HEADER    VIRAL PROTEIN                           22-MAY-20   7C6U              
TITLE     CRYSTAL STRUCTURE OF SARS-COV-2 COMPLEXED WITH GC376                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 3C-LIKE PROTEINASE;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: 3CL-PRO,3CLP,MAIN PROTEASE,MPRO,NON-STRUCTURAL PROTEIN 5,   
COMPND   5 NSP5,SARS CORONAVIRUS MAIN PROTEINASE;                               
COMPND   6 EC: 3.4.22.69;                                                       
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS   
SOURCE   3 2;                                                                   
SOURCE   4 ORGANISM_COMMON: 2019-NCOV;                                          
SOURCE   5 ORGANISM_TAXID: 2697049;                                             
SOURCE   6 GENE: REP, 1A-1B;                                                    
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI K-12;                            
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 83333;                                      
SOURCE   9 EXPRESSION_SYSTEM_STRAIN: K-12                                       
KEYWDS    SARS-COV-2, MAIN PROTEASE, INHIBITOR, VIRAL PROTEIN                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    L.FU,Y.FENG,J.QI,F.G.GAO                                              
REVDAT   5   06-NOV-24 7C6U    1       REMARK                                   
REVDAT   4   29-NOV-23 7C6U    1       REMARK                                   
REVDAT   3   10-MAR-21 7C6U    1       COMPND                                   
REVDAT   2   25-NOV-20 7C6U    1       JRNL                                     
REVDAT   1   02-SEP-20 7C6U    0                                                
JRNL        AUTH   L.FU,F.YE,Y.FENG,F.YU,Q.WANG,Y.WU,C.ZHAO,H.SUN,B.HUANG,      
JRNL        AUTH 2 P.NIU,H.SONG,Y.SHI,X.LI,W.TAN,J.QI,G.F.GAO                   
JRNL        TITL   BOTH BOCEPREVIR AND GC376 EFFICACIOUSLY INHIBIT SARS-COV-2   
JRNL        TITL 2 BY TARGETING ITS MAIN PROTEASE.                              
JRNL        REF    NAT COMMUN                    V.  11  4417 2020              
JRNL        REFN                   ESSN 2041-1723                               
JRNL        PMID   32887884                                                     
JRNL        DOI    10.1038/S41467-020-18233-X                                   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.16_3549                                     
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 : GEOSTD + MONOMER LIBRARY + CDL V1.2           
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 43.26                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.370                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 24895                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.242                           
REMARK   3   R VALUE            (WORKING SET) : 0.242                           
REMARK   3   FREE R VALUE                     : 0.251                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.830                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1203                            
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 43.2600 -  4.1500    0.99     2705   130  0.1798 0.1633        
REMARK   3     2  4.1500 -  3.3000    0.99     2647   132  0.2076 0.2166        
REMARK   3     3  3.3000 -  2.8800    1.00     2620   150  0.2534 0.2608        
REMARK   3     4  2.8800 -  2.6200    1.00     2640   144  0.2764 0.2789        
REMARK   3     5  2.6200 -  2.4300    1.00     2638   134  0.2888 0.3063        
REMARK   3     6  2.4300 -  2.2900    1.00     2646   141  0.2834 0.3041        
REMARK   3     7  2.2900 -  2.1700    1.00     2638   130  0.2847 0.3135        
REMARK   3     8  2.1700 -  2.0800    1.00     2658   118  0.2911 0.3370        
REMARK   3     9  2.0800 -  2.0000    0.96     2500   124  0.2979 0.3195        
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)     : 0.263            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.479           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 21.01                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 33.96                          
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      :  0.002           2413                                  
REMARK   3   ANGLE     :  0.502           3282                                  
REMARK   3   CHIRALITY :  0.040            371                                  
REMARK   3   PLANARITY :  0.004            426                                  
REMARK   3   DIHEDRAL  : 21.164            877                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 6                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: CHAIN 'A' AND (RESID 1 THROUGH 43 )                    
REMARK   3    ORIGIN FOR THE GROUP (A): -13.1364 -15.3108  11.1928              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2732 T22:   0.1223                                     
REMARK   3      T33:   0.0998 T12:   0.1002                                     
REMARK   3      T13:   0.0099 T23:   0.0316                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0011 L22:   0.0320                                     
REMARK   3      L33:   0.0067 L12:   0.0018                                     
