRO A  33   CA  -  C   -  O   ANGL. DEV. =  15.4 DEGREES          
REMARK 500    PRO A  33   CA  -  C   -  N   ANGL. DEV. = -15.5 DEGREES          
REMARK 500    ASP A  34   CB  -  CG  -  OD2 ANGL. DEV. =  -9.9 DEGREES          
REMARK 500    LEU A  35   N   -  CA  -  CB  ANGL. DEV. = -13.2 DEGREES          
REMARK 500    LEU A  35   CA  -  CB  -  CG  ANGL. DEV. = -17.3 DEGREES          
REMARK 500    LEU A  35   CB  -  CG  -  CD1 ANGL. DEV. = -12.7 DEGREES          
REMARK 500    LEU A  35   CB  -  CG  -  CD2 ANGL. DEV. =  15.2 DEGREES          
REMARK 500    ILE A  36   N   -  CA  -  CB  ANGL. DEV. =  17.2 DEGREES          
REMARK 500    ILE A  36   CA  -  C   -  O   ANGL. DEV. = -19.7 DEGREES          
REMARK 500    THR A  37   CA  -  CB  -  CG2 ANGL. DEV. =  -9.2 DEGREES          
REMARK 500    THR A  37   CA  -  C   -  O   ANGL. DEV. =  21.6 DEGREES          
REMARK 500    THR A  37   O   -  C   -  N   ANGL. DEV. = -12.4 DEGREES          
REMARK 500    VAL A  38   CG1 -  CB  -  CG2 ANGL. DEV. = -21.5 DEGREES          
REMARK 500    VAL A  38   CA  -  C   -  O   ANGL. DEV. =  15.4 DEGREES          
REMARK 500    LYS A  39   CA  -  C   -  O   ANGL. DEV. = -13.5 DEGREES          
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     488 ANGLE DEVIATIONS.                             
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    ASP A  54      135.52    112.61                                   
REMARK 500    LEU A  56       17.47    179.51                                   
REMARK 500    ALA A  75      -48.78    124.31                                   
REMARK 500    LEU A  79      -88.57    -17.57                                   
REMARK 500    PRO A 104        0.21    -66.82                                   
REMARK 500    MET A 114      -71.88    -45.46                                   
REMARK 500    VAL A 133      -58.04    -29.43                                   
REMARK 500    ASP A 148       -5.88     63.19                                   
REMARK 500    LEU A 149      -68.73   -120.61                                   
REMARK 500    THR A 156     -159.57   -142.49                                   
REMARK 500    THR A 162       97.93    -33.97                                   
REMARK 500    PHE A 167       53.19   -100.91                                   
REMARK 500    LEU A 184       42.01     27.59                                   
REMARK 500    THR A 187       40.45   -103.81                                   
REMARK 500    THR A 214       -0.89     69.21                                   
REMARK 500    THR A 223     -158.80   -169.82                                   
REMARK 500    LEU A 228      -72.39    -44.80                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 LEU A   23     TYR A   24                  140.73                    
REMARK 500 ARG A   98     VAL A   99                 -147.48                    
REMARK 500 ASN A  235     GLY A  236                 -144.65                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    TYR A  24         0.10    SIDE CHAIN                              
REMARK 500    TYR A 211         0.07    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    SER A  19        -16.40                                           
REMARK 500    MET A  21        -13.79                                           
REMARK 500    LEU A  23        -14.09                                           
REMARK 500    ALA A  28        -11.63                                           
REMARK 500    ASP A  32        -16.51                                           
REMARK 500    ILE A  36         31.73                                           
REMARK 500    LEU A  41        -20.30                                           
REMARK 500    GLN A  45         10.88                                           
REMARK 500    GLN A  46        -13.27                                           
REMARK 500    VAL A  49         12.91                                           
REMARK 500    SER A  55         17.25                                           
