PDB Short entry for 7MHN
HEADER    HYDROLASE                               15-APR-21   7MHN              
TITLE     ENSEMBLE REFINEMENT STRUCTURE OF APO/UNLIGANDED SARS-COV-2 MAIN       
TITLE    2 PROTEASE (MPRO) AT 277 K                                             
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, SARS-COV-2;                              
SOURCE   5 ORGANISM_TAXID: 2697049;                                             
SOURCE   6 GENE: REP, 1A-1B;                                                    
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET29B                                    
KEYWDS    SARS-COV-2, CORONAVIRUS, MAIN PROTEASE, 3CLPRO, MPRO, HYDROLASE, APO, 
KEYWDS   2 UNLIGANDED, ENSEMBLE REFINEMENT, TEMPERATURE SERIES, TEMPERATURE,    
KEYWDS   3 MULTITEMPERATURE                                                     
EXPDTA    X-RAY DIFFRACTION                                                     
NUMMDL    18                                                                    
AUTHOR    A.EBRAHIM,B.T.RILEY,D.KUMARAN,B.ANDI,M.R.FUCHS,S.MCSWEENEY,D.A.KEEDY  
REVDAT   2   26-MAY-21 7MHN    1       JRNL                                     
REVDAT   1   12-MAY-21 7MHN    0                                                
JRNL        AUTH   A.EBRAHIM,B.T.RILEY,D.KUMARAN,B.ANDI,M.R.FUCHS,S.MCSWEENEY,  
JRNL        AUTH 2 D.A.KEEDY                                                    
JRNL        TITL   THE TEMPERATURE-DEPENDENT CONFORMATIONAL ENSEMBLE OF         
JRNL        TITL 2 SARS-COV-2 MAIN PROTEASE (M PRO ).                           
JRNL        REF    BIORXIV                                    2021              
JRNL        REFN                                                                
JRNL        PMID   33972941                                                     
JRNL        DOI    10.1101/2021.05.03.437411                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.19 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.ENSEMBLE_REFINEMENT: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 : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.19                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.96                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 14037                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.166                           
REMARK   3   R VALUE            (WORKING SET) : 0.163                           
REMARK   3   FREE R VALUE                     : 0.217                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 738                             
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 48.9600 -  3.7500    1.00     2736   138  0.1255 0.1481        
REMARK   3     2  3.7500 -  2.9700    1.00     2691   153  0.1568 0.2259        
REMARK   3     3  2.9700 -  2.6000    0.99     2637   157  0.1980 0.2646        
REMARK   3     4  2.6000 -  2.3600    0.99     2612   143  0.2144 0.3229        
REMARK   3     5  2.3600 -  2.1900    0.99     2623   147  0.2347 0.2921        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : NULL                                          
REMARK   3   SOLVENT RADIUS     : NULL                                          
REMARK   3   SHRINKAGE RADIUS   : NULL                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : NULL             
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : NULL             
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  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  : 1                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: CHAIN A                                                
REMARK   3    ORIGIN FOR THE GROUP (A):  12.2368   0.4759   4.5545              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3766 T22:   0.4317                                     
REMARK   3      T33:   0.4310 T12:   0.0084                                     
REMARK   3      T13:   0.0143 T23:  -0.0393                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.7814 L22:   1.1334                                     
REMARK   3      L33:   1.4689 L12:  -0.0591                                     
REMARK   3      L13:   0.1500 L23:  -0.5754                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0018 S12:   0.0039 S13:  -0.0338                       
REMARK   3      S21:  -0.0290 S22:   0.0130 S23:   0.0246                       
REMARK   3      S31:   0.0466 S32:  -0.0342 S33:  -0.0113                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: THE INDIVIDUAL MODELS WITHIN THIS         
REMARK   3  ENSEMBLE SHOULD NOT BE INTERPRETED INDIVIDUALLY. THE ENSEMBLE AS    
REMARK   3  A WHOLE IS FITTED TO THE DATA. THEREFORE THE STRUCTURES             
REMARK   3  REPRESENT A DISTRIBUTION THAT REFLECTS FLUCTUATIONS AROUND IDEAL    
REMARK   3  GEOMETRIC VALUES, I.E. EACH INDIVIDUAL RESTRAINT IN EACH            
REMARK   3  INDIVIDUAL STRUCTURE DOES NOT NECESSARILY HAVE TO FIT THE IDEAL     
REMARK   3  GEOMETRIC VALUE AND A DEGREE OF VARIATION IS EXPECTED               
REMARK   4                                                                      
REMARK   4 7MHN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-APR-21.                  
