HEADER    HYDROLASE/INHIBITOR                     21-OCT-21   7SKR              
TITLE     BTSCOV-RF1.2004 PAPAIN-LIKE PROTEASE BOUND TO THE NON-COVALENT        
TITLE    2 INHIBITOR 37                                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 3C-LIKE PROTEINASE;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: GROWTH FACTOR-LIKE PEPTIDE,LEADER PROTEIN,NON-STRUCTURAL    
COMPND   5 PROTEIN 10,NON-STRUCTURAL PROTEIN 2,NON-STRUCTURAL PROTEIN 3,NON-    
COMPND   6 STRUCTURAL PROTEIN 4,NON-STRUCTURAL PROTEIN 6,NON-STRUCTURAL PROTEIN 
COMPND   7 7,NON-STRUCTURAL PROTEIN 8,NON-STRUCTURAL PROTEIN 9,PAPAIN-LIKE      
COMPND   8 PROTEINASE,P65 HOMOLOG;                                              
COMPND   9 EC: 3.4.19.12,3.4.22.69;                                             
COMPND  10 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BAT SARS COV RF1/2004;                          
SOURCE   3 ORGANISM_TAXID: 347537;                                              
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 469008                                      
KEYWDS    PAPAIN-LIKE PROTEASE, VIRAL PROTEIN, HYDROLASE-INHIBITOR COMPLEX      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    I.DURIE,J.SHEPARD,B.FREITAS,B.O'BOYLE,S.ENOS,S.D.PEGAN                
REVDAT   5   15-NOV-23 7SKR    1       REMARK                                   
REVDAT   4   18-OCT-23 7SKR    1       REMARK                                   
REVDAT   3   23-MAR-22 7SKR    1       JRNL                                     
REVDAT   2   09-MAR-22 7SKR    1       JRNL                                     
REVDAT   1   02-MAR-22 7SKR    0                                                
JRNL        AUTH   B.T.FREITAS,D.A.AHIADORME,R.S.BAGUL,I.A.DURIE,S.GHOSH,       
JRNL        AUTH 2 J.HILL,N.E.KRAMER,J.MURRAY,B.M.O'BOYLE,E.ONOBUN,M.G.PIRRONE, 
JRNL        AUTH 3 J.D.SHEPARD,S.ENOS,Y.P.SUBEDI,K.UPADHYAYA,R.A.TRIPP,         
JRNL        AUTH 4 B.S.CUMMINGS,D.CRICH,S.D.PEGAN                               
JRNL        TITL   EXPLORING NONCOVALENT PROTEASE INHIBITORS FOR THE TREATMENT  
JRNL        TITL 2 OF SEVERE ACUTE RESPIRATORY SYNDROME AND SEVERE ACUTE        
JRNL        TITL 3 RESPIRATORY SYNDROME-LIKE CORONAVIRUSES.                     
JRNL        REF    ACS INFECT DIS.               V.   8   596 2022              
JRNL        REFN                   ESSN 2373-8227                               
JRNL        PMID   35199517                                                     
JRNL        DOI    10.1021/ACSINFECDIS.1C00631                                  
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.89 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.18.2_3874                                   
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.89                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 38.62                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.340                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 16508                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.203                           
REMARK   3   R VALUE            (WORKING SET) : 0.201                           
REMARK   3   FREE R VALUE                     : 0.240                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.110                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 844                             
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 38.6200 -  5.2500    0.96     2734   141  0.1881 0.2195        
REMARK   3     2  5.2500 -  4.1700    0.99     2671   139  0.1597 0.1884        
REMARK   3     3  4.1700 -  3.6400    1.00     2631   135  0.1948 0.2294        
REMARK   3     4  3.6400 -  3.3100    1.00     2612   143  0.2204 0.2957        
REMARK   3     5  3.3100 -  3.0700    1.00     2584   151  0.2695 0.2998        
REMARK   3     6  3.0700 -  2.8900    0.94     2432   135  0.3027 0.3354        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.300            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.190           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 67.09                          
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :   NULL           NULL                                  
REMARK   3   ANGLE     :   NULL           NULL                                  
REMARK   3   CHIRALITY :   NULL           NULL                                  
REMARK   3   PLANARITY :   NULL           NULL                                  
REMARK   3   DIHEDRAL  :   NULL           NULL                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 7SKR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-OCT-21.                  
