PDB Short entry for 1RVB
HEADER    HYDROLASE/DNA                           21-OCT-94   1RVB              
TITLE     MG2+ BINDING TO THE ACTIVE SITE OF ECO RV ENDONUCLEASE: A             
TITLE    2 CRYSTALLOGRAPHIC STUDY OF COMPLEXES WITH SUBSTRATE AND               
TITLE    3 PRODUCT DNA AT 2 ANGSTROMS RESOLUTION                                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-D(*AP*AP*AP*GP*AP*TP*AP*TP*CP*TP*T)-3');           
COMPND   3 CHAIN: C, D;                                                         
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: PROTEIN (ECO RV (E.C.3.1.21.4));                           
COMPND   7 CHAIN: A, B;                                                         
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   5 ORGANISM_TAXID: 562;                                                 
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    PROTEIN-DNA COMPLEX, HYDROLASE/DNA COMPLEX                            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.KOSTREWA,F.K.WINKLER                                                
REVDAT   3   24-FEB-09 1RVB    1       VERSN                                    
REVDAT   2   01-APR-03 1RVB    1       JRNL                                     
REVDAT   1   26-JAN-95 1RVB    0                                                
JRNL        AUTH   D.KOSTREWA,F.K.WINKLER                                       
JRNL        TITL   MG2+ BINDING TO THE ACTIVE SITE OF ECORV                     
JRNL        TITL 2 ENDONUCLEASE: A CRYSTALLOGRAPHIC STUDY OF                    
JRNL        TITL 3 COMPLEXES WITH SUBSTRATE AND PRODUCT DNA AT 2 A              
JRNL        TITL 4 RESOLUTION.                                                  
JRNL        REF    BIOCHEMISTRY                  V.  34   683 1995              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   7819264                                                      
JRNL        DOI    10.1021/BI00002A036                                          
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   F.K.WINKLER,D.W.BANNER,C.OEFNER,D.TSERNOGLOU,                
REMARK   1  AUTH 2 R.S.BROWN,S.P.HEATHMAN,R.K.BRYAN,P.D.MARTIN,                 
REMARK   1  AUTH 3 K.PETRATOS,K.S.WILSON                                        
REMARK   1  TITL   THE CRYSTAL STRUCTURE OF ECORV ENDONUCLEASE AND OF           
REMARK   1  TITL 2 ITS COMPLEXES WITH COGNATE AND NONCOGNATE DNA                
REMARK   1  TITL 3 FRAGMENTS                                                    
REMARK   1  REF    EMBO J.                       V.  12  1781 1993              
REMARK   1  REFN                   ISSN 0261-4189                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   F.K.WINKLER                                                  
REMARK   1  TITL   STRUCTURE AND FUNCTION OF RESTRICTION ENDONUCLEASES          
REMARK   1  REF    CURR.OPIN.STRUCT.BIOL.        V.   2    93 1992              
REMARK   1  REFN                   ISSN 0959-440X                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR                                               
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 26254                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.165                           
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4046                                    
REMARK   3   NUCLEIC ACID ATOMS       : 446                                     
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 185                                     
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.010                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.88                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : 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  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1RVB COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