REMARK 100 THE DEPOSITION ID IS D_1000255381.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 03-JUN-20                          
REMARK 200  TEMPERATURE           (KELVIN) : 277                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS-II                            
REMARK 200  BEAMLINE                       : 17-ID-2                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9793                             
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS EIGER X 16M                
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XIA2 0.5.902-GFFA11588-DIALS       
REMARK 200                                   -1.14                              
REMARK 200  DATA SCALING SOFTWARE          : DIALS 1.14.13-G10ECFBB15-RELEASE   
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14120                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.191                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 48.962                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 6.928                              
REMARK 200  R MERGE                    (I) : 0.29160                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 4.4679                             
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) : 2.23                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.87                               
REMARK 200  R MERGE FOR SHELL          (I) : 1.80540                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.105                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER 1.18.2_3874                                    
REMARK 200 STARTING MODEL: 6YB7                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 39.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.04                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 22% PEG 4000, 100 MM HEPES PH 7.0, 3-    
REMARK 280  -5% DMSO, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K           
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       57.51150            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       27.17900            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       57.51150            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       27.17900            
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: 4180 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 25440 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -7.0 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        0.00000            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 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 519  LIES ON A SPECIAL POSITION.                          
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  2 CYS A  44   CB    CYS A  44   SG     -0.107                       
REMARK 500  4 CYS A  16   CB    CYS A  16   SG     -0.113                       
REMARK 500  4 CYS A 156   CB    CYS A 156   SG     -0.106                       
REMARK 500  6 CYS A 300   CB    CYS A 300   SG      0.123                       
REMARK 500  9 CYS A  16   CB    CYS A  16   SG     -0.109                       
REMARK 500  9 CYS A  44   CB    CYS A  44   SG     -0.099                       
REMARK 500 11 CYS A  44   CB    CYS A  44   SG     -0.109                       
REMARK 500 11 CYS A 265   CB    CYS A 265   SG     -0.104                       
REMARK 500 11 MET A 276   CB    MET A 276   CG      0.202                       
REMARK 500 11 CYS A 300   CB    CYS A 300   SG      0.153                       
REMARK 500 13 CYS A  16   CB    CYS A  16   SG     -0.103                       
REMARK 500 13 CYS A  44   CB    CYS A  44   SG     -0.141                       
REMARK 500 14 PHE A 294   CB    PHE A 294   CG      0.125                       
REMARK 500 14 CYS A 300   CB    CYS A 300   SG     -0.104                       
REMARK 500 15 GLU A  55   CB    GLU A  55   CG      0.119                       
REMARK 500 17 CYS A 117   CB    CYS A 117   SG     -0.111                       
REMARK 500 17 CYS A 156   CB    CYS A 156   SG      0.127                       
REMARK 500 18 CYS A 156   CB    CYS A 156   SG      0.139                       
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  1 ASP A 153   CB  -  CG  -  OD2 ANGL. DEV. =   5.7 DEGREES          
REMARK 500  1 ARG A 279   NE  -  CZ  -  NH2 ANGL. DEV. =   3.2 DEGREES          
REMARK 500  3 LEU A  67   CA  -  CB  -  CG  ANGL. DEV. =  14.1 DEGREES          
REMARK 500  3 ASP A 153   CB  -  CG  -  OD1 ANGL. DEV. =   5.9 DEGREES          
REMARK 500  3 MET A 165   CB  -  CG  -  SD  ANGL. DEV. = -21.9 DEGREES          
REMARK 500  3 ASP A 197   CB  -  CG  -  OD1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500  6 MET A 165   CG  -  SD  -  CE  ANGL. DEV. =  12.6 DEGREES          
REMARK 500  9 ARG A 105   NE  -  CZ  -  NH1 ANGL. DEV. =   3.8 DEGREES          
REMARK 500  9 ARG A 105   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.6 DEGREES          
