PDB Short entry for 1BSU
HEADER    HYDROLASE/DNA                           30-AUG-98   1BSU              
TITLE     STRUCTURAL AND ENERGETIC ORIGINS OF INDIRECT READOUT IN SITE-SPECIFIC 
TITLE    2 DNA CLEAVAGE BY A RESTRICTION ENDONUCLEASE                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-D(P*AP*AP*GP*AP*(5CM)P*IP*TP*CP*TP*T)-3');         
COMPND   3 CHAIN: C;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: DNA (5'-D(*AP*AP*AP*GP*AP*(5CM)P*IP*TP*CP*TP*T)-3');       
COMPND   7 CHAIN: D;                                                            
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: ENDONUCLEASE ECORV (3.1.21.4);                             
COMPND  11 CHAIN: A, B;                                                         
COMPND  12 EC: 3.1.21.4;                                                        
COMPND  13 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 SYNTHETIC: YES;                                                      
SOURCE   5 MOL_ID: 3;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   7 ORGANISM_TAXID: 562;                                                 
SOURCE   8 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   9 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    COMPLEX ENDONUCLEASE ECORV (3.1.21.4)-DNA, HYDROLASE-DNA COMPLEX      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.J.PERONA,A.M.MARTIN                                                 
REVDAT   4   02-AUG-23 1BSU    1       REMARK LINK                              
REVDAT   3   20-NOV-19 1BSU    1       LINK                                     
REVDAT   2   24-FEB-09 1BSU    1       VERSN                                    
REVDAT   1   09-SEP-98 1BSU    0                                                
JRNL        AUTH   A.M.MARTIN,M.D.SAM,N.O.REICH,J.J.PERONA                      
JRNL        TITL   STRUCTURAL AND ENERGETIC ORIGINS OF INDIRECT READOUT IN      
JRNL        TITL 2 SITE-SPECIFIC DNA CLEAVAGE BY A RESTRICTION ENDONUCLEASE.    
JRNL        REF    NAT.STRUCT.BIOL.              V.   6   269 1999              
JRNL        REFN                   ISSN 1072-8368                               
JRNL        PMID   10074946                                                     
JRNL        DOI    10.1038/6707                                                 
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   N.C.HORTON,J.J.PERONA                                        
REMARK   1  TITL   METAL ION MEDIATED SUBSTRATE-ASSISTED CATALYSIS IN TYPE II   
REMARK   1  TITL 2 RESTRICTION ENDONUCLEASES                                    
REMARK   1  REF    PROC.NATL.ACAD.SCI.USA        V.  95 13489 1998              
REMARK   1  REFN                   ISSN 0027-8424                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   J.J.PERONA,A.M.MARTIN                                        
REMARK   1  TITL   CONFORMATIONAL TRANSITIONS AND STRUCTURAL DEFORMABILITY OF   
REMARK   1  TITL 2 ECORV ENDONUCLEASE REVEALED BY CRYSTALLOGRAPHIC ANALYSIS     
REMARK   1  REF    J.MOL.BIOL.                   V. 273   207 1997              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 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) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 6.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 1.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 27232                          
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 SET) : 0.183                           
REMARK   3   FREE R VALUE                     : 0.258                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
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            : 3634                                    
REMARK   3   NUCLEIC ACID ATOMS       : 427                                     
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 218                                     
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) : 0.011                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.910                           
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:                                           
REMARK   3  THE AMIMO ACID SIDE CHAINS LISTED IN REMARK 470 APPEAR TO           
REMARK   3  BE PARTIALLY OR COMPLETELY DISORDERED.                              
REMARK   4                                                                      
REMARK   4 1BSU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB.                                