REMARK   3      L13:  -0.0002 L23:  -0.0145                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0569 S12:   0.0341 S13:   0.0048                       
REMARK   3      S21:   0.0000 S22:  -0.0102 S23:  -0.0002                       
REMARK   3      S31:  -0.0930 S32:  -0.0470 S33:   0.0441                       
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: CHAIN 'A' AND (RESID 44 THROUGH 110 )                  
REMARK   3    ORIGIN FOR THE GROUP (A): -14.1682 -11.4845   0.7394              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2652 T22:   0.1553                                     
REMARK   3      T33:   0.1041 T12:   0.1365                                     
REMARK   3      T13:   0.0289 T23:   0.0600                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:  -0.0003 L22:   0.0380                                     
REMARK   3      L33:   0.0070 L12:  -0.0029                                     
REMARK   3      L13:   0.0016 L23:  -0.0199                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0439 S12:   0.0173 S13:   0.0093                       
REMARK   3      S21:  -0.0365 S22:  -0.0109 S23:   0.0133                       
REMARK   3      S31:  -0.1282 S32:  -0.0751 S33:   0.0344                       
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    SELECTION: CHAIN 'A' AND (RESID 111 THROUGH 180 )                 
REMARK   3    ORIGIN FOR THE GROUP (A): -10.4613 -23.7366  10.6298              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0442 T22:   0.0383                                     
REMARK   3      T33:   0.0882 T12:   0.0319                                     
REMARK   3      T13:  -0.0207 T23:   0.0273                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0308 L22:   0.0107                                     
REMARK   3      L33:   0.1839 L12:  -0.0165                                     
REMARK   3      L13:   0.0339 L23:  -0.0353                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0092 S12:  -0.0065 S13:   0.0077                       
REMARK   3      S21:   0.0001 S22:   0.0057 S23:   0.0129                       
REMARK   3      S31:  -0.0601 S32:  -0.0481 S33:   0.0254                       
REMARK   3   TLS GROUP : 4                                                      
REMARK   3    SELECTION: CHAIN 'A' AND (RESID 181 THROUGH 213 )                 
REMARK   3    ORIGIN FOR THE GROUP (A):  -4.6176 -35.1573   9.1029              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0930 T22:   0.1668                                     
REMARK   3      T33:   0.0884 T12:   0.1144                                     
REMARK   3      T13:   0.0022 T23:   0.0430                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0222 L22:   0.0776                                     
REMARK   3      L33:   0.0031 L12:   0.0398                                     
REMARK   3      L13:   0.0061 L23:   0.0143                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0529 S12:  -0.0674 S13:   0.0076                       
REMARK   3      S21:   0.0214 S22:   0.0020 S23:   0.0306                       
REMARK   3      S31:   0.0334 S32:   0.0284 S33:  -0.0498                       
REMARK   3   TLS GROUP : 5                                                      
REMARK   3    SELECTION: CHAIN 'A' AND (RESID 214 THROUGH 250 )                 
REMARK   3    ORIGIN FOR THE GROUP (A):   7.9280 -45.4678  17.4718              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3015 T22:   0.3246                                     
REMARK   3      T33:   0.1877 T12:   0.2190                                     
REMARK   3      T13:   0.0397 T23:   0.0764                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0040 L22:   0.0004                                     
REMARK   3      L33:   0.0048 L12:   0.0001                                     
REMARK   3      L13:   0.0037 L23:   0.0009                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0017 S12:   0.0059 S13:  -0.0080                       
REMARK   3      S21:  -0.0025 S22:   0.0033 S23:   0.0029                       
REMARK   3      S31:   0.0158 S32:   0.0175 S33:   0.0126                       
REMARK   3   TLS GROUP : 6                                                      
REMARK   3    SELECTION: CHAIN 'A' AND (RESID 251 THROUGH 301 )                 
REMARK   3    ORIGIN FOR THE GROUP (A):   3.0188 -41.2364  23.6283              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1526 T22:   0.2418                                     
REMARK   3      T33:   0.1415 T12:   0.1380                                     
REMARK   3      T13:   0.0248 T23:   0.0829                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0395 L22:   0.0087                                     
REMARK   3      L33:   0.0345 L12:  -0.0111                                     
REMARK   3      L13:   0.0335 L23:  -0.0159                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0287 S12:  -0.0144 S13:   0.0100                       
REMARK   3      S21:  -0.0060 S22:  -0.0219 S23:  -0.0284                       
REMARK   3      S31:   0.0410 S32:   0.0647 S33:  -0.0858                       
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 7C6U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 26-MAY-20.                  