REMARK 500 10 ARG A 105   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500 10 LEU A 141   CA  -  CB  -  CG  ANGL. DEV. = -14.4 DEGREES          
REMARK 500 11 ASP A 187   CB  -  CG  -  OD1 ANGL. DEV. =   5.5 DEGREES          
REMARK 500 11 MET A 276   CG  -  SD  -  CE  ANGL. DEV. =  10.4 DEGREES          
REMARK 500 12 GLY A 302   N   -  CA  -  C   ANGL. DEV. =  15.6 DEGREES          
REMARK 500 13 ASP A 187   CB  -  CG  -  OD1 ANGL. DEV. =   5.5 DEGREES          
REMARK 500 13 ARG A 279   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.5 DEGREES          
REMARK 500 14 ASP A 197   CB  -  CG  -  OD1 ANGL. DEV. =   5.7 DEGREES          
REMARK 500 14 ARG A 298   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500 15 ARG A 298   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500 16 TYR A 154   CA  -  CB  -  CG  ANGL. DEV. =  11.4 DEGREES          
REMARK 500 16 ARG A 298   NE  -  CZ  -  NH1 ANGL. DEV. =   3.8 DEGREES          
REMARK 500 18 CYS A 156   CA  -  CB  -  SG  ANGL. DEV. =   7.0 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500  1 ASP A  33     -119.31     49.25                                   
REMARK 500  1 THR A  45     -155.51    -77.25                                   
REMARK 500  1 SER A  46      -60.20    -93.68                                   
REMARK 500  1 VAL A  73      102.56     56.81                                   
REMARK 500  1 ASN A  84     -119.84     58.56                                   
REMARK 500  1 THR A  98      107.33    -38.72                                   
REMARK 500  1 ARG A 131      160.46    -48.91                                   
REMARK 500  1 TYR A 154      -76.11    167.19                                   
REMARK 500  1 THR A 196      136.99    -39.76                                   
REMARK 500  1 ARG A 217       21.65   -144.07                                   
REMARK 500  1 PHE A 223      154.29    -49.73                                   
REMARK 500  1 CYS A 300       78.43   -119.95                                   
REMARK 500  1 SER A 301       35.43   -178.36                                   
REMARK 500  1 PHE A 305     -125.48   -134.49                                   
REMARK 500  2 THR A  24      -34.37   -131.61                                   
REMARK 500  2 ASP A  33     -119.42     60.19                                   
REMARK 500  2 CYS A  44      175.53    -46.30                                   
REMARK 500  2 SER A  46      -88.78    -16.28                                   
REMARK 500  2 ASN A  51       91.57   -170.52                                   
REMARK 500  2 ASN A  63        8.47    -46.69                                   
REMARK 500  2 ALA A  70       63.57   -110.59                                   
REMARK 500  2 VAL A  73      110.98    124.99                                   
REMARK 500  2 ASN A  84     -114.79     61.27                                   
REMARK 500  2 ASP A 153     -132.78   -119.46                                   
REMARK 500  2 TYR A 154      -83.95    -57.07                                   
REMARK 500  2 PHE A 185      135.29     11.19                                   
REMARK 500  2 THR A 225     -167.87   -165.40                                   
REMARK 500  2 ASN A 277       31.41    -12.21                                   
REMARK 500  2 SER A 301     -106.55   -118.30                                   
REMARK 500  2 THR A 304      -80.78   -134.29                                   
REMARK 500  2 PHE A 305     -150.55    106.15                                   
REMARK 500  3 ASP A  33     -117.96     58.01                                   
REMARK 500  3 THR A  45     -106.28    -86.87                                   
REMARK 500  3 SER A  46      -73.66   -109.98                                   
REMARK 500  3 ASN A  51       77.30   -167.99                                   
REMARK 500  3 ALA A  70       88.39   -158.44                                   
REMARK 500  3 VAL A  73      143.98    113.53                                   
REMARK 500  3 ASN A  84     -115.28     55.49                                   
REMARK 500  3 PRO A  96      -81.02    -58.57                                   
REMARK 500  3 LYS A  97       58.41    -61.04                                   
REMARK 500  3 PRO A 108      151.27    -48.67                                   
REMARK 500  3 TYR A 154     -112.74   -161.51                                   
REMARK 500  3 ASP A 155       22.05    -76.89                                   
REMARK 500  3 MET A 165      139.99    176.83                                   
REMARK 500  3 THR A 224     -164.86   -116.70                                   
REMARK 500  3 GLN A 244      -40.34      1.90                                   
REMARK 500  3 ASN A 277       94.15    -21.55                                   
REMARK 500  3 SER A 301       71.54   -159.72                                   
REMARK 500  3 VAL A 303     -166.32    118.27                                   
REMARK 500  3 THR A 304        6.81    161.79                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     352 RAMACHANDRAN OUTLIERS.                        