REMARK 100 THE DEPOSITION ID IS D_1000172060.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-AUG-95                          
REMARK 200  TEMPERATURE           (KELVIN) : 293                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : MIRRORS                            
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : R-AXIS                             
REMARK 200  DATA SCALING SOFTWARE          : R-AXIS                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 28884                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 73.0                               
REMARK 200  DATA REDUNDANCY                : 2.000                              
REMARK 200  R MERGE                    (I) : 0.09200                            
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: OTHER                        
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: PDB 1AZ0                                             
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.70                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.5, TEMPERATURE 293K                 
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 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     ALA A   142                                                      
REMARK 465     THR A   143                                                      
REMARK 465     ARG A   144                                                      
REMARK 465     LYS A   145                                                      
REMARK 465     SER A   146                                                      
REMARK 465     SER A   147                                                      
REMARK 465     LEU A   148                                                      
REMARK 465     LYS A   245                                                      
REMARK 465     ASN B    15                                                      
REMARK 465     GLN B    16                                                      
REMARK 465     LYS B    17                                                      
REMARK 465     TYR B    18                                                      
REMARK 465     LYS B    98                                                      
REMARK 465     GLU B    99                                                      
REMARK 465     ASN B   100                                                      
REMARK 465     GLU B   101                                                      
REMARK 465     LYS B   102                                                      
REMARK 465     ALA B   142                                                      
REMARK 465     THR B   143                                                      
REMARK 465     ARG B   144                                                      
REMARK 465     LYS B   145                                                      
REMARK 465     SER B   146                                                      
REMARK 465     LYS B   245                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470      DA D 801    O5'                                                 
REMARK 470     GLN A  16    CG   CD   OE1  NE2                                  
REMARK 470     LYS A  17    CG   CD   CE   NZ                                   
REMARK 470     ASP A  19    CG   OD1  OD2                                       
REMARK 470     GLU A  27    CG   CD   OE1  OE2                                  
REMARK 470     LYS A  29    CG   CD   CE   NZ                                   
REMARK 470     SER A  35    OG                                                  
REMARK 470     LYS A  38    CG   CD   CE   NZ                                   
REMARK 470     LYS A  54    CG   CD   CE   NZ                                   
REMARK 470     GLU A  57    CG   CD   OE1  OE2                                  
REMARK 470     LYS A  67    CG   CD   CE   NZ                                   
REMARK 470     GLN A  68    CG   CD   OE1  NE2                                  
REMARK 470     ASN A  84    CG   OD1  ND2                                       
REMARK 470     LYS A  85    CG   CD   CE   NZ                                   
REMARK 470     LYS A  98    CG   CD   CE   NZ                                   
REMARK 470     GLU A  99    CG   CD   OE1  OE2                                  
REMARK 470     ASN A 100    CG   OD1  ND2                                       
REMARK 470     GLU A 101    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 102    CG   CD   CE   NZ                                   
REMARK 470     ARG A 140    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS A 149    CG   CD   CE   NZ                                   
REMARK 470     ASN A 154    CG   OD1  ND2                                       
REMARK 470     GLU A 158    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 161    CG   CD   CE   NZ                                   
REMARK 470     LYS A 164    CG   CD   CE   NZ                                   
REMARK 470     LYS A 197    CG   CD   CE   NZ                                   
REMARK 470     LYS A 203    CG   CD   CE   NZ                                   
REMARK 470     GLN A 224    CG   CD   OE1  NE2                                  
REMARK 470     ASN A 227    CG   OD1  ND2                                       
REMARK 470     ARG A 242    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     TYR B  12    CG   CD1  CD2  CE1  CE2  CZ   OH                    
REMARK 470     ASP B  13    CG   OD1  OD2                                       
REMARK 470     GLU B  14    CG   CD   OE1  OE2                                  
REMARK 470     ASP B  19    CG   OD1  OD2                                       
REMARK 470     LYS B  29    CG   CD   CE   NZ                                   
