HEADER    HYDROLASE                               26-JUL-03   1Q2W              
TITLE     X-RAY CRYSTAL STRUCTURE OF THE SARS CORONAVIRUS MAIN PROTEASE         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 3C-LIKE PROTEASE;                                          
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: REPLICASE POLYPROTEIN 1A RESIDUES 3241-3544;               
COMPND   5 SYNONYM: 3C-LIKE PROTEINASE, 3CL-PRO, 3CLP, NSP5;                    
COMPND   6 EC: 3.4.22.-;                                                        
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SEVERE ACUTE RESPIRATORY SYNDROME-RELATED       
SOURCE   3 CORONAVIRUS;                                                         
SOURCE   4 ORGANISM_COMMON: SARS-COV;                                           
SOURCE   5 ORGANISM_TAXID: 694009;                                              
SOURCE   6 GENE: 1A;                                                            
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   9 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)-CODON+RIL;                       
SOURCE  10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  11 EXPRESSION_SYSTEM_PLASMID: MODIFIED PET26B                           
KEYWDS    SARS-COV MAIN PROTEASE, THREE DOMAIN PROTEIN (TWO ANTIPARALLEL BETA   
KEYWDS   2 BARRELS, ONE ALPHA HELICAL), HYDROLASE                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.B.BONANNO,R.FOWLER,S.GUPTA,J.HENDLE,D.LORIMER,R.ROMERO,J.M.SAUDER,  
AUTHOR   2 C.L.WEI,E.T.LIU,S.K.BURLEY,T.HARRIS                                  
REVDAT   9   16-AUG-23 1Q2W    1       REMARK                                   
REVDAT   8   03-FEB-21 1Q2W    1       AUTHOR JRNL   REMARK                     
REVDAT   7   26-FEB-20 1Q2W    1       JRNL                                     
REVDAT   6   12-FEB-20 1Q2W    1       COMPND SOURCE JRNL   DBREF               
REVDAT   6 2                   1       SEQADV                                   
REVDAT   5   14-NOV-18 1Q2W    1       AUTHOR JRNL                              
REVDAT   4   11-OCT-17 1Q2W    1       REMARK                                   
REVDAT   3   24-FEB-09 1Q2W    1       VERSN                                    
REVDAT   2   05-AUG-03 1Q2W    1       AUTHOR                                   
REVDAT   1   29-JUL-03 1Q2W    0                                                
JRNL        AUTH   J.B.BONANNO,R.FOWLER,S.GUPTA,J.HENDLE,D.LORIMER,R.ROMERO,    
JRNL        AUTH 2 J.M.SAUDER,C.L.WEI,E.T.LIU,S.K.BURLEY,T.HARRIS               
JRNL        TITL   COMPANY SAYS IT MAPPED PART OF SARS VIRUS                    
JRNL        REF    NEW YORK TIMES                V.JULY    C2 2003              
JRNL        REFN                   ISSN 0362-4331                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.86 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1                                           
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ENGH & HUBER                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.86                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 5.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 51825                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.207                           
REMARK   3   R VALUE            (WORKING SET) : 0.194                           
REMARK   3   FREE R VALUE                     : 0.249                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 2630                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.86                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.91                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3000                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 178                          
REMARK   3   BIN FREE R VALUE                    : 0.3300                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4587                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 8                                       
REMARK   3   SOLVENT ATOMS            : 456                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 24.70                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 31.00                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : NULL                          
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : NULL                          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  NULL ; 0.018 ;  NULL       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  NULL ; 1.643 ;  NULL       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  NULL ;  NULL ;  NULL       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  NULL ; 1.478 ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ; 2.401 ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ; 2.822 ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ; 4.120 ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : NULL                                          
REMARK   3   ION PROBE RADIUS   : NULL                                          
REMARK   3   SHRINKAGE RADIUS   : NULL                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1Q2W COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-JUL-03.                  