REMARK 100 THE DEPOSITION ID IS D_1000259999.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-DEC-20                          
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               : APS                                
REMARK 200  BEAMLINE                       : 22-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 300 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 16643                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.890                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY                : 13.70                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 15.5000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.95                     
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: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHENIX                                                
REMARK 200 STARTING MODEL: 3E9S                                                 
REMARK 200                                                                      
REMARK 200 REMARK: BIPYRAMIDAL CRYSTALS                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 75.36                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.99                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M TRIS-HCL PH 8.5, 0.6M SODIUM       
REMARK 280  FLUORIDE, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 279K           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 64 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z                                                 
REMARK 290       5555   Y,-X+Y,Z+1/3                                            
REMARK 290       6555   X-Y,X,Z+2/3                                             
REMARK 290       7555   Y,X,-Z+1/3                                              
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z+2/3                                          
REMARK 290      10555   -Y,-X,-Z+1/3                                            
REMARK 290      11555   -X+Y,Y,-Z                                               
REMARK 290      12555   X,X-Y,-Z+2/3                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       26.61133            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       53.22267            
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  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       26.61133            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       53.22267            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       26.61133            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000       53.22267            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       26.61133            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       53.22267            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3360 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 27710 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -59.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.500000 -0.866025  0.000000      -88.15300            
REMARK 350   BIOMT2   2 -0.866025 -0.500000  0.000000     -152.68547            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      -53.22267            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 513  LIES ON A SPECIAL POSITION.                          
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     GLY A    -2                                                      
REMARK 465     SER A    -1                                                      
REMARK 465     HIS A     0                                                      
REMARK 465     MET A     1                                                      
REMARK 465     LYS A   316                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     LEU A   76   N    CA   C    O    CB   CG   CD1                   
REMARK 480     LEU A   76   CD2                                                 
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   NZ   LYS A     7     OD1  OCS A   112     7554     1.30            
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    THR A  15      -49.69   -142.92                                   