REMARK 100 THE DEPOSITION ID IS D_1300017108.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-MAY-20                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRF                               
REMARK 200  BEAMLINE                       : BL19U1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 24996                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
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     (%) : 99.8                               
REMARK 200  DATA REDUNDANCY                : 7.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 34.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
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: PHASER                                                
REMARK 200 STARTING MODEL: 7BRR                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.62                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.77                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M MES MONOHYDRATE PH 6.0, 14% W/V    
REMARK 280  POLYETHYLENE GLYCOL 4000, VAPOR DIFFUSION, SITTING DROP,            
REMARK 280  TEMPERATURE 291K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
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+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   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       50.00150            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       39.80350            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       50.00150            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       39.80350            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2600 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 25000 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -13.0 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 -1.000000  0.000000  0.000000      -21.67587            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       47.10290            
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 615  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 619  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 650  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   302                                                      
REMARK 465     VAL A   303                                                      
REMARK 465     THR A   304                                                      
REMARK 465     PHE A   305                                                      
REMARK 465     GLN A   306                                                      
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     ARG A 222    CG   CD   NE   CZ   NH1  NH2                        
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    ASP A  33     -108.80     51.81                                   
REMARK 500    ASN A  84     -103.74     58.99                                   
REMARK 500    TYR A 154      -99.16   -138.14                                   
REMARK 500    HIS A 164      -38.59   -134.76                                   
REMARK 500    CYS A 300       31.66    -92.90                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 630                                                                      
REMARK 630 MOLECULE TYPE: NULL                                                  
REMARK 630 MOLECULE NAME: (1S,2S)-2-({N-[(BENZYLOXY)CARBONYL]-L-LEUCYL}AMINO)-  
REMARK 630 1-HYDROXY-3-[(3S)-2-OXOPYRROLIDIN-3-YL]PROPANE-1-SULFONIC ACID       
REMARK 630 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 630  SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                           
REMARK 630                                                                      
REMARK 630   M RES C SSSEQI                                                     
REMARK 630     K36 A   401                                                      
REMARK 630 SOURCE: NULL                                                         
REMARK 630 TAXONOMY: NULL                                                       
REMARK 630 SUBCOMP:    PHQ LEU 04F                                              
REMARK 630 DETAILS: NULL                                                        
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K36 A 401                 
DBREF  7C6U A    1   306  UNP    P0DTD1   R1AB_SARS2    3264   3569             
SEQRES   1 A  306  SER GLY PHE ARG LYS MET ALA PHE PRO SER GLY LYS VAL          
SEQRES   2 A  306  GLU GLY CYS MET VAL GLN VAL THR CYS GLY THR THR THR          
SEQRES   3 A  306  LEU ASN GLY LEU TRP LEU ASP ASP VAL VAL TYR CYS PRO          
SEQRES   4 A  306  ARG HIS VAL ILE CYS THR SER GLU ASP MET LEU ASN PRO          
SEQRES   5 A  306  ASN TYR GLU ASP LEU LEU ILE ARG LYS SER ASN HIS ASN          