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 MET A  276     ASN A  277          1      -114.60                    
REMARK 500 ASP A  155     CYS A  156          2      -145.31                    
REMARK 500 VAL A  303     THR A  304          2       146.77                    
REMARK 500 TYR A  154     ASP A  155          3       149.18                    
REMARK 500 GLY A  275     MET A  276          3       146.81                    
REMARK 500 SER A  301     GLY A  302          3       143.61                    
REMARK 500 ASP A  155     CYS A  156          4      -142.56                    
REMARK 500 GLY A  302     VAL A  303          4       127.09                    
REMARK 500 VAL A  303     THR A  304          4      -146.51                    
REMARK 500 VAL A   73     GLN A   74          5      -139.21                    
REMARK 500 ASP A  153     TYR A  154          5       147.16                    
REMARK 500 PHE A  223     THR A  224          5       146.67                    
REMARK 500 PHE A  305     GLN A  306          5      -148.92                    
REMARK 500 GLN A  189     THR A  190          6       149.11                    
REMARK 500 PHE A  305     GLN A  306          6       147.80                    
REMARK 500 ASN A   72     VAL A   73          7       149.71                    
REMARK 500 GLY A  195     THR A  196          7      -144.11                    
REMARK 500 ARG A  217     TRP A  218          7      -138.10                    
REMARK 500 LEU A  220     ASN A  221          7       146.66                    
REMARK 500 ASN A  274     GLY A  275          7       149.18                    
REMARK 500 MET A  276     ASN A  277          7       146.09                    
REMARK 500 ASN A  277     GLY A  278          7      -140.87                    
REMARK 500 GLN A  299     CYS A  300          7      -149.72                    
REMARK 500 GLY A  302     VAL A  303          7       130.40                    
REMARK 500 ASP A  155     CYS A  156          8      -146.28                    
REMARK 500 LEU A  220     ASN A  221          8       128.00                    
REMARK 500 ASN A  277     GLY A  278          8      -144.51                    
REMARK 500 VAL A   73     GLN A   74          9      -145.87                    
REMARK 500 ASN A  221     ARG A  222          9       129.83                    
REMARK 500 ASN A  228     ASP A  229          9      -126.80                    
REMARK 500 THR A  304     PHE A  305          9       135.29                    
REMARK 500 THR A   24     THR A   25         10      -143.25                    
REMARK 500 SER A   46     GLU A   47         10       143.03                    
REMARK 500 GLY A  275     MET A  276         10       141.62                    
REMARK 500 GLY A  278     ARG A  279         10       134.08                    
REMARK 500 THR A  304     PHE A  305         10       133.18                    
REMARK 500 GLU A   47     ASP A   48         11      -147.61                    
REMARK 500 ASP A  155     CYS A  156         11      -145.30                    
REMARK 500 GLY A  195     THR A  196         11      -147.97                    
REMARK 500 ASN A  274     GLY A  275         11       145.42                    
REMARK 500 MET A  276     ASN A  277         11      -139.05                    
REMARK 500 SER A  301     GLY A  302         11      -138.46                    
REMARK 500 GLY A  195     THR A  196         12      -149.62                    
REMARK 500 PHE A  223     THR A  224         12       148.90                    
REMARK 500 GLN A  273     ASN A  274         12      -146.02                    
REMARK 500 GLY A  275     MET A  276         12       136.81                    
REMARK 500 ASN A  277     GLY A  278         12      -145.45                    
REMARK 500 ARG A  279     THR A  280         12      -143.62                    
REMARK 500 SER A  301     GLY A  302         12      -143.44                    
REMARK 500 ASP A  153     TYR A  154         13       138.32                    
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      77 NON CIS, NON-TRANS OMEGA OUTLIERS.            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 520        DISTANCE =  6.45 ANGSTROMS                       
REMARK 525    HOH A 504        DISTANCE =  6.21 ANGSTROMS                       
REMARK 525    HOH A 523        DISTANCE =  6.08 ANGSTROMS                       