REMARK 100 THE DEPOSITION ID IS D_1000019847.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-JUL-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 31-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9198                             
REMARK 200  MONOCHROMATOR                  : SAGITALLY FOCUSED SI               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MAR CCD 165 MM                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MAR                                
REMARK 200  DATA SCALING SOFTWARE          : SCALA, CCP4 (SCALA)                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 54747                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.860                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 26.300                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.2                               
REMARK 200  DATA REDUNDANCY                : 13.70                              
REMARK 200  R MERGE                    (I) : 0.07500                            
REMARK 200  R SYM                      (I) : 0.07500                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 7.8000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.86                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.96                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 91.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.60                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.50500                            
REMARK 200  R SYM FOR SHELL            (I) : 0.50500                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: EPMR                                                  
REMARK 200 STARTING MODEL: HOMOLOGY MODEL BASED ON 1LVO                         
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.73                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 20K, SODIUM CHLORIDE, BME,           
REMARK 280  METHIONINE, GLYCEROL, PH 6.5, VAPOR DIFFUSION, TEMPERATURE 294K     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       49.14350            
REMARK 290   SMTRY3   2  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 300 REMARK: BIOLOGICAL DIMER REPRESENTED IN THE ASYMMETRIC UNIT          
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: 2470 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 25640 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -18.0 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 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     SER A    -1                                                      
REMARK 465     LEU A     0                                                      
REMARK 465     SER A     1                                                      
REMARK 465     GLY A     2                                                      
REMARK 465     THR A    45                                                      
REMARK 465     ALA A    46                                                      
REMARK 465     GLU A    47                                                      
REMARK 465     ASP A    48                                                      
REMARK 465     GLY A   302                                                      
REMARK 465     VAL A   303                                                      
REMARK 465     THR A   304                                                      
REMARK 465     GLU A   305                                                      
REMARK 465     GLY A   306                                                      
REMARK 465     ALA B    46                                                      
REMARK 465     GLU B    47                                                      
REMARK 465     ASP B    48                                                      
REMARK 465     MET B    49                                                      