REMARK 470     SER B  35    OG                                                  
REMARK 470     LYS B  38    CG   CD   CE   NZ                                   
REMARK 470     VAL B  39    CG1  CG2                                            
REMARK 470     GLU B  57    CG   CD   OE1  OE2                                  
REMARK 470     LYS B  58    CG   CD   CE   NZ                                   
REMARK 470     LYS B  67    CG   CD   CE   NZ                                   
REMARK 470     GLN B  68    CG   CD   OE1  NE2                                  
REMARK 470     GLU B  82    CG   CD   OE1  OE2                                  
REMARK 470     ASN B  84    CG   OD1  ND2                                       
REMARK 470     LYS B  85    CG   CD   CE   NZ                                   
REMARK 470     ASN B  97    CG   OD1  ND2                                       
REMARK 470     LYS B 119    CG   CD   CE   NZ                                   
REMARK 470     ARG B 140    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS B 149    CG   CD   CE   NZ                                   
REMARK 470     ASN B 152    CG   OD1  ND2                                       
REMARK 470     ASN B 154    CG   OD1  ND2                                       
REMARK 470     GLU B 158    CG   CD   OE1  OE2                                  
REMARK 470     LYS B 164    CG   CD   CE   NZ                                   
REMARK 470     LYS B 197    CG   CD   CE   NZ                                   
REMARK 470     GLU B 201    CG   CD   OE1  OE2                                  
REMARK 470     LYS B 203    CG   CD   CE   NZ                                   
REMARK 470     GLN B 224    CG   CD   OE1  NE2                                  
REMARK 470     ASN B 227    CG   OD1  ND2                                       
REMARK 470     ASP B 228    CG   OD1  OD2                                       
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    LEU A  40   CA  -  CB  -  CG  ANGL. DEV. = -15.0 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    SER A  35       53.14    -94.03                                   
REMARK 500    ASN A  70       51.53   -117.31                                   
REMARK 500    ASN A 100      -13.89     96.34                                   
REMARK 500    SER A 112     -116.99   -101.09                                   
REMARK 500    ASN A 117      -18.37    -32.64                                   
REMARK 500    ASN A 154        6.86    -68.93                                   
REMARK 500    THR A 187       67.12     32.83                                   
REMARK 500    LYS A 229      -93.86   -112.55                                   
REMARK 500    ASN B  70       53.82   -117.34                                   
REMARK 500    GLU B  82       78.82   -113.71                                   
REMARK 500    SER B 112     -117.94    -91.87                                   
REMARK 500    ASN B 117      -25.95    -37.02                                   
REMARK 500    ILE B 153       96.53    -63.02                                   
REMARK 500    ASN B 154       -7.63    146.03                                   
REMARK 500    THR B 187       73.95     26.64                                   
REMARK 500    LYS B 229      -90.23   -128.66                                   
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                              CA A 301  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DI C 907   OP1                                                    
REMARK 620 2 ASP A  74   OD1 156.3                                              
REMARK 620 3 ASP A  74   OD2 150.5  49.9                                        
REMARK 620 4 ASP A  90   OD1  99.8  75.2  69.3                                  
REMARK 620 5 ASP A  90   OD2  69.4 119.0  83.6  49.8                            
REMARK 620 6 HOH A 388   O    85.6 117.3  77.1 119.2  78.0                      
REMARK 620 7 HOH A 389   O    92.3  81.5 111.8 147.1 159.5  91.9                
REMARK 620 8 HOH A 397   O    77.3  79.0 125.4  81.5 111.4 155.4  71.5          
REMARK 620 N                    1     2     3     4     5     6     7           
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA B 300  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DI D 807   OP1                                                    
REMARK 620 2 ASP B  74   OD1 171.3                                              
REMARK 620 3 ASP B  74   OD2 143.8  44.9                                        
REMARK 620 4 ASP B  90   OD1 101.8  80.5  75.4                                  
REMARK 620 5 ASP B  90   OD2  74.4 112.7  77.4  49.0                            
REMARK 620 6 HOH B 375   O   100.1  76.6  91.6 156.6 147.6                      
REMARK 620 7 HOH B 388   O    82.3 104.3  67.5 115.6  72.2  75.4                
REMARK 620 8 HOH B 392   O    80.4  91.8 132.9  80.8 115.1  94.8 158.4          
REMARK 620 N                    1     2     3     4     5     6     7           
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 300                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 301                  
DBREF  1BSU A    2   245  UNP    P04390   T2E5_ECOLI       1    244             
DBREF  1BSU B    2   245  UNP    P04390   T2E5_ECOLI       1    244             
DBREF  1BSU C  902   911  PDB    1BSU     1BSU           902    911             
DBREF  1BSU D  801   811  PDB    1BSU     1BSU           801    811             
SEQRES   1 C   10   DA  DA  DG  DA 5CM  DI  DT  DC  DT  DT                      
SEQRES   1 D   11   DA  DA  DA  DG  DA 5CM  DI  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                      
MODRES 1BSU 5CM C  906   DC                                                     
MODRES 1BSU 5CM D  806   DC                                                     