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) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.09                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.16                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,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                                                                      
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: TETRAMERIC                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D, 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 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     DA C   1   C5'    DA C   1   C4'     0.051                       
REMARK 500     DA C   1   N9     DA C   1   C4      0.040                       
REMARK 500     DA C   3   C5'    DA C   3   C4'     0.043                       
REMARK 500     DT C   6   C5     DT C   6   C7      0.055                       
REMARK 500     DT C  10   C5     DT C  10   C7      0.044                       
REMARK 500     DA D   1   C5'    DA D   1   C4'     0.069                       
REMARK 500     DA D   5   C5'    DA D   5   C4'     0.060                       
REMARK 500     DA D   7   N3     DA D   7   C4      0.041                       
REMARK 500     DT D   8   N1     DT D   8   C2      0.054                       
REMARK 500     DC D   9   O4'    DC D   9   C4'    -0.062                       
REMARK 500     DT D  10   P      DT D  10   O5'     0.061                       
REMARK 500     DT D  10   C5     DT D  10   C7      0.048                       
REMARK 500     DT D  11   C4'    DT D  11   C3'     0.073                       
REMARK 500     DT D  11   C5     DT D  11   C7      0.071                       
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     DG C   4   C3' -  C2' -  C1' ANGL. DEV. =  -5.9 DEGREES          
REMARK 500     DG C   4   O4' -  C1' -  N9  ANGL. DEV. =   4.2 DEGREES          
REMARK 500     DA C   3   C3' -  O3' -  P   ANGL. DEV. =   8.7 DEGREES          
REMARK 500     DA C   5   O4' -  C1' -  N9  ANGL. DEV. =  -6.7 DEGREES          
REMARK 500     DT C   6   O4' -  C4' -  C3' ANGL. DEV. =  -4.0 DEGREES          
REMARK 500     DT C   6   O4' -  C1' -  N1  ANGL. DEV. =   3.3 DEGREES          
REMARK 500     DT C   6   C4  -  C5  -  C6  ANGL. DEV. =   3.8 DEGREES          
REMARK 500     DT C   6   C6  -  C5  -  C7  ANGL. DEV. =  -4.3 DEGREES          
REMARK 500     DA C   7   O4' -  C1' -  C2' ANGL. DEV. =  -6.6 DEGREES          
REMARK 500     DT C   8   C1' -  O4' -  C4' ANGL. DEV. =  -6.3 DEGREES          
REMARK 500     DT C   8   C5  -  C6  -  N1  ANGL. DEV. =  -3.8 DEGREES          
REMARK 500     DT C   8   C3' -  O3' -  P   ANGL. DEV. =  11.5 DEGREES          
REMARK 500     DT C  10   O4' -  C1' -  N1  ANGL. DEV. =  -5.3 DEGREES          
REMARK 500     DT C  10   C6  -  C5  -  C7  ANGL. DEV. =  -4.9 DEGREES          
REMARK 500     DT C  11   N3  -  C2  -  O2  ANGL. DEV. =  -4.3 DEGREES          
REMARK 500     DT C  11   N3  -  C4  -  O4  ANGL. DEV. =  -3.9 DEGREES          
REMARK 500     DT C  11   C5  -  C4  -  O4  ANGL. DEV. =   4.9 DEGREES          
REMARK 500     DT C  11   C4  -  C5  -  C7  ANGL. DEV. =   4.7 DEGREES          
REMARK 500     DT C  11   C6  -  C5  -  C7  ANGL. DEV. =  -7.1 DEGREES          
REMARK 500     DA D   1   C3' -  C2' -  C1' ANGL. DEV. =  -5.0 DEGREES          
REMARK 500     DA D   1   O4' -  C1' -  N9  ANGL. DEV. =  -4.5 DEGREES          
REMARK 500     DA D   2   C3' -  O3' -  P   ANGL. DEV. =   7.2 DEGREES          
REMARK 500     DG D   4   C3' -  C2' -  C1' ANGL. DEV. =  -7.2 DEGREES          
REMARK 500     DG D   4   O4' -  C1' -  N9  ANGL. DEV. =   3.5 DEGREES          
REMARK 500     DA D   5   O4' -  C1' -  C2' ANGL. DEV. =   4.1 DEGREES          
REMARK 500     DA D   5   N1  -  C6  -  N6  ANGL. DEV. =   3.7 DEGREES          
REMARK 500     DT D   6   O4' -  C4' -  C3' ANGL. DEV. =  -4.4 DEGREES          
REMARK 500     DT D   6   O4' -  C1' -  N1  ANGL. DEV. =   2.9 DEGREES          
REMARK 500     DT D   8   C3' -  C2' -  C1' ANGL. DEV. =  -6.6 DEGREES          
REMARK 500     DT D   8   O4' -  C1' -  C2' ANGL. DEV. =  -7.3 DEGREES          
