PDB Short entry for 4B20
HEADER    HYDROLASE                               12-JUL-12   4B20              
TITLE     STRUCTURAL BASIS OF DNA LOOP RECOGNITION BY ENDONUCLEASE V            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ENDONUCLEASE V;                                            
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: DEOXYINOSINE 3'ENDONUCLEASE, DEOXYRIBONUCLEASE V, DNASE V;  
COMPND   5 EC: 3.1.21.7;                                                        
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: 5'-D(*GP*CP*GP*AP*CP*AP*GP)-3';                            
COMPND   9 CHAIN: C, F;                                                         
COMPND  10 MOL_ID: 3;                                                           
COMPND  11 MOLECULE: 5'-D(*AP*TP*CP*TP*TP*GP*TP*CP*GP*CP)-3';                   
COMPND  12 CHAIN: D, G                                                          
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: THERMOTOGA MARITIMA;                            
SOURCE   3 ORGANISM_TAXID: 2336;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE   7 MOL_ID: 2;                                                           
SOURCE   8 SYNTHETIC: YES;                                                      
SOURCE   9 MOL_ID: 3;                                                           
SOURCE  10 SYNTHETIC: YES                                                       
KEYWDS    HYDROLASE                                                             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    I.ROSNES,A.D.ROWE,R.J.FORSTROM,I.ALSETH,M.BJORAS,B.DALHUS             
REVDAT   1   17-APR-13 4B20    0                                                
JRNL        AUTH   I.ROSNES,A.D.ROWE,E.S.VIK,R.J.FORSTROM,I.ALSETH,M.BJORAS,    
JRNL        AUTH 2 B.DALHUS                                                     
JRNL        TITL   STRUCTURAL BASIS OF DNA LOOP RECOGNITION BY ENDONUCLEASE V.  
JRNL        REF    STRUCTURE                     V.  21   257 2013              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   23313664                                                     
JRNL        DOI    10.1016/J.STR.2012.12.007                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.75 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : NULL                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.75                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 60.0                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.0                            
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 88.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 17361                          
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) : 0.2274                          
REMARK   3   FREE R VALUE                     : 0.2906                          
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.3                             
REMARK   3   FREE R VALUE TEST SET COUNT      : 843                             
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           : 10                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.75                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.85                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 70                           
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1283                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.41                         
REMARK   3   BIN FREE R VALUE                    : 0.35                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 4.7                          
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 63                           
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            : 3580                                    
REMARK   3   NUCLEIC ACID ATOMS       : 629                                     
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 79                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 48.6                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -33.456                                              
REMARK   3    B22 (A**2) : 28.833                                               
REMARK   3    B33 (A**2) : 4.623                                                
REMARK   3    B12 (A**2) : 0.00                                                 
REMARK   3    B13 (A**2) : 0.00                                                 
REMARK   3    B23 (A**2) : 0.00                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.40                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.68                            
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) : 0.49                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.59                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.0073                          
REMARK   3   BOND ANGLES            (DEGREES) : 1.349                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.45                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.204                           
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) :  1.27 ;  1.5                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) :  2.18 ;  2.0                 
REMARK   3   SIDE-CHAIN BOND              (A**2) :  1.74 ;  2.0                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) :  2.80 ;  2.5                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : 0.330552                                             
REMARK   3   BSOL        : 41.4369                                              
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  : CNS_TOPPAR:PROTEIN_REP.PARAM                   
REMARK   3  PARAMETER FILE  2  : CNS_TOPPAR:WATER_REP.PARAM                     
REMARK   3  PARAMETER FILE  3  : CNS_TOPPAR:ION.PARAM                           
REMARK   3  PARAMETER FILE  4  : CNS_TOPPAR:INOSIN.PARAM                        
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : CNS_TOPPAR:PROTEIN.TOP                         
REMARK   3  TOPOLOGY FILE  2   : INOSIN.TOP                                     
REMARK   3  TOPOLOGY FILE  3   : CNS_TOPPAR:WATER.TOP                           
REMARK   3  TOPOLOGY FILE  4   : CNS_TOPPAR:ION.TOP                             
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4B20 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 12-JUL-12.                  