REMARK 465     LEU B    50                                                      
REMARK 465     ASN B    51                                                      
REMARK 465     GLY B   302                                                      
REMARK 465     VAL B   303                                                      
REMARK 465     THR B   304                                                      
REMARK 465     GLU B   305                                                      
REMARK 465     GLY B   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     LEU A  50    CG   CD1  CD2                                       
REMARK 470     LEU B 141    CG   CD1  CD2                                       
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   O    ARG B     4     NE2  GLN B   299              2.08            
REMARK 500   O    HOH B   399     O    HOH B   513              2.08            
REMARK 500   NZ   LYS A     5     OE1  GLU A   290              2.10            
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    ASP B 229   CB  -  CG  -  OD2 ANGL. DEV. =   5.6 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    ASP A  33     -118.85     54.21                                   
REMARK 500    ASN A  84     -118.87     51.04                                   
REMARK 500    HIS A 134        1.12     82.99                                   
REMARK 500    TYR A 154       74.83     33.32                                   
REMARK 500    ASP A 155       -2.59     58.79                                   
REMARK 500    CYS A 300      -82.28   -100.61                                   
REMARK 500    ASP B  33     -133.21     47.54                                   
REMARK 500    HIS B  41        2.37    -66.84                                   
REMARK 500    ASN B  84     -115.77     53.63                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600 15% MPD WAS ADDED TO THE CRYSTALS                                    
REMARK 600 AS A CRYOPROTECTANT.                                                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MPD A 307                 
DBREF  1Q2W A    1   304  UNP    P0C6U8   R1A_CVHSA     3241   3544             
DBREF  1Q2W B    1   304  UNP    P0C6U8   R1A_CVHSA     3241   3544             
SEQADV 1Q2W SER A   -1  UNP  P0C6U8              EXPRESSION TAG                 
SEQADV 1Q2W LEU A    0  UNP  P0C6U8              EXPRESSION TAG                 
SEQADV 1Q2W GLU A  305  UNP  P0C6U8              EXPRESSION TAG                 
SEQADV 1Q2W GLY A  306  UNP  P0C6U8              EXPRESSION TAG                 
SEQADV 1Q2W SER B   -1  UNP  P0C6U8              EXPRESSION TAG                 
SEQADV 1Q2W LEU B    0  UNP  P0C6U8              EXPRESSION TAG                 
SEQADV 1Q2W GLU B  305  UNP  P0C6U8              EXPRESSION TAG                 
SEQADV 1Q2W GLY B  306  UNP  P0C6U8              EXPRESSION TAG                 
SEQRES   1 A  308  SER LEU SER GLY PHE ARG LYS MET ALA PHE PRO SER GLY          
SEQRES   2 A  308  LYS VAL GLU GLY CYS MET VAL GLN VAL THR CYS GLY THR          
SEQRES   3 A  308  THR THR LEU ASN GLY LEU TRP LEU ASP ASP THR VAL TYR          
SEQRES   4 A  308  CYS PRO ARG HIS VAL ILE CYS THR ALA GLU ASP MET LEU          
SEQRES   5 A  308  ASN PRO ASN TYR GLU ASP LEU LEU ILE ARG LYS SER ASN          
SEQRES   6 A  308  HIS SER PHE LEU VAL GLN ALA GLY ASN VAL GLN LEU ARG          
SEQRES   7 A  308  VAL ILE GLY HIS SER MET GLN ASN CYS LEU LEU ARG LEU          
SEQRES   8 A  308  LYS VAL ASP THR SER ASN PRO LYS THR PRO LYS TYR LYS          
SEQRES   9 A  308  PHE VAL ARG ILE GLN PRO GLY GLN THR PHE SER VAL LEU          
SEQRES  10 A  308  ALA CYS TYR ASN GLY SER PRO SER GLY VAL TYR GLN CYS          
SEQRES  11 A  308  ALA MET ARG PRO ASN HIS THR ILE LYS GLY SER PHE LEU          
SEQRES  12 A  308  ASN GLY SER CYS GLY SER VAL GLY PHE ASN ILE ASP TYR          
