HEADER    HYDROLASE                               18-SEP-98   1VSL              
TITLE     ASV INTEGRASE CORE DOMAIN D64N MUTATION WITH ZINC CATION              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (INTEGRASE);                                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: CATALYTIC CORE DOMAIN;                                     
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ROUS SARCOMA VIRUS (STRAIN SCHMIDT-RUPPIN);     
SOURCE   3 ORGANISM_TAXID: 11889;                                               
SOURCE   4 STRAIN: SCHMIDT-RUPPIN;                                              
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_PLASMID: PRC23IN(52-207)                           
KEYWDS    ENDONUCLEASE, TRANSFERASE, HYDROLASE                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.LUBKOWSKI,F.YANG,J.ALEXANDRATOS,A.WLODAWER                          
REVDAT   5   23-AUG-23 1VSL    1       REMARK                                   
REVDAT   4   03-NOV-21 1VSL    1       REMARK SEQADV LINK                       
REVDAT   3   24-FEB-09 1VSL    1       VERSN                                    
REVDAT   2   29-DEC-99 1VSL    4       HEADER COMPND REMARK JRNL                
REVDAT   2 2                   4       ATOM   SOURCE SEQRES                     
REVDAT   1   23-SEP-98 1VSL    0                                                
JRNL        AUTH   J.LUBKOWSKI,F.YANG,J.ALEXANDRATOS,G.MERKEL,R.A.KATZ,         
JRNL        AUTH 2 K.GRAVUER,A.M.SKALKA,A.WLODAWER                              
JRNL        TITL   STRUCTURAL BASIS FOR INACTIVATING MUTATIONS AND PH-DEPENDENT 
JRNL        TITL 2 ACTIVITY OF AVIAN SARCOMA VIRUS INTEGRASE.                   
JRNL        REF    J.BIOL.CHEM.                  V. 273 32685 1998              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   9830010                                                      
JRNL        DOI    10.1074/JBC.273.49.32685                                     
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 100000.000                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.1000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 86.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 7739                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : FREE R                          
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.156                           
REMARK   3   FREE R VALUE                     : 0.244                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 788                             
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           : 8                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.30                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 688                          
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2130                       
REMARK   3   BIN FREE R VALUE                    : 0.2790                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 9.70                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 74                           
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            : 1125                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 100                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 34.40                          
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) : 0.00                            
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) : 0.015                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.750                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 25.60                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 2.390                           
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  : PARHCSDX_FY.PRO                                
REMARK   3  PARAMETER FILE  2  : PARAM19.SOLV                                   
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : TOPHCSDX_FY.PRO                                
REMARK   3  TOPOLOGY FILE  2   : TOPH19.SOLV                                    
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1VSL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB.                               
REMARK 100 THE DEPOSITION ID IS D_1000008388.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-JAN-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 295                                
REMARK 200  PH                             : 5.6                                
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          : ENRAF-NONIUS FR591                 
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : DOUBLE MIRRORS                     
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MACSCIENCE                         
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 33008                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.8                               
REMARK 200  DATA REDUNDANCY                : 3.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.08000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.8000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.19                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.26                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.33600                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.300                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1ASV                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 38.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.52                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 4000, 10% ISOPROPANOL, 0.1M NA   
REMARK 280  CITRATE PH 5.6                                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+3/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+3/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-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       39.82550            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       33.57950            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       33.57950            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       59.73825            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       33.57950            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       33.57950            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       19.91275            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       33.57950            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       33.57950            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       59.73825            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       33.57950            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       33.57950            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       19.91275            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       39.82550            
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 300 REMARK: THE AUTHORS MAINTAIN THAT THE BIOLOGICAL UNIT IS NOT         
REMARK 300 YET KNOWN. THE MINIMUM MULTIMER IS BELIEVED TO CONTAIN               
REMARK 300 AT LEAST THIS DIMER, SHOWN IN BOTH HIV-1 AND ASV                     
REMARK 300 INTEGRASE CORE DOMAIN STRUCTURES.                                    
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       79.65100            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   NH2  ARG A    95     OXT  PHE A   199     4565     2.01            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    HIS A 198   CG    HIS A 198   CD2     0.067                       
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    HIS A  93   CE1 -  NE2 -  CD2 ANGL. DEV. =   5.3 DEGREES          
REMARK 500    HIS A 104   CE1 -  NE2 -  CD2 ANGL. DEV. =   6.4 DEGREES          
REMARK 500    HIS A 104   CG  -  CD2 -  NE2 ANGL. DEV. =  -8.8 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    ALA A  84      -70.31    -70.90                                   
REMARK 500    SER A  86       18.60     58.36                                   
REMARK 500    PRO A 147      120.57    -39.27                                   
REMARK 500    ASN A 149      105.32    -28.37                                   
REMARK 500    LYS A 178      -98.76   -109.19                                   
REMARK 500    HIS A 198       49.77    -89.76                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 GLY A   56     PRO A   57                 -122.64                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 201  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 103   ND1                                                    
REMARK 620 2 HOH A 206   O   103.0                                              
REMARK 620 3 HOH A 238   O   108.7 117.1                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 200  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 121   OD2                                                    
REMARK 620 2 HOH A 210   O    97.5                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: ACT                                                 
REMARK 800 EVIDENCE_CODE: AUTHOR                                                
REMARK 800 SITE_DESCRIPTION: ACTIVE SITE                                        
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 200                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 201                  
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE APPARENT DISCREPANCY BETWEEN THE SEQUENCE PRESENTED              
REMARK 999 HERE AND THE "POL_RSVP" SEQUENCE IS A RESULT OF VIRAL                
REMARK 999 STRAIN VARIATION. THE STRAIN USED FOR THIS WORK, "ROUS               
REMARK 999 SARCOMA VIRUS SCHMIDT-RUPPIN B", COMPARED TO "POL-RSVP"              
REMARK 999 SEQUENCE DIFFERS AT TWO POSITIONS WITH THE CONSERVATIVE              
REMARK 999 AMINO ACID RESIDUE DIFFERENCES NOTED (VAL->ALA101 & ARG->            
REMARK 999 LYS166). MUTATION D64N ENGINEERED FOR THIS STUDY.                    