REMARK 100 THE PDBE ID CODE IS EBI-53330.                                       
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : BESSY                              
REMARK 200  BEAMLINE                       : 14.1                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9184                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD(MX-225)                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 19328                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.75                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 60.00                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.0                                
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.1                               
REMARK 200  DATA REDUNDANCY                : 3.9                                
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.13                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.60                              
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.75                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.90                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.5                                
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.45                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.10                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER                        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 59.22                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.04                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+1/2,-Z+1/2                                     
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  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       27.61550            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       67.68500            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       97.49650            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       27.61550            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       67.68500            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       97.49650            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       27.61550            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       67.68500            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       97.49650            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       27.61550            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       67.68500            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       97.49650            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3, 4                                              
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, D, C                               
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                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, G, F                               
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                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 7010 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 21580 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -37.4 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, D, C                               
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 -1.000000  0.000000  0.000000       55.23100            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 4                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 6780 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 21910 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -33.6 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, G, F                               
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 -1.000000  0.000000  0.000000       55.23100            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000      270.74000            
REMARK 350   BIOMT3   2  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     PHE A   225                                                      
REMARK 465     PHE B   225                                                      
REMARK 465      DG C     1                                                      
REMARK 465      DC D    17                                                      
REMARK 465      DG F     1                                                      
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     LEU A 224    CA   C    O    CB   CG   CD1  CD2                   
REMARK 470     LEU B 224    CA   C    O    CB   CG   CD1  CD2                   
REMARK 470      DC C   2    P    OP1  OP2                                       
REMARK 470      DC F   2    P    OP1  OP2                                       
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 D   8   OP3    DA D   8   P      -0.078                       
REMARK 500     DA G   8   OP3    DA G   8   P      -0.076                       
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    TYR A   3     -176.91   -178.82                                   