HET    5CM  C 906      20                                                       
HET    5CM  D 806      20                                                       
HET     CA  A 301       1                                                       
HET     CA  B 300       1                                                       
HETNAM     5CM 5-METHYL-2'-DEOXY-CYTIDINE-5'-MONOPHOSPHATE                      
HETNAM      CA CALCIUM ION                                                      
FORMUL   1  5CM    2(C10 H16 N3 O7 P)                                           
FORMUL   5   CA    2(CA 2+)                                                     
FORMUL   7  HOH   *218(H2 O)                                                    
HELIX    1   1 LEU A    3  LYS A   17  1                                  15    
HELIX    2   2 THR A   37  HIS A   59  1                                  23    
HELIX    3   3 PRO A   80  GLU A   82  5                                   3    
HELIX    4   4 PHE A  125  GLN A  127  5                                   3    
HELIX    5   5 ILE A  153  GLU A  158  5                                   6    
HELIX    6   6 LYS A  173  ILE A  176  1                                   4    
HELIX    7   7 TYR A  196  GLU A  201  1                                   6    
HELIX    8   8 GLU A  209  ARG A  217  1                                   9    
HELIX    9   9 SER A  223  ARG A  226  1                                   4    
HELIX   10  10 ILE A  233  TYR A  241  1                                   9    
HELIX   11  11 LEU B    3  ASP B   13  1                                  11    
HELIX   12  12 THR B   37  HIS B   59  1                                  23    
HELIX   13  13 PHE B  125  GLN B  127  5                                   3    
HELIX   14  14 LEU B  156  GLU B  158  5                                   3    
HELIX   15  15 LYS B  173  ILE B  176  1                                   4    
HELIX   16  16 TYR B  196  GLU B  201  1                                   6    
HELIX   17  17 GLU B  209  ASN B  218  1                                  10    
HELIX   18  18 SER B  223  ASP B  228  1                                   6    
HELIX   19  19 ILE B  233  TYR B  241  1                                   9    
SHEET    1   A 2 GLY A  22  ILE A  24  0                                        
SHEET    2   A 2 ILE A  30  PRO A  32 -1  N  TYR A  31   O  ILE A  23           
SHEET    1   B 5 ILE A  62  GLU A  64  0                                        
SHEET    2   B 5 PHE A  75  TYR A  78 -1  N  TYR A  78   O  ILE A  62           
SHEET    3   B 5 LYS A  86  THR A  96 -1  N  ILE A  89   O  PHE A  75           
SHEET    4   B 5 TYR A 128  THR A 139  1  N  ILE A 129   O  LYS A  86           
SHEET    5   B 5 VAL A 166  ASP A 172 -1  N  GLN A 171   O  ILE A 133           
SHEET    1   C 3 GLY B  22  ILE B  24  0                                        
SHEET    2   C 3 LYS B  29  PRO B  32 -1  N  TYR B  31   O  ILE B  23           
SHEET    3   C 3 THR B 150  ASN B 152 -1  N  TYR B 151   O  ILE B  30           
SHEET    1   D 5 ILE B  62  GLU B  64  0                                        
SHEET    2   D 5 PHE B  75  TYR B  78 -1  N  TYR B  78   O  ILE B  62           
SHEET    3   D 5 LYS B  86  THR B  96 -1  N  ILE B  89   O  PHE B  75           
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  GLN B 171   O  ILE B 133           
LINK         O3'  DA C 905                 P   5CM C 906     1555   1555  1.60  
LINK         O3' 5CM C 906                 P    DI C 907     1555   1555  1.61  
LINK         O3'  DA D 805                 P   5CM D 806     1555   1555  1.58  
LINK         O3' 5CM D 806                 P    DI D 807     1555   1555  1.60  
LINK         OP1  DI C 907                CA    CA A 301     1555   1555  2.44  
LINK         OP1  DI D 807                CA    CA B 300     1555   1555  2.35  
LINK         OD1 ASP A  74                CA    CA A 301     1555   1555  2.25  
LINK         OD2 ASP A  74                CA    CA A 301     1555   1555  2.78  
LINK         OD1 ASP A  90                CA    CA A 301     1555   1555  2.62  
LINK         OD2 ASP A  90                CA    CA A 301     1555   1555  2.59  
LINK        CA    CA A 301                 O   HOH A 388     1555   1555  2.29  
LINK        CA    CA A 301                 O   HOH A 389     1555   1555  2.60  
LINK        CA    CA A 301                 O   HOH A 397     1555   1555  2.21  
LINK         OD1 ASP B  74                CA    CA B 300     1555   1555  2.34  
LINK         OD2 ASP B  74                CA    CA B 300     1555   1555  3.09  
LINK         OD1 ASP B  90                CA    CA B 300     1555   1555  2.65  
LINK         OD2 ASP B  90                CA    CA B 300     1555   1555  2.59  
LINK        CA    CA B 300                 O   HOH B 375     1555   1555  2.59  
LINK        CA    CA B 300                 O   HOH B 388     1555   1555  1.95  
LINK        CA    CA B 300                 O   HOH B 392     1555   1555  2.28  
CISPEP   1 TYR A   72    PRO A   73          0         0.74                     
CISPEP   2 TYR B   72    PRO B   73          0         0.76                     
SITE     1 AC1  6 ASP B  74  ASP B  90  HOH B 375  HOH B 388                    
SITE     2 AC1  6 HOH B 392   DI D 807                                          
SITE     1 AC2  6 ASP A  74  ASP A  90  HOH A 388  HOH A 389                    
SITE     2 AC2  6 HOH A 397   DI C 907                                          
CRYST1   50.300   64.000   49.100 109.10 108.10  96.50 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      0.019881  0.002265  0.007978        0.00000                         
SCALE2      0.000000  0.015726  0.006535        0.00000                         
SCALE3      0.000000  0.000000  0.023203        0.00000