REMARK 500    LYS A  44       45.65    -98.70                                   
REMARK 500    PHE A  96       77.82   -118.23                                   
REMARK 500    ALA A 108      127.55   -170.97                                   
REMARK 500    ASN A 178       73.34   -100.71                                   
REMARK 500    ALA A 231     -164.57   -106.50                                   
REMARK 500    GLU A 239       83.11   -150.56                                   
REMARK 500    LYS A 280      -90.57   -126.60                                   
REMARK 500    THR A 309      -59.30   -128.19                                   
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 403  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 190   SG                                                     
REMARK 620 2 CYS A 193   SG  108.6                                              
REMARK 620 3 CYS A 225   SG  109.8 110.5                                        
REMARK 620 4 CYS A 227   SG  108.3 109.2 110.3                                  
REMARK 620 N                    1     2     3                                   
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 7SKQ   RELATED DB: PDB                                   
DBREF  7SKR A    2   316  UNP    Q0QDZ2   Q0QDZ2_SARS   1536   1850             
SEQADV 7SKR GLY A   -2  UNP  Q0QDZ2              EXPRESSION TAG                 
SEQADV 7SKR SER A   -1  UNP  Q0QDZ2              EXPRESSION TAG                 
SEQADV 7SKR HIS A    0  UNP  Q0QDZ2              EXPRESSION TAG                 
SEQADV 7SKR MET A    1  UNP  Q0QDZ2              EXPRESSION TAG                 
SEQRES   1 A  319  GLY SER HIS MET GLU VAL LYS THR ILE LYS VAL PHE THR          
SEQRES   2 A  319  THR VAL ASP ASN THR ASN LEU HIS THR GLN LEU VAL ASP          
SEQRES   3 A  319  MET SER MET THR TYR GLY GLN HIS PHE GLY PRO THR TYR          
SEQRES   4 A  319  LEU ASP GLY ALA ASP VAL THR LYS VAL LYS PRO HIS VAL          
SEQRES   5 A  319  ASN HIS GLU GLY LYS THR PHE PHE VAL LEU PRO SER ASP          
SEQRES   6 A  319  ASP THR LEU ARG SER GLU ALA PHE GLU TYR TYR HIS THR          
SEQRES   7 A  319  LEU ASP GLU SER PHE LEU GLY ARG TYR MET SER ALA LEU          
SEQRES   8 A  319  ASN HIS THR LYS LYS TRP LYS PHE PRO GLN VAL GLY GLY          
SEQRES   9 A  319  LEU THR SER ILE LYS TRP ALA ASP ASN ASN OCS TYR LEU          
SEQRES  10 A  319  SER SER VAL LEU LEU ALA LEU GLN GLN ILE GLU VAL LYS          
SEQRES  11 A  319  PHE ASN ALA PRO ALA LEU GLN GLU ALA TYR TYR ARG ALA          
SEQRES  12 A  319  ARG ALA GLY ASP ALA ALA ASN PHE CYS ALA LEU ILE LEU          
SEQRES  13 A  319  ALA TYR SER ASN LYS THR VAL GLY GLU LEU GLY ASP VAL          
SEQRES  14 A  319  ARG GLU THR MET THR HIS LEU LEU GLN HIS ALA ASN LEU          
SEQRES  15 A  319  GLU SER ALA LYS ARG VAL LEU ASN LEU VAL CYS LYS HIS          
SEQRES  16 A  319  CYS GLY GLN LYS THR THR THR LEU MET GLY VAL GLU ALA          
SEQRES  17 A  319  VAL MET TYR MET GLY THR LEU SER TYR ASP GLU LEU LYS          
SEQRES  18 A  319  ALA GLY VAL SER ILE PRO CYS VAL CYS GLY ARG ASP ALA          
SEQRES  19 A  319  THR GLN TYR LEU VAL GLN GLN GLU SER SER PHE VAL MET          
SEQRES  20 A  319  MET SER ALA PRO PRO ALA GLU TYR LYS LEU GLN GLN GLY          
SEQRES  21 A  319  THR PHE LEU CYS ALA ASN GLU TYR THR GLY ASN TYR GLN          
SEQRES  22 A  319  CYS GLY HIS TYR THR HIS ILE THR ALA LYS GLU THR LEU          
SEQRES  23 A  319  TYR ARG ILE ASP GLY ALA HIS LEU THR LYS MET SER GLU          
SEQRES  24 A  319  TYR LYS GLY PRO VAL THR ASP VAL PHE TYR LYS GLU THR          
SEQRES  25 A  319  SER TYR THR THR THR ILE LYS                                  
MODRES 7SKR OCS A  112  CYS  MODIFIED RESIDUE                                   
HET    OCS  A 112       9                                                       
HET    9OZ  A 401      31                                                       
HET    DMS  A 402       4                                                       
HET     ZN  A 403       1                                                       
HET     ZN  A 404       1                                                       
HETNAM     OCS CYSTEINESULFONIC ACID                                            
HETNAM     9OZ N-[(2-METHOXYPYRIDIN-4-YL)METHYL]-2-[(1R)-1-                     