SEQRES   6 A  306  PHE LEU VAL GLN ALA GLY ASN VAL GLN LEU ARG VAL ILE          
SEQRES   7 A  306  GLY HIS SER MET GLN ASN CYS VAL LEU LYS LEU LYS VAL          
SEQRES   8 A  306  ASP THR ALA ASN PRO LYS THR PRO LYS TYR LYS PHE VAL          
SEQRES   9 A  306  ARG ILE GLN PRO GLY GLN THR PHE SER VAL LEU ALA CYS          
SEQRES  10 A  306  TYR ASN GLY SER PRO SER GLY VAL TYR GLN CYS ALA MET          
SEQRES  11 A  306  ARG PRO ASN PHE THR ILE LYS GLY SER PHE LEU ASN GLY          
SEQRES  12 A  306  SER CYS GLY SER VAL GLY PHE ASN ILE ASP TYR ASP CYS          
SEQRES  13 A  306  VAL SER PHE CYS TYR MET HIS HIS MET GLU LEU PRO THR          
SEQRES  14 A  306  GLY VAL HIS ALA GLY THR ASP LEU GLU GLY ASN PHE TYR          
SEQRES  15 A  306  GLY PRO PHE VAL ASP ARG GLN THR ALA GLN ALA ALA GLY          
SEQRES  16 A  306  THR ASP THR THR ILE THR VAL ASN VAL LEU ALA TRP LEU          
SEQRES  17 A  306  TYR ALA ALA VAL ILE ASN GLY ASP ARG TRP PHE LEU ASN          
SEQRES  18 A  306  ARG PHE THR THR THR LEU ASN ASP PHE ASN LEU VAL ALA          
SEQRES  19 A  306  MET LYS TYR ASN TYR GLU PRO LEU THR GLN ASP HIS VAL          
SEQRES  20 A  306  ASP ILE LEU GLY PRO LEU SER ALA GLN THR GLY ILE ALA          
SEQRES  21 A  306  VAL LEU ASP MET CYS ALA SER LEU LYS GLU LEU LEU GLN          
SEQRES  22 A  306  ASN GLY MET ASN GLY ARG THR ILE LEU GLY SER ALA LEU          
SEQRES  23 A  306  LEU GLU ASP GLU PHE THR PRO PHE ASP VAL VAL ARG GLN          
SEQRES  24 A  306  CYS SER GLY VAL THR PHE GLN                                  
HET    K36  A 401      29                                                       
HETNAM     K36 (1S,2S)-2-({N-[(BENZYLOXY)CARBONYL]-L-LEUCYL}AMINO)-1-           
HETNAM   2 K36  HYDROXY-3-[(3S)-2-OXOPYRROLIDIN-3-YL]PROPANE-1-                 
HETNAM   3 K36  SULFONIC ACID                                                   
HETSYN     K36 GC376                                                            
FORMUL   2  K36    C21 H31 N3 O8 S                                              
FORMUL   3  HOH   *160(H2 O)                                                    
HELIX    1 AA1 SER A   10  GLY A   15  1                                   6    
HELIX    2 AA2 HIS A   41  CYS A   44  5                                   4    
HELIX    3 AA3 GLU A   47  ASN A   51  5                                   5    
HELIX    4 AA4 ASN A   53  ARG A   60  1                                   8    
HELIX    5 AA5 SER A   62  HIS A   64  5                                   3    
HELIX    6 AA6 ILE A  200  ASN A  214  1                                  15    
HELIX    7 AA7 THR A  226  TYR A  237  1                                  12    
HELIX    8 AA8 THR A  243  LEU A  250  1                                   8    
HELIX    9 AA9 LEU A  250  GLY A  258  1                                   9    
HELIX   10 AB1 ALA A  260  GLY A  275  1                                  16    
HELIX   11 AB2 THR A  292  CYS A  300  1                                   9    
SHEET    1 AA1 7 VAL A  73  LEU A  75  0                                        
SHEET    2 AA1 7 PHE A  66  ALA A  70 -1  N  ALA A  70   O  VAL A  73           
SHEET    3 AA1 7 MET A  17  CYS A  22 -1  N  THR A  21   O  LEU A  67           
SHEET    4 AA1 7 THR A  25  LEU A  32 -1  O  LEU A  27   N  VAL A  20           
SHEET    5 AA1 7 VAL A  35  PRO A  39 -1  O  TYR A  37   N  LEU A  30           
SHEET    6 AA1 7 VAL A  86  VAL A  91 -1  O  LEU A  87   N  CYS A  38           
SHEET    7 AA1 7 VAL A  77  GLN A  83 -1  N  SER A  81   O  LYS A  88           
SHEET    1 AA2 5 TYR A 101  PHE A 103  0                                        
SHEET    2 AA2 5 VAL A 157  GLU A 166  1  O  VAL A 157   N  LYS A 102           
SHEET    3 AA2 5 VAL A 148  ILE A 152 -1  N  ASN A 151   O  SER A 158           
SHEET    4 AA2 5 THR A 111  TYR A 118 -1  N  SER A 113   O  PHE A 150           
SHEET    5 AA2 5 SER A 121  ALA A 129 -1  O  SER A 123   N  ALA A 116           
SHEET    1 AA3 3 TYR A 101  PHE A 103  0                                        
SHEET    2 AA3 3 VAL A 157  GLU A 166  1  O  VAL A 157   N  LYS A 102           
SHEET    3 AA3 3 HIS A 172  THR A 175 -1  O  ALA A 173   N  MET A 165           
LINK         SG  CYS A 145                 C21 K36 A 401     1555   1555  1.77  
SITE     1 AC1 12 PHE A 140  LEU A 141  GLY A 143  SER A 144                    
SITE     2 AC1 12 CYS A 145  HIS A 163  HIS A 164  MET A 165                    
SITE     3 AC1 12 GLU A 166  HIS A 172  GLN A 189  HOH A 582                    
CRYST1  100.003   79.607   51.851  90.00 114.71  90.00 C 1 2 1       4          
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      0.010000  0.000000  0.004602        0.00000                         
SCALE2      0.000000  0.012562  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021230        0.00000