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Database: PDB
Entry: 1G8Q
LinkDB: 1G8Q
Original site: 1G8Q 
HEADER    IMMUNE SYSTEM                           20-NOV-00   1G8Q              
TITLE     CRYSTAL STRUCTURE OF HUMAN CD81 EXTRACELLULAR DOMAIN, A RECEPTOR FOR  
TITLE    2 HEPATITIS C VIRUS                                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CD81 ANTIGEN, EXTRACELLULAR DOMAIN;                        
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: EXTRACELLULAR DOMAIN;                                      
COMPND   5 SYNONYM: CD81, TARGET OF ANTIPROLIFERATIVE ANTIBODY 1, 26 KDA CELL   
COMPND   6 SURFACE PROTEIN TAPA-1;                                              
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PEZZ18                                    
KEYWDS    ALPHA HELICAL, IMMUNE SYSTEM                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.KITADOKORO,M.BOLOGNESI,D.BORDO,G.GRANDI,G.GALLI,R.PETRACCA,F.FALUGI 
REVDAT   3   04-APR-18 1G8Q    1       REMARK                                   
REVDAT   2   24-FEB-09 1G8Q    1       VERSN                                    
REVDAT   1   21-FEB-01 1G8Q    0                                                
JRNL        AUTH   K.KITADOKORO,D.BORDO,G.GALLI,R.PETRACCA,F.FALUGI,            
JRNL        AUTH 2 S.ABRIGNANI,G.GRANDI,M.BOLOGNESI                             
JRNL        TITL   CD81 EXTRACELLULAR DOMAIN 3D STRUCTURE: INSIGHT INTO THE     
JRNL        TITL 2 TETRASPANIN SUPERFAMILY STRUCTURAL MOTIFS.                   
JRNL        REF    EMBO J.                       V.  20    12 2001              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   11226150                                                     
JRNL        DOI    10.1093/EMBOJ/20.1.12                                        
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 93.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 23143                          
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) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.188                           
REMARK   3   FREE R VALUE                     : 0.238                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1104                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1356                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 194                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 26.30                          
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  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  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : NULL  ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1G8Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-DEC-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000012373.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 19-NOV-99                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.93                               
REMARK 200  MONOCHROMATOR                  : SAGITALLY FOCUSING GE(220) AND A   
REMARK 200                                   MULTILAYER                         
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 21557                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.0                               
REMARK 200  DATA REDUNDANCY                : 6.900                              
REMARK 200  R MERGE                    (I) : 0.03800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 5.2000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.66                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.30300                            
REMARK 200  R SYM FOR SHELL            (I) : 0.31400                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIR                          
REMARK 200 SOFTWARE USED: SHARP                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.28                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, MES, NACL, PH 6.0, VAPOR       
REMARK 280  DIFFUSION, SITTING DROP, TEMPERATURE 298K                           
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       38.58600            
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 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: 1880 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 9150 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -17.0 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     ASP B   238                                                      
REMARK 465     ASP B   239                                                      
REMARK 465     ALA B   240                                                      
REMARK 465     ASN B   241                                                      
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     SER B 279    CB   OG                                             
REMARK 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     GLY B   278                                                      
