HEADER    VIRAL PROTEIN                           04-APR-21   7EK6              
TITLE     STRUCTURE OF VIRAL PEPTIDES IPB19/N52                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: SPIKE PROTEIN S2;                                          
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: SPIKE PROTEIN S2;                                          
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 ORGANISM_SCIENTIFIC: SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS   
SOURCE   4 2;                                                                   
SOURCE   5 ORGANISM_COMMON: 2019-NCOV, SARS-COV-2;                              
SOURCE   6 ORGANISM_TAXID: 2697049;                                             
SOURCE   7 MOL_ID: 2;                                                           
SOURCE   8 SYNTHETIC: YES;                                                      
SOURCE   9 ORGANISM_SCIENTIFIC: SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS   
SOURCE  10 2;                                                                   
SOURCE  11 ORGANISM_COMMON: 2019-NCOV, SARS-COV-2;                              
SOURCE  12 ORGANISM_TAXID: 2697049                                              
KEYWDS    SARS-COV-2, SPIKE PROTEIN, MEMBRANE FUSION, FUSION INHIBITOR,         
KEYWDS   2 LIPOPEPTIDE, VIRAL PROTEIN                                           
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.YU,B.QIN,S.CUI,Y.HE                                                 
REVDAT   3   29-NOV-23 7EK6    1       REMARK                                   
REVDAT   2   07-JUL-21 7EK6    1       JRNL                                     
REVDAT   1   09-JUN-21 7EK6    0                                                
JRNL        AUTH   D.YU,Y.ZHU,T.JIAO,T.WU,X.XIAO,B.QIN,H.CHONG,X.LEI,L.REN,     
JRNL        AUTH 2 S.CUI,J.WANG,Y.HE                                            
JRNL        TITL   STRUCTURE-BASED DESIGN AND CHARACTERIZATION OF NOVEL         
JRNL        TITL 2 FUSION-INHIBITORY LIPOPEPTIDES AGAINST SARS-COV-2 AND        
JRNL        TITL 3 EMERGING VARIANTS.                                           
JRNL        REF    EMERG MICROBES INFECT         V.  10  1227 2021              
JRNL        REFN                   ESSN 2222-1751                               
JRNL        PMID   34057039                                                     
JRNL        DOI    10.1080/22221751.2021.1937329                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.24 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.13_2998                                     
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) : 1.24                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.93                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.340                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 25347                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.174                           
REMARK   3   R VALUE            (WORKING SET) : 0.173                           
REMARK   3   FREE R VALUE                     : 0.185                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.030                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1276                            
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  3.7100 -  2.5852    1.00     2947   173  0.1798 0.1958        
REMARK   3     2  2.5852 -  2.0521    1.00     2828   131  0.1432 0.1432        
REMARK   3     3  2.0521 -  1.7927    1.00     2738   165  0.1598 0.1680        
REMARK   3     4  1.7927 -  1.6288    1.00     2757   142  0.1586 0.1933        
REMARK   3     5  1.6288 -  1.5121    1.00     2716   136  0.1567 0.1785        
REMARK   3     6  1.5121 -  1.4229    1.00     2697   144  0.1871 0.1974        
REMARK   3     7  1.4229 -  1.3516    1.00     2709   136  0.2102 0.2248        
REMARK   3     8  1.3516 -  1.2928    0.93     2549   132  0.2395 0.2982        
REMARK   3     9  1.2928 -  1.2430    0.80     2130   117  0.3249 0.3288        
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)     : 0.150            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.430           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 15.58                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 28.38                          
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 7EK6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 15-APR-21.                  
REMARK 100 THE DEPOSITION ID IS D_1300021614.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-NOV-20                          
REMARK 200  TEMPERATURE           (KELVIN) : 296                                
REMARK 200  PH                             : 5.6                                
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) : 0.9785                             
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 : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 25377                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.240                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 32.932                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.1                               
REMARK 200  DATA REDUNDANCY                : 31.47                              
REMARK 200  R MERGE                    (I) : 0.05800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 35.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.24                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.71                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 84.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 14.10                              
REMARK 200  R MERGE FOR SHELL          (I) : 1.22000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.100                              
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: 6LXT                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.50                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.26                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.26M SODIUM PHOSPHATE MONOBASIC         
REMARK 280  MONOHYDRATE, 0.14M POTASSIUM PHOSPHATE DIBASIC, PH 5.6, VAPOR       
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 296K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2                            
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-Z                                              
REMARK 290       7555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       8555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       9555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290      10555   Y+2/3,X+1/3,-Z+1/3                                      
REMARK 290      11555   X-Y+2/3,-Y+1/3,-Z+1/3                                   
REMARK 290      12555   -X+2/3,-X+Y+1/3,-Z+1/3                                  
REMARK 290      13555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290      14555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290      15555   -X+Y+1/3,-X+2/3,Z+2/3                                   