REMARK 500     DT D   8   C4  -  C5  -  C6  ANGL. DEV. =   3.8 DEGREES          
REMARK 500     DT D   8   C5  -  C6  -  N1  ANGL. DEV. =  -3.7 DEGREES          
REMARK 500     DT D   8   N3  -  C2  -  O2  ANGL. DEV. =  -4.7 DEGREES          
REMARK 500     DT D   8   C6  -  C5  -  C7  ANGL. DEV. =  -4.7 DEGREES          
REMARK 500     DT D   8   C3' -  O3' -  P   ANGL. DEV. =  10.3 DEGREES          
REMARK 500     DT D  10   O4' -  C4' -  C3' ANGL. DEV. =  -4.0 DEGREES          
REMARK 500     DT D  10   C3' -  C2' -  C1' ANGL. DEV. =  -5.8 DEGREES          
REMARK 500     DT D  10   N3  -  C2  -  O2  ANGL. DEV. =  -3.8 DEGREES          
REMARK 500     DT D  10   C6  -  C5  -  C7  ANGL. DEV. =  -4.8 DEGREES          
REMARK 500     DT D  11   O5' -  C5' -  C4' ANGL. DEV. =  -5.3 DEGREES          
REMARK 500     DT D  11   P   -  O5' -  C5' ANGL. DEV. =  13.5 DEGREES          
REMARK 500     DT D  11   O4' -  C1' -  N1  ANGL. DEV. =   1.9 DEGREES          
REMARK 500     DT D  11   C6  -  C5  -  C7  ANGL. DEV. =  -4.3 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASN A  70       41.82    -83.50                                   
REMARK 500    TYR A  78      146.45   -172.84                                   
REMARK 500    SER A 112     -121.17   -103.48                                   
REMARK 500    ASN A 117      -26.03    -33.66                                   
REMARK 500    THR A 187       70.59     31.16                                   
REMARK 500    LYS A 229      -99.46   -114.29                                   
REMARK 500    GLU B  82       69.23   -117.26                                   
REMARK 500    ASN B  84       30.72    -97.78                                   
REMARK 500    SER B 112     -112.80    -92.89                                   
REMARK 500    ASN B 117      -23.16    -31.78                                   
REMARK 500    THR B 187       58.30     32.43                                   
REMARK 500    LYS B 229      -91.61   -146.80                                   
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                              MG B 301  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DA D   7   OP1                                                    
REMARK 620 2 ASP B  74   OD2 152.8                                              
REMARK 620 3 ASP B  90   OD1 111.3  68.2                                        
REMARK 620 4 HOH D  16   O    81.7 124.2  83.6                                  
REMARK 620 5 HOH B 341   O    95.9  58.5  99.3 176.7                            
REMARK 620 6 HOH B 342   O    87.3  98.4 160.3  93.2  84.5                      
REMARK 620 7 ASP B  74   OD1 151.8  43.0  96.7  98.6  82.5  64.5                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 302  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU B  45   OE2                                                    
REMARK 620 2 HOH B 349   O   110.2                                              
REMARK 620 3 HOH B 379   O   144.4 103.7                                        
REMARK 620 4 ASP B  74   OD1 105.9 105.2  74.4                                  
REMARK 620 N                    1     2     3                                   
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 301                  
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 302                  
DBREF  1RVB A    2   245  UNP    P04390   T2E5_ECOLI       1    244             
DBREF  1RVB B    2   245  UNP    P04390   T2E5_ECOLI       1    244             
DBREF  1RVB C    1    11  PDB    1RVB     1RVB             1     11             
DBREF  1RVB D    1    11  PDB    1RVB     1RVB             1     11             
SEQRES   1 C   11   DA  DA  DA  DG  DA  DT  DA  DT  DC  DT  DT                  
SEQRES   1 D   11   DA  DA  DA  DG  DA  DT  DA  DT  DC  DT  DT                  
SEQRES   1 A  244  SER LEU ARG SER ASP LEU ILE ASN ALA LEU TYR ASP GLU          
SEQRES   2 A  244  ASN GLN LYS TYR ASP VAL CYS GLY ILE ILE SER ALA GLU          