HETNAM   2 9OZ  (NAPHTHALEN-1-YL)ETHYL]-2-AZASPIRO[3.3]HEPTANE-6-               
HETNAM   3 9OZ  CARBOXAMIDE                                                     
HETNAM     DMS DIMETHYL SULFOXIDE                                               
HETNAM      ZN ZINC ION                                                         
FORMUL   1  OCS    C3 H7 N O5 S                                                 
FORMUL   2  9OZ    C26 H29 N3 O2                                                
FORMUL   3  DMS    C2 H6 O S                                                    
FORMUL   4   ZN    2(ZN 2+)                                                     
FORMUL   6  HOH   *25(H2 O)                                                     
HELIX    1 AA1 THR A   27  GLY A   33  1                                   7    
HELIX    2 AA2 HIS A   48  GLU A   52  5                                   5    
HELIX    3 AA3 ASP A   62  THR A   64  5                                   3    
HELIX    4 AA4 LEU A   65  HIS A   74  1                                  10    
HELIX    5 AA5 SER A   79  LYS A   92  1                                  14    
HELIX    6 AA6 ASN A  111  GLN A  122  1                                  12    
HELIX    7 AA7 ALA A  130  GLY A  143  1                                  14    
HELIX    8 AA8 ALA A  145  SER A  156  1                                  12    
HELIX    9 AA9 ASP A  165  GLN A  175  1                                  11    
HELIX   10 AB1 VAL A  203  ALA A  205  5                                   3    
HELIX   11 AB2 SER A  213  GLY A  220  1                                   8    
SHEET    1 AA1 5 HIS A  18  ASP A  23  0                                        
SHEET    2 AA1 5 THR A   5  THR A  11 -1  N  VAL A   8   O  GLN A  20           
SHEET    3 AA1 5 THR A  55  VAL A  58  1  O  PHE A  56   N  PHE A   9           
SHEET    4 AA1 5 THR A  35  LEU A  37 -1  N  TYR A  36   O  PHE A  57           
SHEET    5 AA1 5 ALA A  40  ASP A  41 -1  O  ALA A  40   N  LEU A  37           
SHEET    1 AA2 2 GLN A  98  VAL A  99  0                                        
SHEET    2 AA2 2 LEU A 102  THR A 103 -1  O  LEU A 102   N  VAL A  99           
SHEET    1 AA3 4 GLY A 194  MET A 201  0                                        
SHEET    2 AA3 4 LYS A 183  CYS A 190 -1  N  LEU A 188   O  LYS A 196           
SHEET    3 AA3 4 ASP A 230  GLU A 239 -1  O  THR A 232   N  VAL A 189           
SHEET    4 AA3 4 VAL A 221  PRO A 224 -1  N  ILE A 223   O  ALA A 231           
SHEET    1 AA4 4 GLY A 194  MET A 201  0                                        
SHEET    2 AA4 4 LYS A 183  CYS A 190 -1  N  LEU A 188   O  LYS A 196           
SHEET    3 AA4 4 ASP A 230  GLU A 239 -1  O  THR A 232   N  VAL A 189           
SHEET    4 AA4 4 TYR A 311  THR A 312 -1  O  TYR A 311   N  GLN A 238           
SHEET    1 AA5 7 MET A 207  MET A 209  0                                        
SHEET    2 AA5 7 PHE A 242  LEU A 254  1  O  MET A 244   N  TYR A 208           
SHEET    3 AA5 7 TYR A 297  LYS A 307 -1  O  TYR A 297   N  LEU A 254           
SHEET    4 AA5 7 CYS A 261  GLY A 267 -1  N  CYS A 261   O  PHE A 305           
SHEET    5 AA5 7 GLY A 272  ALA A 279 -1  O  ILE A 277   N  ALA A 262           
SHEET    6 AA5 7 LEU A 283  ASP A 287 -1  O  ILE A 286   N  HIS A 276           
SHEET    7 AA5 7 HIS A 290  MET A 294 -1  O  THR A 292   N  ARG A 285           
LINK         C   ASN A 111                 N   OCS A 112     1555   1555  1.33  
LINK         C   OCS A 112                 N   TYR A 113     1555   1555  1.33  
LINK         OD1 OCS A 112                ZN    ZN A 404     1555   1555  2.13  
LINK         SG  CYS A 190                ZN    ZN A 403     1555   1555  2.33  
LINK         SG  CYS A 193                ZN    ZN A 403     1555   1555  2.33  
LINK         SG  CYS A 225                ZN    ZN A 403     1555   1555  2.34  
LINK         SG  CYS A 227                ZN    ZN A 403     1555   1555  2.33  
CRYST1  176.306  176.306   79.834  90.00  90.00 120.00 P 64 2 2     12          
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      0.005672  0.003275  0.000000        0.00000                         
SCALE2      0.000000  0.006549  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012526        0.00000