REMARK 500    LEU A  56        -22.90                                           
REMARK 500    SER A  58        -13.33                                           
REMARK 500    GLN A  59        -20.72                                           
REMARK 500    LEU A  61        -12.97                                           
REMARK 500    LYS A  64        -24.44                                           
REMARK 500    VAL A  71        -11.89                                           
REMARK 500    LEU A  72        -18.01                                           
REMARK 500    LEU A  87        -11.62                                           
REMARK 500    GLU A  92         11.84                                           
REMARK 500    LYS A  94        -17.53                                           
REMARK 500    VAL A  96        -19.50                                           
REMARK 500    ARG A  98         22.49                                           
REMARK 500    THR A 101        -14.28                                           
REMARK 500    TYR A 107        -23.91                                           
REMARK 500    ALA A 109        -17.77                                           
REMARK 500    LEU A 117         10.77                                           
REMARK 500    GLU A 120        -10.92                                           
REMARK 500    ILE A 124        -11.48                                           
REMARK 500    VAL A 127         15.97                                           
REMARK 500    PRO A 128        -10.09                                           
REMARK 500    ALA A 139         11.14                                           
REMARK 500    ALA A 140         29.85                                           
REMARK 500    GLU A 141         16.54                                           
REMARK 500    ALA A 142         22.91                                           
REMARK 500    GLU A 159        -12.73                                           
REMARK 500    LYS A 169        -14.66                                           
REMARK 500    LEU A 173        -34.23                                           
REMARK 500    THR A 179         14.77                                           
REMARK 500    ILE A 180         14.40                                           
REMARK 500    ALA A 181         11.77                                           
REMARK 500    SER A 185         13.39                                           
REMARK 500    THR A 189        -17.68                                           
REMARK 500    ALA A 199         11.02                                           
REMARK 500    TRP A 201        -13.99                                           
REMARK 500    SER A 202        -18.37                                           
REMARK 500    VAL A 209        -17.90                                           
REMARK 500    LYS A 212        -17.03                                           
REMARK 500    ILE A 220         11.47                                           
REMARK 500    ASP A 227         23.25                                           
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      54 MAIN CHAIN PLANARITY DEVIATIONS.              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: SAH                                                 
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: S-ADENOSYL-HOMOCYSTEINE BINDING SITE. CRYSTALS     
REMARK 800  FORMED IN THE PRESENCE OF ADOMET OR ADOHCY.                         
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: FLP                                                 
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: TWO REGIONS CONTAIN SIGNIFICANTLY ALTERED          
REMARK 800  LOCATIONS RELATIVE TO THE PO4-BOUND STRUCTURE.                      
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SAH A 300                 
DBREF  2CBF A   21   251  UNP    O87696   CBIF_BACME       1    231             
SEQADV 2CBF SER A  186  UNP  O87696    ALA   166 CONFLICT                       