DBREF  1VSL A   54   199  UNP    P03354   POL_RSVP       626    771             
SEQADV 1VSL ASN A   64  UNP  P03354    ASP   636 ENGINEERED MUTATION            
SEQADV 1VSL ALA A  101  UNP  P03354    VAL   673 SEE REMARK 999                 
SEQADV 1VSL LYS A  166  UNP  P03354    ARG   738 SEE REMARK 999                 
SEQRES   1 A  146  GLY LEU GLY PRO LEU GLN ILE TRP GLN THR ASN PHE THR          
SEQRES   2 A  146  LEU GLU PRO ARG MET ALA PRO ARG SER TRP LEU ALA VAL          
SEQRES   3 A  146  THR VAL ASP THR ALA SER SER ALA ILE VAL VAL THR GLN          
SEQRES   4 A  146  HIS GLY ARG VAL THR SER VAL ALA ALA GLN HIS HIS TRP          
SEQRES   5 A  146  ALA THR ALA ILE ALA VAL LEU GLY ARG PRO LYS ALA ILE          
SEQRES   6 A  146  LYS THR ASP ASN GLY SER CYS PHE THR SER LYS SER THR          
SEQRES   7 A  146  ARG GLU TRP LEU ALA ARG TRP GLY ILE ALA HIS THR THR          
SEQRES   8 A  146  GLY ILE PRO GLY ASN SER GLN GLY GLN ALA MET VAL GLU          
SEQRES   9 A  146  ARG ALA ASN ARG LEU LEU LYS ASP LYS ILE ARG VAL LEU          
SEQRES  10 A  146  ALA GLU GLY ASP GLY PHE MET LYS ARG ILE PRO THR SER          
SEQRES  11 A  146  LYS GLN GLY GLU LEU LEU ALA LYS ALA MET TYR ALA LEU          
SEQRES  12 A  146  ASN HIS PHE                                                  
HET     ZN  A 200       1                                                       
HET     ZN  A 201       1                                                       
HETNAM      ZN ZINC ION                                                         
FORMUL   2   ZN    2(ZN 2+)                                                     
FORMUL   4  HOH   *100(H2 O)                                                    
HELIX    1   1 PRO A   69  MET A   71  5                                   3    
HELIX    2   2 SER A   98  LEU A  112  1                                  15    
HELIX    3   3 SER A  124  THR A  127  1                                   4    
HELIX    4   4 LYS A  129  TRP A  138  1                                  10    
HELIX    5   5 SER A  150  ASP A  174  1                                  25    
HELIX    6   6 THR A  182  ASN A  197  1                                  16    
SHEET    1   A 5 ILE A  88  HIS A  93  0                                        
SHEET    2   A 5 TRP A  76  ASP A  82 -1  N  THR A  80   O  VAL A  89           
SHEET    3   A 5 ILE A  60  LEU A  67 -1  N  THR A  66   O  LEU A  77           
SHEET    4   A 5 ALA A 117  LYS A 119  1  N  ALA A 117   O  TRP A  61           
SHEET    5   A 5 ALA A 141  THR A 143  1  N  ALA A 141   O  ILE A 118           
LINK         ND1 HIS A 103                ZN    ZN A 201     1555   1555  2.60  
LINK         OD2 ASP A 121                ZN    ZN A 200     1555   1555  2.07  
LINK        ZN    ZN A 200                 O   HOH A 210     1555   1555  2.65  
LINK        ZN    ZN A 201                 O   HOH A 206     1555   1555  2.43  
LINK        ZN    ZN A 201                 O   HOH A 238     1555   1555  2.67  
CISPEP   1 ALA A   72    PRO A   73          0         9.37                     
SITE     1 ACT  3 ASN A  64  ASP A 121  GLU A 157                               
SITE     1 AC1  2 ASP A 121  HOH A 210                                          
SITE     1 AC2  3 HIS A 103  HOH A 206  HOH A 238                               
CRYST1   67.159   67.159   79.651  90.00  90.00  90.00 P 43 21 2     8          
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      0.014890  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014890  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012555        0.00000