REMARK 290      16555   Y+1/3,X+2/3,-Z+2/3                                      
REMARK 290      17555   X-Y+1/3,-Y+2/3,-Z+2/3                                   
REMARK 290      18555   -X+1/3,-X+Y+2/3,-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        0.00000            
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        0.00000            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        0.00000            
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        0.00000            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000       19.11650            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       11.03692            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000      105.77633            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000       19.11650            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       11.03692            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000      105.77633            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000       19.11650            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       11.03692            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000      105.77633            
REMARK 290   SMTRY1  10 -0.500000  0.866025  0.000000       19.11650            
REMARK 290   SMTRY2  10  0.866025  0.500000  0.000000       11.03692            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000      105.77633            
REMARK 290   SMTRY1  11  1.000000  0.000000  0.000000       19.11650            
REMARK 290   SMTRY2  11  0.000000 -1.000000  0.000000       11.03692            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000      105.77633            
REMARK 290   SMTRY1  12 -0.500000 -0.866025  0.000000       19.11650            
REMARK 290   SMTRY2  12 -0.866025  0.500000  0.000000       11.03692            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000      105.77633            
REMARK 290   SMTRY1  13  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000       22.07383            
REMARK 290   SMTRY3  13  0.000000  0.000000  1.000000      211.55267            
REMARK 290   SMTRY1  14 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  14  0.866025 -0.500000  0.000000       22.07383            
REMARK 290   SMTRY3  14  0.000000  0.000000  1.000000      211.55267            
REMARK 290   SMTRY1  15 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  15 -0.866025 -0.500000  0.000000       22.07383            
REMARK 290   SMTRY3  15  0.000000  0.000000  1.000000      211.55267            
REMARK 290   SMTRY1  16 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  16  0.866025  0.500000  0.000000       22.07383            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000      211.55267            
REMARK 290   SMTRY1  17  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  17  0.000000 -1.000000  0.000000       22.07383            
REMARK 290   SMTRY3  17  0.000000  0.000000 -1.000000      211.55267            
REMARK 290   SMTRY1  18 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  18 -0.866025  0.500000  0.000000       22.07383            
REMARK 290   SMTRY3  18  0.000000  0.000000 -1.000000      211.55267            
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: HEXAMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 12100 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 11030 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -88.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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       19.11650            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000      -33.11075            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000       38.23300            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   3  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 A1339  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A1355  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     PHE A   906                                                      
REMARK 465     ASN A   907                                                      
REMARK 465     GLU B  1202                                                      
REMARK 465     LEU B  1203                                                      
REMARK 465     GLY B  1204                                                      
REMARK 465     LYS B  1205                                                      
REMARK 465     TYR B  1206                                                      
REMARK 465     GLU B  1207                                                      
REMARK 465     GLN B  1208                                                      
REMARK 465     TYR B  1209                                                      
REMARK 465     ILE B  1210                                                      
REMARK 465     LYS B  1211                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   HZ2  LYS A   921     O    HOH A  1302              1.52            
REMARK 500  HD21  ASN B  1192     O    HOH B  1302              1.58            
REMARK 500   O    HOH B  1317     O    HOH B  1329              1.81            
REMARK 500   O    HOH B  1338     O    HOH B  1342              1.86            
REMARK 500   O    HOH A  1327     O    HOH A  1335              1.88            
REMARK 500   OE1  GLN A   957     O    HOH A  1301              1.92            
REMARK 500   NZ   LYS A   921     O    HOH A  1302              1.99            
REMARK 500   OD1  ASP A   936     O    HOH A  1303              1.99            
REMARK 500   OD1  ASP A   936     O    HOH A  1304              2.04            
REMARK 500   OD2  ASP A   936     O    HOH A  1304              2.07            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  7EK6 A  906   957  UNP    P0DTC2   SPIKE_SARS2    906    957             
DBREF  7EK6 B 1175  1211  UNP    P0DTC2   SPIKE_SARS2   1175   1211             
SEQRES   1 A   52  PHE ASN GLY ILE GLY VAL THR GLN ASN VAL LEU TYR GLU          
SEQRES   2 A   52  ASN GLN LYS LEU ILE ALA ASN GLN PHE ASN SER ALA ILE          
SEQRES   3 A   52  GLY LYS ILE GLN ASP SER LEU SER SER THR ALA SER ALA          
SEQRES   4 A   52  LEU GLY LYS LEU GLN ASP VAL VAL ASN GLN ASN ALA GLN          
SEQRES   1 B   37  SER VAL VAL ASN ILE GLN LYS GLU ILE ASP ARG LEU ASN          
SEQRES   2 B   37  GLU VAL ALA LYS ASN LEU ASN GLU SER LEU ILE ASP LEU          
SEQRES   3 B   37  GLN GLU LEU GLY LYS TYR GLU GLN TYR ILE LYS                  
FORMUL   3  HOH   *100(H2 O)                                                    
HELIX    1 AA1 GLY A  908  GLN A  957  1                                  50    
HELIX    2 AA2 ILE B 1179  LEU B 1193  1                                  15    
HELIX    3 AA3 ASN B 1194  LEU B 1197  5                                   4    
CRYST1   38.233   38.233  317.329  90.00  90.00 120.00 H 3 2        18          
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      0.026155  0.015101  0.000000        0.00000                         
SCALE2      0.000000  0.030202  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.003151        0.00000