REMARK 525    HOH A 527        DISTANCE =  6.36 ANGSTROMS                       
REMARK 525    HOH A 523        DISTANCE =  8.93 ANGSTROMS                       
REMARK 525    HOH A 533        DISTANCE =  5.87 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue DMS A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue DMS A 402                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 7MHL   RELATED DB: PDB                                   
REMARK 900 ENSEMBLE REFINEMENT AT 100 K                                         
REMARK 900 RELATED ID: 7MHM   RELATED DB: PDB                                   
REMARK 900 ENSEMBLE REFINEMENT AT 240 K                                         
REMARK 900 RELATED ID: 7MHO   RELATED DB: PDB                                   
REMARK 900 ENSEMBLE REFINEMENT AT 298 K                                         
REMARK 900 RELATED ID: 7MHP   RELATED DB: PDB                                   
REMARK 900 ENSEMBLE REFINEMENT AT 298 K, 99% RH                                 
REMARK 900 RELATED ID: 7MHQ   RELATED DB: PDB                                   
REMARK 900 ENSEMBLE REFINEMENT AT 310 K                                         
REMARK 900 RELATED ID: 7MHF   RELATED DB: PDB                                   
REMARK 900 REFINEMENT AT 100 K                                                  
REMARK 900 RELATED ID: 7MHG   RELATED DB: PDB                                   
REMARK 900 REFINEMENT AT 240 K                                                  
REMARK 900 RELATED ID: 7MHH   RELATED DB: PDB                                   
REMARK 900 REFINEMENT AT 277 K                                                  
REMARK 900 RELATED ID: 7MHI   RELATED DB: PDB                                   
REMARK 900 REFINEMENT AT 298 K                                                  
REMARK 900 RELATED ID: 7MHJ   RELATED DB: PDB                                   
REMARK 900 REFINEMENT AT 298 K, 99% RH                                          
REMARK 900 RELATED ID: 7MHK   RELATED DB: PDB                                   
REMARK 900 REFINEMENT AT 310 K                                                  
DBREF  7MHN 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    DMS  A 401      10                                                       
HET    DMS  A 402      10                                                       
HETNAM     DMS DIMETHYL SULFOXIDE                                               
FORMUL   2  DMS    2(C2 H6 O S)                                                 
FORMUL   4  HOH   *39(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 SER A   46  ASN A   51  5                                   6    
HELIX    4 AA4 ASN A   53  ILE A   59  1                                   7    
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  GLY A  258  1                                  16    
HELIX    9 AA9 ALA A  260  GLY A  275  1                                  16    
HELIX   10 AB1 THR A  292  CYS A  300  1                                   9    
SHEET    1 AA1 6 PHE A  66  GLN A  69  0                                        
SHEET    2 AA1 6 MET A  17  CYS A  22 -1  N  THR A  21   O  LEU A  67           
SHEET    3 AA1 6 THR A  25  LEU A  32 -1  O  LEU A  27   N  VAL A  20           
SHEET    4 AA1 6 VAL A  35  PRO A  39 -1  O  TYR A  37   N  LEU A  30           
SHEET    5 AA1 6 VAL A  86  VAL A  91 -1  O  LEU A  89   N  VAL A  36           
SHEET    6 AA1 6 VAL A  77  GLN A  83 -1  N  ILE A  78   O  LYS A  90           
SHEET    1 AA2 5 TYR A 101  PHE A 103  0                                        
SHEET    2 AA2 5 VAL A 157  GLU A 166  1  O  PHE A 159   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  CYS A 128   N  PHE A 112           
SHEET    1 AA3 3 TYR A 101  PHE A 103  0                                        
SHEET    2 AA3 3 VAL A 157  GLU A 166  1  O  PHE A 159   N  LYS A 102           
SHEET    3 AA3 3 HIS A 172  THR A 175 -1  O  ALA A 173   N  MET A 165           
SITE     1 AC1  4 MET A   6  GLN A 127  ASP A 295  ARG A 298                    
SITE     1 AC2  2 SER A  46  PHE A 294                                          
CRYST1  115.023   54.358   44.970  90.00 101.50  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      0.008694  0.000000  0.001769        0.00000                         
SCALE2      0.000000  0.018397  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.022693        0.00000