SEQRES  13 A  308  ASP CYS VAL SER PHE CYS TYR MET HIS HIS MET GLU LEU          
SEQRES  14 A  308  PRO THR GLY VAL HIS ALA GLY THR ASP LEU GLU GLY LYS          
SEQRES  15 A  308  PHE TYR GLY PRO PHE VAL ASP ARG GLN THR ALA GLN ALA          
SEQRES  16 A  308  ALA GLY THR ASP THR THR ILE THR LEU ASN VAL LEU ALA          
SEQRES  17 A  308  TRP LEU TYR ALA ALA VAL ILE ASN GLY ASP ARG TRP PHE          
SEQRES  18 A  308  LEU ASN ARG PHE THR THR THR LEU ASN ASP PHE ASN LEU          
SEQRES  19 A  308  VAL ALA MET LYS TYR ASN TYR GLU PRO LEU THR GLN ASP          
SEQRES  20 A  308  HIS VAL ASP ILE LEU GLY PRO LEU SER ALA GLN THR GLY          
SEQRES  21 A  308  ILE ALA VAL LEU ASP MET CYS ALA ALA LEU LYS GLU LEU          
SEQRES  22 A  308  LEU GLN ASN GLY MET ASN GLY ARG THR ILE LEU GLY SER          
SEQRES  23 A  308  THR ILE LEU GLU ASP GLU PHE THR PRO PHE ASP VAL VAL          
SEQRES  24 A  308  ARG GLN CYS SER GLY VAL THR GLU GLY                          
SEQRES   1 B  308  SER LEU SER GLY PHE ARG LYS MET ALA PHE PRO SER GLY          
SEQRES   2 B  308  LYS VAL GLU GLY CYS MET VAL GLN VAL THR CYS GLY THR          
SEQRES   3 B  308  THR THR LEU ASN GLY LEU TRP LEU ASP ASP THR VAL TYR          
SEQRES   4 B  308  CYS PRO ARG HIS VAL ILE CYS THR ALA GLU ASP MET LEU          
SEQRES   5 B  308  ASN PRO ASN TYR GLU ASP LEU LEU ILE ARG LYS SER ASN          
SEQRES   6 B  308  HIS SER PHE LEU VAL GLN ALA GLY ASN VAL GLN LEU ARG          
SEQRES   7 B  308  VAL ILE GLY HIS SER MET GLN ASN CYS LEU LEU ARG LEU          
SEQRES   8 B  308  LYS VAL ASP THR SER ASN PRO LYS THR PRO LYS TYR LYS          
SEQRES   9 B  308  PHE VAL ARG ILE GLN PRO GLY GLN THR PHE SER VAL LEU          
SEQRES  10 B  308  ALA CYS TYR ASN GLY SER PRO SER GLY VAL TYR GLN CYS          
SEQRES  11 B  308  ALA MET ARG PRO ASN HIS THR ILE LYS GLY SER PHE LEU          
SEQRES  12 B  308  ASN GLY SER CYS GLY SER VAL GLY PHE ASN ILE ASP TYR          
SEQRES  13 B  308  ASP CYS VAL SER PHE CYS TYR MET HIS HIS MET GLU LEU          
SEQRES  14 B  308  PRO THR GLY VAL HIS ALA GLY THR ASP LEU GLU GLY LYS          
SEQRES  15 B  308  PHE TYR GLY PRO PHE VAL ASP ARG GLN THR ALA GLN ALA          
SEQRES  16 B  308  ALA GLY THR ASP THR THR ILE THR LEU ASN VAL LEU ALA          
SEQRES  17 B  308  TRP LEU TYR ALA ALA VAL ILE ASN GLY ASP ARG TRP PHE          
SEQRES  18 B  308  LEU ASN ARG PHE THR THR THR LEU ASN ASP PHE ASN LEU          
SEQRES  19 B  308  VAL ALA MET LYS TYR ASN TYR GLU PRO LEU THR GLN ASP          
SEQRES  20 B  308  HIS VAL ASP ILE LEU GLY PRO LEU SER ALA GLN THR GLY          
SEQRES  21 B  308  ILE ALA VAL LEU ASP MET CYS ALA ALA LEU LYS GLU LEU          
SEQRES  22 B  308  LEU GLN ASN GLY MET ASN GLY ARG THR ILE LEU GLY SER          
SEQRES  23 B  308  THR ILE LEU GLU ASP GLU PHE THR PRO PHE ASP VAL VAL          
SEQRES  24 B  308  ARG GLN CYS SER GLY VAL THR GLU GLY                          
HET    MPD  A 307       8                                                       
HETNAM     MPD (4S)-2-METHYL-2,4-PENTANEDIOL                                    
FORMUL   3  MPD    C6 H14 O2                                                    
FORMUL   4  HOH   *456(H2 O)                                                    
HELIX    1   1 SER A   10  GLY A   15  1                                   6    
HELIX    2   2 HIS A   41  CYS A   44  5                                   4    
HELIX    3   3 ASN A   53  ARG A   60  1                                   8    
HELIX    4   4 SER A   62  PHE A   66  5                                   5    
HELIX    5   5 ILE A  200  ASN A  214  1                                  15    
HELIX    6   6 THR A  226  MET A  235  1                                  10    
HELIX    7   7 LYS A  236  ASN A  238  5                                   3    
HELIX    8   8 THR A  243  LEU A  250  1                                   8    