REMARK 500    HIS A   7     -172.77   -177.52                                   
REMARK 500    PRO A  13      -49.42    -23.93                                   
REMARK 500    GLU A  68      147.03   -171.57                                   
REMARK 500    GLU A  72      115.38   -172.81                                   
REMARK 500    PRO A  82      127.98    -38.60                                   
REMARK 500    GLU A 131       67.68     32.70                                   
REMARK 500    LEU A 142      -50.45   -127.34                                   
REMARK 500    ASP A 151       34.75    -91.89                                   
REMARK 500    ARG A 153      -25.19    -23.98                                   
REMARK 500    VAL A 189      -70.16    -55.21                                   
REMARK 500    LYS A 222     -100.38   -142.74                                   
REMARK 500    LEU B  67      -42.17   -142.87                                   
REMARK 500    GLU B  72      111.09   -176.99                                   
REMARK 500    LEU B 120       83.76   -164.56                                   
REMARK 500    ARG B 153      149.80    -39.42                                   
REMARK 500    CYS B 154       28.84     49.74                                   
REMARK 500    LYS B 222       77.37   -114.99                                   
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     DG C   7         0.08    SIDE CHAIN                              
REMARK 500     DG F   7         0.06    SIDE CHAIN                              
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 A1224  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  43   OD1                                                    
REMARK 620 2 ASP A 110   OD2  77.8                                              
REMARK 620 3  DG C   7   O3' 121.2  92.1                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B1224  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B  43   OD1                                                    
REMARK 620 2 ASP B 110   OD2 104.0                                              
REMARK 620 3  DG F   7   O3' 169.8  80.1                                        
REMARK 620 N                    1     2                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE  MG A1224                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE  MG B1224                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2W35   RELATED DB: PDB                                   
REMARK 900  STRUCTURES OF ENDONUCLEASE V WITH DNA REVEAL INITIATION             
REMARK 900   OF DEAMINATED ADENINE REPAIR                                       
REMARK 900 RELATED ID: 2W36   RELATED DB: PDB                                   
REMARK 900  STRUCTURES OF ENDONUCLEASE V WITH DNA REVEAL INITIATION             
REMARK 900   OF DEAMINATED ADENINE REPAIR                                       
DBREF  4B20 A    1   225  UNP    Q9X2H9   NFI_THEMA        1    225             
DBREF  4B20 B    1   225  UNP    Q9X2H9   NFI_THEMA        1    225             
DBREF  4B20 C    1     7  PDB    4B20     4B20             1      7             
DBREF  4B20 D    8    17  PDB    4B20     4B20             8     17             
DBREF  4B20 F    1     7  PDB    4B20     4B20             1      7             
DBREF  4B20 G    8    17  PDB    4B20     4B20             8     17             
SEQRES   1 A  225  MET ASP TYR ARG GLN LEU HIS ARG TRP ASP LEU PRO PRO          
SEQRES   2 A  225  GLU GLU ALA ILE LYS VAL GLN ASN GLU LEU ARG LYS LYS          
SEQRES   3 A  225  ILE LYS LEU THR PRO TYR GLU GLY GLU PRO GLU TYR VAL          
SEQRES   4 A  225  ALA GLY VAL ASP LEU SER PHE PRO GLY LYS GLU GLU GLY          
SEQRES   5 A  225  LEU ALA VAL ILE VAL VAL LEU GLU TYR PRO SER PHE LYS          
SEQRES   6 A  225  ILE LEU GLU VAL VAL SER GLU ARG GLY GLU ILE THR PHE          
SEQRES   7 A  225  PRO TYR ILE PRO GLY LEU LEU ALA PHE ARG GLU GLY PRO          
SEQRES   8 A  225  LEU PHE LEU LYS ALA TRP GLU LYS LEU ARG THR LYS PRO          
SEQRES   9 A  225  ASP VAL VAL VAL PHE ASP GLY GLN GLY LEU ALA HIS PRO          
SEQRES  10 A  225  ARG LYS LEU GLY ILE ALA SER HIS MET GLY LEU PHE ILE          
SEQRES  11 A  225  GLU ILE PRO THR ILE GLY VAL ALA LYS SER ARG LEU TYR          
SEQRES  12 A  225  GLY THR PHE LYS MET PRO GLU ASP LYS ARG CYS SER TRP          
SEQRES  13 A  225  SER TYR LEU TYR ASP GLY GLU GLU ILE ILE GLY CYS VAL          
SEQRES  14 A  225  ILE ARG THR LYS GLU GLY SER ALA PRO ILE PHE VAL SER          
SEQRES  15 A  225  PRO GLY HIS LEU MET ASP VAL GLU SER SER LYS ARG LEU          
SEQRES  16 A  225  ILE LYS ALA PHE THR LEU PRO GLY ARG ARG ILE PRO GLU          
SEQRES  17 A  225  PRO THR ARG LEU ALA HIS ILE TYR THR GLN ARG LEU LYS          
SEQRES  18 A  225  LYS GLY LEU PHE                                              
SEQRES   1 B  225  MET ASP TYR ARG GLN LEU HIS ARG TRP ASP LEU PRO PRO          
SEQRES   2 B  225  GLU GLU ALA ILE LYS VAL GLN ASN GLU LEU ARG LYS LYS          
SEQRES   3 B  225  ILE LYS LEU THR PRO TYR GLU GLY GLU PRO GLU TYR VAL          