SEQRES   3 A  244  GLY LYS ILE TYR PRO LEU GLY SER ASP THR LYS VAL LEU          
SEQRES   4 A  244  SER THR ILE PHE GLU LEU PHE SER ARG PRO ILE ILE ASN          
SEQRES   5 A  244  LYS ILE ALA GLU LYS HIS GLY TYR ILE VAL GLU GLU PRO          
SEQRES   6 A  244  LYS GLN GLN ASN HIS TYR PRO ASP PHE THR LEU TYR LYS          
SEQRES   7 A  244  PRO SER GLU PRO ASN LYS LYS ILE ALA ILE ASP ILE LYS          
SEQRES   8 A  244  THR THR TYR THR ASN LYS GLU ASN GLU LYS ILE LYS PHE          
SEQRES   9 A  244  THR LEU GLY GLY TYR THR SER PHE ILE ARG ASN ASN THR          
SEQRES  10 A  244  LYS ASN ILE VAL TYR PRO PHE ASP GLN TYR ILE ALA HIS          
SEQRES  11 A  244  TRP ILE ILE GLY TYR VAL TYR THR ARG VAL ALA THR ARG          
SEQRES  12 A  244  LYS SER SER LEU LYS THR TYR ASN ILE ASN GLU LEU ASN          
SEQRES  13 A  244  GLU ILE PRO LYS PRO TYR LYS GLY VAL LYS VAL PHE LEU          
SEQRES  14 A  244  GLN ASP LYS TRP VAL ILE ALA GLY ASP LEU ALA GLY SER          
SEQRES  15 A  244  GLY ASN THR THR ASN ILE GLY SER ILE HIS ALA HIS TYR          
SEQRES  16 A  244  LYS ASP PHE VAL GLU GLY LYS GLY ILE PHE ASP SER GLU          
SEQRES  17 A  244  ASP GLU PHE LEU ASP TYR TRP ARG ASN TYR GLU ARG THR          
SEQRES  18 A  244  SER GLN LEU ARG ASN ASP LYS TYR ASN ASN ILE SER GLU          
SEQRES  19 A  244  TYR ARG ASN TRP ILE TYR ARG GLY ARG LYS                      
SEQRES   1 B  244  SER LEU ARG SER ASP LEU ILE ASN ALA LEU TYR ASP GLU          
SEQRES   2 B  244  ASN GLN LYS TYR ASP VAL CYS GLY ILE ILE SER ALA GLU          
SEQRES   3 B  244  GLY LYS ILE TYR PRO LEU GLY SER ASP THR LYS VAL LEU          
SEQRES   4 B  244  SER THR ILE PHE GLU LEU PHE SER ARG PRO ILE ILE ASN          
SEQRES   5 B  244  LYS ILE ALA GLU LYS HIS GLY TYR ILE VAL GLU GLU PRO          
SEQRES   6 B  244  LYS GLN GLN ASN HIS TYR PRO ASP PHE THR LEU TYR LYS          
SEQRES   7 B  244  PRO SER GLU PRO ASN LYS LYS ILE ALA ILE ASP ILE LYS          
SEQRES   8 B  244  THR THR TYR THR ASN LYS GLU ASN GLU LYS ILE LYS PHE          
SEQRES   9 B  244  THR LEU GLY GLY TYR THR SER PHE ILE ARG ASN ASN THR          
SEQRES  10 B  244  LYS ASN ILE VAL TYR PRO PHE ASP GLN TYR ILE ALA HIS          
SEQRES  11 B  244  TRP ILE ILE GLY TYR VAL TYR THR ARG VAL ALA THR ARG          
SEQRES  12 B  244  LYS SER SER LEU LYS THR TYR ASN ILE ASN GLU LEU ASN          
SEQRES  13 B  244  GLU ILE PRO LYS PRO TYR LYS GLY VAL LYS VAL PHE LEU          
SEQRES  14 B  244  GLN ASP LYS TRP VAL ILE ALA GLY ASP LEU ALA GLY SER          
SEQRES  15 B  244  GLY ASN THR THR ASN ILE GLY SER ILE HIS ALA HIS TYR          
SEQRES  16 B  244  LYS ASP PHE VAL GLU GLY LYS GLY ILE PHE ASP SER GLU          
SEQRES  17 B  244  ASP GLU PHE LEU ASP TYR TRP ARG ASN TYR GLU ARG THR          
SEQRES  18 B  244  SER GLN LEU ARG ASN ASP LYS TYR ASN ASN ILE SER GLU          
SEQRES  19 B  244  TYR ARG ASN TRP ILE TYR ARG GLY ARG LYS                      
HET     MG  B 301       1                                                       
HET     MG  B 302       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   5   MG    2(MG 2+)                                                     
FORMUL   7  HOH   *185(H2 O)                                                    
HELIX    1   1 SER A    2  TYR A   18  1                                  17    
HELIX    2   2 ASP A   36  HIS A   59  1                                  24    
HELIX    3   3 PRO A  124  ASP A  126  5                                   3    
HELIX    4   4 ARG A  144  LYS A  149  5                                   6    
HELIX    5   5 ASN A  152  ILE A  159  5                                   8    
HELIX    6   6 LYS A  173  ILE A  176  1                                   4    
HELIX    7   7 HIS A  195  GLY A  202  1                                   8    
HELIX    8   8 SER A  208  ASN A  218  1                                  11    
HELIX    9   9 THR A  222  ASP A  228  1                                   7    
HELIX   10  10 ASN A  232  ARG A  242  1                                  11    