SEQRES   1 A  234  GLY SER HIS MET LYS LEU TYR ILE ILE GLY ALA GLY PRO          
SEQRES   2 A  234  GLY ASP PRO ASP LEU ILE THR VAL LYS GLY LEU LYS LEU          
SEQRES   3 A  234  LEU GLN GLN ALA ASP VAL VAL LEU TYR ALA ASP SER LEU          
SEQRES   4 A  234  VAL SER GLN ASP LEU ILE ALA LYS SER LYS PRO GLY ALA          
SEQRES   5 A  234  GLU VAL LEU LYS THR ALA GLY MET HIS LEU GLU GLU MET          
SEQRES   6 A  234  VAL GLY THR MET LEU ASP ARG MET ARG GLU GLY LYS MET          
SEQRES   7 A  234  VAL VAL ARG VAL HIS THR GLY ASP PRO ALA MET TYR GLY          
SEQRES   8 A  234  ALA ILE MET GLU GLN MET VAL LEU LEU LYS ARG GLU GLY          
SEQRES   9 A  234  VAL ASP ILE GLU ILE VAL PRO GLY VAL THR SER VAL PHE          
SEQRES  10 A  234  ALA ALA ALA ALA ALA ALA GLU ALA GLU LEU THR ILE PRO          
SEQRES  11 A  234  ASP LEU THR GLN THR VAL ILE LEU THR ARG ALA GLU GLY          
SEQRES  12 A  234  ARG THR PRO VAL PRO GLU PHE GLU LYS LEU THR ASP LEU          
SEQRES  13 A  234  ALA LYS HIS LYS CYS THR ILE ALA LEU PHE LEU SER SER          
SEQRES  14 A  234  THR LEU THR LYS LYS VAL MET LYS GLU PHE ILE ASN ALA          
SEQRES  15 A  234  GLY TRP SER GLU ASP THR PRO VAL VAL VAL VAL TYR LYS          
SEQRES  16 A  234  ALA THR TRP PRO ASP GLU LYS ILE VAL ARG THR THR VAL          
SEQRES  17 A  234  LYS ASP LEU ASP ASP ALA MET ARG THR ASN GLY ILE ARG          
SEQRES  18 A  234  LYS GLN ALA MET ILE LEU ALA GLY TRP ALA LEU ASP PRO          
HET    SAH  A 300      26                                                       
HETNAM     SAH S-ADENOSYL-L-HOMOCYSTEINE                                        
FORMUL   2  SAH    C14 H20 N6 O5 S                                              
HELIX    1   1 VAL A   38  LEU A   44  1                                   7    
HELIX    2   2 GLN A   59  LYS A   64  1                                   6    
HELIX    3   3 LEU A   79  ARG A   91  1                                  13    
HELIX    4   4 MET A  111  ARG A  119  1                                   9    
HELIX    5   5 SER A  132  ALA A  139  1                                   8    
HELIX    6   6 GLU A  166  GLU A  168  5                                   3    
HELIX    7   7 LEU A  170  HIS A  176  1                                   7    
HELIX    8   8 SER A  186  ALA A  199  5                                  14    
HELIX    9   9 VAL A  225  THR A  234  5                                  10    
HELIX   10  10 TRP A  247  LEU A  249  5                                   3    
SHEET    1   A 5 ASP A 123  VAL A 127  0                                        
SHEET    2   A 5 LYS A  22  GLY A  27  1  N  LEU A  23   O  ASP A 123           
SHEET    3   A 5 VAL A  96  HIS A 100  1  N  VAL A  96   O  TYR A  24           
SHEET    4   A 5 VAL A  49  ALA A  53  1  N  VAL A  49   O  VAL A  97           
SHEET    5   A 5 GLU A  70  THR A  74  1  N  GLU A  70   O  VAL A  50           
SHEET    1   B 5 ILE A 154  ARG A 157  0                                        
SHEET    2   B 5 ILE A 180  PHE A 183  1  N  ALA A 181   O  ILE A 154           
SHEET    3   B 5 ALA A 241  ALA A 245 -1  N  ALA A 245   O  ILE A 180           
SHEET    4   B 5 PRO A 206  TYR A 211 -1  N  VAL A 210   O  MET A 242           
SHEET    5   B 5 LYS A 219  THR A 224 -1  N  THR A 223   O  VAL A 207           
SITE     1 SAH  1 SAH A 300                                                     
SITE     1 FLP  4 ALA A  53  ASP A  54  SER A  55  LEU A  79                    
SITE     1 AC1 15 PRO A  30  THR A 101  GLY A 102  ASP A 103                    
SITE     2 AC1 15 MET A 106  THR A 131  SER A 132  PHE A 183                    
SITE     3 AC1 15 LEU A 184  VAL A 210  LYS A 212  ALA A 213                    
SITE     4 AC1 15 GLN A 240  ALA A 241  MET A 242                               
CRYST1   80.040   80.040   77.960  90.00  90.00 120.00 P 32 2 1      6          
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      0.012494  0.007213  0.000000        0.00000                         
SCALE2      0.000000  0.014427  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012827        0.00000