SEQRES   4 B  225  ALA GLY VAL ASP LEU SER PHE PRO GLY LYS GLU GLU GLY          
SEQRES   5 B  225  LEU ALA VAL ILE VAL VAL LEU GLU TYR PRO SER PHE LYS          
SEQRES   6 B  225  ILE LEU GLU VAL VAL SER GLU ARG GLY GLU ILE THR PHE          
SEQRES   7 B  225  PRO TYR ILE PRO GLY LEU LEU ALA PHE ARG GLU GLY PRO          
SEQRES   8 B  225  LEU PHE LEU LYS ALA TRP GLU LYS LEU ARG THR LYS PRO          
SEQRES   9 B  225  ASP VAL VAL VAL PHE ASP GLY GLN GLY LEU ALA HIS PRO          
SEQRES  10 B  225  ARG LYS LEU GLY ILE ALA SER HIS MET GLY LEU PHE ILE          
SEQRES  11 B  225  GLU ILE PRO THR ILE GLY VAL ALA LYS SER ARG LEU TYR          
SEQRES  12 B  225  GLY THR PHE LYS MET PRO GLU ASP LYS ARG CYS SER TRP          
SEQRES  13 B  225  SER TYR LEU TYR ASP GLY GLU GLU ILE ILE GLY CYS VAL          
SEQRES  14 B  225  ILE ARG THR LYS GLU GLY SER ALA PRO ILE PHE VAL SER          
SEQRES  15 B  225  PRO GLY HIS LEU MET ASP VAL GLU SER SER LYS ARG LEU          
SEQRES  16 B  225  ILE LYS ALA PHE THR LEU PRO GLY ARG ARG ILE PRO GLU          
SEQRES  17 B  225  PRO THR ARG LEU ALA HIS ILE TYR THR GLN ARG LEU LYS          
SEQRES  18 B  225  LYS GLY LEU PHE                                              
SEQRES   1 C    7   DG  DC  DG  DA  DC  DA  DG                                  
SEQRES   1 D   10   DA  DT  DC  DT  DT  DG  DT  DC  DG  DC                      
SEQRES   1 F    7   DG  DC  DG  DA  DC  DA  DG                                  
SEQRES   1 G   10   DA  DT  DC  DT  DT  DG  DT  DC  DG  DC                      
HET     MG  A1224       1                                                       
HET     MG  B1224       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   7   MG    2(MG 2+)                                                     
FORMUL   8  HOH   *79(H2 O)                                                     
HELIX    1   1 PRO A   12  ARG A   24  1                                  13    
HELIX    2   2 LYS A   25  ILE A   27  5                                   3    
HELIX    3   3 LEU A   85  GLU A   98  1                                  14    
HELIX    4   4 GLY A  121  GLU A  131  1                                  11    
HELIX    5   5 ASP A  188  PHE A  199  1                                  12    
HELIX    6   6 PRO A  207  LEU A  220  1                                  14    
HELIX    7   7 PRO B   12  ARG B   24  1                                  13    
HELIX    8   8 LYS B   25  ILE B   27  5                                   3    
HELIX    9   9 LEU B   85  LEU B  100  1                                  16    
HELIX   10  10 GLY B  121  GLU B  131  1                                  11    
HELIX   11  11 ASP B  188  PHE B  199  1                                  12    
HELIX   12  12 PRO B  207  LEU B  220  1                                  14    
SHEET    1  AA 8 LYS A  65  GLU A  75  0                                        
SHEET    2  AA 8 GLU A  51  GLU A  60 -1  O  GLY A  52   N  GLY A  74           
SHEET    3  AA 8 TYR A  38  GLY A  48 -1  O  VAL A  39   N  LEU A  59           
SHEET    4  AA 8 VAL A 106  PHE A 109  1  O  VAL A 106   N  ALA A  40           
SHEET    5  AA 8 THR A 134  ALA A 138  1  O  ILE A 135   N  PHE A 109           
SHEET    6  AA 8 ILE A 179  PRO A 183 -1  O  PHE A 180   N  ALA A 138           
SHEET    7  AA 8 GLU A 164  ILE A 170 -1  O  CYS A 168   N  VAL A 181           
SHEET    8  AA 8 TRP A 156  ASP A 161 -1  O  SER A 157   N  VAL A 169           
SHEET    1  BA 8 ILE B  66  GLU B  75  0                                        
SHEET    2  BA 8 GLU B  51  GLU B  60 -1  O  GLY B  52   N  GLY B  74           
SHEET    3  BA 8 TYR B  38  GLY B  48 -1  O  VAL B  39   N  LEU B  59           
SHEET    4  BA 8 VAL B 106  ASP B 110  1  O  VAL B 106   N  ALA B  40           
SHEET    5  BA 8 THR B 134  ALA B 138  1  O  ILE B 135   N  PHE B 109           
SHEET    6  BA 8 ILE B 179  PRO B 183 -1  O  PHE B 180   N  ALA B 138           
SHEET    7  BA 8 ILE B 165  ARG B 171 -1  O  CYS B 168   N  VAL B 181           
SHEET    8  BA 8 SER B 155  TYR B 160 -1  O  SER B 155   N  ARG B 171           
LINK        MG    MG A1224                 OD1 ASP A  43     1555   1555  2.30  
LINK        MG    MG A1224                 OD2 ASP A 110     1555   1555  2.19  
LINK        MG    MG A1224                 O3'  DG C   7     1555   1555  2.09  
LINK        MG    MG B1224                 OD2 ASP B 110     1555   1555  1.99  
LINK        MG    MG B1224                 O3'  DG F   7     1555   1555  2.01  
LINK        MG    MG B1224                 OD1 ASP B  43     1555   1555  2.00  
CISPEP   1 TYR A   61    PRO A   62          0         0.02                     
CISPEP   2 TYR B   61    PRO B   62          0         0.10                     
SITE     1 AC1  4 ASP A  43  ASP A 110   DG C   7   DA D   8                    
SITE     1 AC2  3 ASP B  43  ASP B 110   DG F   7                               
CRYST1   55.231  135.370  194.993  90.00  90.00  90.00 I 2 2 2      16          
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      0.018106  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007387  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005128        0.00000