HELIX   11  11 SER B    2  TYR B   18  1                                  17    
HELIX   12  12 ASP B   36  LYS B   58  1                                  23    
HELIX   13  13 PRO B  124  ASP B  126  5                                   3    
HELIX   14  14 ASN B  154  ILE B  159  5                                   6    
HELIX   15  15 LYS B  173  ILE B  176  1                                   4    
HELIX   16  16 HIS B  195  GLY B  202  1                                   8    
HELIX   17  17 SER B  208  ASN B  218  1                                  11    
HELIX   18  18 THR B  222  ASN B  227  1                                   6    
HELIX   19  19 ASN B  232  ARG B  242  1                                  11    
SHEET    1   A 5 ILE A  30  PRO A  32  0                                        
SHEET    2   A 5 VAL A  20  SER A  25 -1  O  ILE A  23   N  TYR A  31           
SHEET    3   A 5 VAL B  20  SER B  25 -1  N  CYS B  21   O  ILE A  24           
SHEET    4   A 5 LYS B  29  PRO B  32 -1  O  LYS B  29   N  SER B  25           
SHEET    5   A 5 TYR B 151  ASN B 152 -1  O  TYR B 151   N  ILE B  30           
SHEET    1   B 5 ILE A  62  GLU A  64  0                                        
SHEET    2   B 5 PHE A  75  TYR A  78 -1  N  THR A  76   O  GLU A  64           
SHEET    3   B 5 LYS A  86  THR A  96 -1  N  ILE A  87   O  LEU A  77           
SHEET    4   B 5 TYR A 128  THR A 139  1  N  ILE A 129   O  LYS A  86           
SHEET    5   B 5 LYS A 167  ASP A 172 -1  N  LYS A 167   O  VAL A 137           
SHEET    1   C 3 THR A 106  GLY A 109  0                                        
SHEET    2   C 3 ASN A 188  SER A 191 -1  O  ILE A 189   N  LEU A 107           
SHEET    3   C 3 ALA A 177  SER A 183 -1  N  GLY A 178   O  GLY A 190           
SHEET    1   D 5 ILE B  62  GLU B  64  0                                        
SHEET    2   D 5 PHE B  75  TYR B  78 -1  N  THR B  76   O  GLU B  64           
SHEET    3   D 5 LYS B  86  THR B  96 -1  N  ILE B  87   O  LEU B  77           
SHEET    4   D 5 TYR B 128  ARG B 140  1  N  ILE B 129   O  LYS B  86           
SHEET    5   D 5 TYR B 163  ASP B 172 -1  N  LYS B 164   O  THR B 139           
SHEET    1   E 3 THR B 106  GLY B 109  0                                        
SHEET    2   E 3 ASN B 188  SER B 191 -1  N  ILE B 189   O  GLY B 108           
SHEET    3   E 3 ALA B 177  ALA B 181 -1  N  GLY B 178   O  GLY B 190           
LINK        MG    MG B 301                 OP1  DA D   7     1555   1555  2.12  
LINK        MG    MG B 301                 OD2 ASP B  74     1555   1555  3.05  
LINK        MG    MG B 301                 OD1 ASP B  90     1555   1555  2.10  
LINK        MG    MG B 301                 O   HOH D  16     1555   1555  2.08  
LINK        MG    MG B 301                 O   HOH B 341     1555   1555  2.12  
LINK        MG    MG B 301                 O   HOH B 342     1555   1555  2.09  
LINK        MG    MG B 301                 OD1 ASP B  74     1555   1555  2.88  
LINK        MG    MG B 302                 OE2 GLU B  45     1555   1555  2.24  
LINK        MG    MG B 302                 O   HOH B 349     1555   1555  2.19  
LINK        MG    MG B 302                 O   HOH B 379     1555   1555  1.98  
LINK        MG    MG B 302                 OD1 ASP B  74     1555   1555  2.74  
CISPEP   1 TYR A   72    PRO A   73          0        -0.27                     
CISPEP   2 TYR B   72    PRO B   73          0        -0.60                     
SITE     1 AC1  6 ASP B  74  ASP B  90  HOH B 341  HOH B 342                    
SITE     2 AC1  6  DA D   7  HOH D  16                                          
SITE     1 AC2  4 GLU B  45  ASP B  74  HOH B 349  HOH B 379                    
CRYST1   49.160   50.420   64.060  96.35 108.85 108.45 P 1           2          
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      0.020342  0.006787  0.008805        0.00000                         
SCALE2      0.000000  0.020908  0.005103        0.00000                         
SCALE3      0.000000  0.000000  0.016979        0.00000