HELIX    9   9 LEU A  250  GLY A  258  1                                   9    
HELIX   10  10 ALA A  260  GLY A  275  1                                  16    
HELIX   11  11 THR A  292  CYS A  300  1                                   9    
HELIX   12  12 SER B   10  GLY B   15  1                                   6    
HELIX   13  13 HIS B   41  CYS B   44  5                                   4    
HELIX   14  14 ASN B   53  ARG B   60  1                                   8    
HELIX   15  15 SER B   62  HIS B   64  5                                   3    
HELIX   16  16 ILE B  200  ASN B  214  1                                  15    
HELIX   17  17 THR B  226  TYR B  237  1                                  12    
HELIX   18  18 THR B  243  LEU B  250  1                                   8    
HELIX   19  19 LEU B  250  GLY B  258  1                                   9    
HELIX   20  20 ALA B  260  GLY B  275  1                                  16    
HELIX   21  21 THR B  292  SER B  301  1                                  10    
SHEET    1   A 7 VAL A  73  LEU A  75  0                                        
SHEET    2   A 7 LEU A  67  ALA A  70 -1  N  VAL A  68   O  LEU A  75           
SHEET    3   A 7 MET A  17  CYS A  22 -1  N  THR A  21   O  LEU A  67           
SHEET    4   A 7 THR A  25  LEU A  32 -1  O  LEU A  27   N  VAL A  20           
SHEET    5   A 7 THR A  35  PRO A  39 -1  O  TYR A  37   N  LEU A  30           
SHEET    6   A 7 LEU A  86  VAL A  91 -1  O  LEU A  89   N  VAL A  36           
SHEET    7   A 7 VAL A  77  GLN A  83 -1  N  SER A  81   O  ARG A  88           
SHEET    1   B 5 TYR A 101  PHE A 103  0                                        
SHEET    2   B 5 CYS A 156  GLU A 166  1  O  PHE A 159   N  LYS A 102           
SHEET    3   B 5 VAL A 148  ASP A 153 -1  N  ASN A 151   O  SER A 158           
SHEET    4   B 5 THR A 111  TYR A 118 -1  N  SER A 113   O  PHE A 150           
SHEET    5   B 5 SER A 121  ALA A 129 -1  O  CYS A 128   N  PHE A 112           
SHEET    1   C 3 TYR A 101  PHE A 103  0                                        
SHEET    2   C 3 CYS A 156  GLU A 166  1  O  PHE A 159   N  LYS A 102           
SHEET    3   C 3 HIS A 172  THR A 175 -1  O  ALA A 173   N  MET A 165           
SHEET    1   D 7 VAL B  73  LEU B  75  0                                        
SHEET    2   D 7 PHE B  66  ALA B  70 -1  N  VAL B  68   O  LEU B  75           
SHEET    3   D 7 MET B  17  CYS B  22 -1  N  THR B  21   O  LEU B  67           
SHEET    4   D 7 THR B  25  LEU B  32 -1  O  LEU B  27   N  VAL B  20           
SHEET    5   D 7 THR B  35  PRO B  39 -1  O  TYR B  37   N  LEU B  30           
SHEET    6   D 7 LEU B  86  VAL B  91 -1  O  LEU B  89   N  VAL B  36           
SHEET    7   D 7 VAL B  77  GLN B  83 -1  N  SER B  81   O  ARG B  88           
SHEET    1   E 5 LYS B 100  PHE B 103  0                                        
SHEET    2   E 5 CYS B 156  GLU B 166  1  O  VAL B 157   N  LYS B 100           
SHEET    3   E 5 VAL B 148  ASP B 153 -1  N  ASN B 151   O  SER B 158           
SHEET    4   E 5 THR B 111  TYR B 118 -1  N  SER B 113   O  PHE B 150           
SHEET    5   E 5 SER B 121  ALA B 129 -1  O  SER B 123   N  ALA B 116           
SHEET    1   F 3 LYS B 100  PHE B 103  0                                        
SHEET    2   F 3 CYS B 156  GLU B 166  1  O  VAL B 157   N  LYS B 100           
SHEET    3   F 3 HIS B 172  THR B 175 -1  O  ALA B 173   N  MET B 165           
SITE     1 AC1  8 PRO A 108  ILE A 200  LEU A 202  GLU A 240                    
SITE     2 AC1  8 HOH A 314  HOH A 331  HOH A 349  HOH A 373                    
CRYST1   52.244   98.287   67.822  90.00 102.86  90.00 P 1 21 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      0.019141  0.000000  0.004369        0.00000                         
SCALE2      0.000000  0.010174  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015124        0.00000