REMARK 475     SER B   279                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     ASP A  138   CG   OD1  OD2                                       
REMARK 480     PHE B  213   N    CB   CG   CD1  CD2  CE1  CE2                   
REMARK 480     PHE B  213   CZ                                                  
REMARK 480     ASN B  280   N                                                   
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    SER B   277     N    GLY B   278              0.87            
REMARK 500   OD2  ASP A   138     O    HOH A   267              1.91            
REMARK 500   OD2  ASP A   155     O    HOH A   292              2.03            
REMARK 500   O    HIS A   202     O    HOH A   216              2.08            
REMARK 500   NZ   LYS B   271     O    HOH B   154              2.10            
REMARK 500   O    HOH A   279     O    HOH B   168              2.12            
REMARK 500   CG   GLN B   229     O    HOH B   194              2.17            
REMARK 500   O    HOH A   221     O    HOH A   279              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   CZ   PHE B   213     O    HOH A   300     1655     0.78            
REMARK 500   OD1  ASP A   138     O    HOH B   180     2646     1.37            
REMARK 500   CE1  PHE B   213     O    HOH A   300     1655     1.43            
REMARK 500   CE2  PHE B   213     O    HOH A   300     1655     1.66            
REMARK 500   C    ILE B   282     O    HOH A   285     2556     1.83            
REMARK 500   CG2  ILE B   282     O    HOH A   285     2556     1.87            
REMARK 500   O    HOH A   245     O    HOH B   143     1455     2.15            
REMARK 500   CE2  PHE B   213     O    HOH A   223     1655     2.15            
REMARK 500   O    ILE B   282     O    HOH A   285     2556     2.17            
REMARK 500   CB   ILE B   282     O    HOH A   285     2556     2.17            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    ASP A 138   CB    ASP A 138   CG      0.294                       
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    PHE A 126   CB  -  CG  -  CD1 ANGL. DEV. =  -4.5 DEGREES          
REMARK 500    TYR A 127   CB  -  CG  -  CD2 ANGL. DEV. =  -6.7 DEGREES          
REMARK 500    TYR A 127   CB  -  CG  -  CD1 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ASP A 138   CA  -  CB  -  CG  ANGL. DEV. = -15.8 DEGREES          
REMARK 500    ASN A 141   O   -  C   -  N   ANGL. DEV. =  11.8 DEGREES          
REMARK 500    VAL A 147   CA  -  CB  -  CG2 ANGL. DEV. = -14.2 DEGREES          
REMARK 500    HIS A 151   CB  -  CG  -  ND1 ANGL. DEV. =  -8.5 DEGREES          
REMARK 500    SER A 159   N   -  CA  -  CB  ANGL. DEV. =   9.6 DEGREES          
REMARK 500    LEU A 165   CB  -  CG  -  CD2 ANGL. DEV. =  14.0 DEGREES          
REMARK 500    THR A 167   CA  -  C   -  O   ANGL. DEV. =  13.6 DEGREES          
REMARK 500    PHE A 186   CB  -  CG  -  CD2 ANGL. DEV. =  -4.8 DEGREES          
REMARK 500    ASP A 189   OD1 -  CG  -  OD2 ANGL. DEV. = -15.9 DEGREES          
REMARK 500    ASP A 189   CB  -  CG  -  OD2 ANGL. DEV. =  14.9 DEGREES          
REMARK 500    PHE B 213   CA  -  CB  -  CG  ANGL. DEV. =  18.2 DEGREES          
REMARK 500    SER B 268   CB  -  CA  -  C   ANGL. DEV. =  14.2 DEGREES          
REMARK 500    PHE B 286   CG  -  CD1 -  CE1 ANGL. DEV. =   6.6 DEGREES          
REMARK 500    ASP B 296   CB  -  CG  -  OD2 ANGL. DEV. =  -7.1 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    LYS A 201      -78.74   -100.97                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    SER B 259        -10.20                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1G8Q A  113   202  UNP    P60033   CD81_HUMAN     113    202             
DBREF  1G8Q B  213   302  UNP    P60033   CD81_HUMAN     113    202             
SEQADV 1G8Q HIS A  202  UNP  P60033    LEU   202 CONFLICT                       
SEQADV 1G8Q HIS B  302  UNP  P60033    LEU   202 CONFLICT                       
SEQRES   1 A   90  PHE VAL ASN LYS ASP GLN ILE ALA LYS ASP VAL LYS GLN          
SEQRES   2 A   90  PHE TYR ASP GLN ALA LEU GLN GLN ALA VAL VAL ASP ASP          
SEQRES   3 A   90  ASP ALA ASN ASN ALA LYS ALA VAL VAL LYS THR PHE HIS          
SEQRES   4 A   90  GLU THR LEU ASP CYS CYS GLY SER SER THR LEU THR ALA          
SEQRES   5 A   90  LEU THR THR SER VAL LEU LYS ASN ASN LEU CYS PRO SER          
SEQRES   6 A   90  GLY SER ASN ILE ILE SER ASN LEU PHE LYS GLU ASP CYS          
SEQRES   7 A   90  HIS GLN LYS ILE ASP ASP LEU PHE SER GLY LYS HIS              
SEQRES   1 B   90  PHE VAL ASN LYS ASP GLN ILE ALA LYS ASP VAL LYS GLN          
SEQRES   2 B   90  PHE TYR ASP GLN ALA LEU GLN GLN ALA VAL VAL ASP ASP          
SEQRES   3 B   90  ASP ALA ASN ASN ALA LYS ALA VAL VAL LYS THR PHE HIS          
SEQRES   4 B   90  GLU THR LEU ASP CYS CYS GLY SER SER THR LEU THR ALA          
SEQRES   5 B   90  LEU THR THR SER VAL LEU LYS ASN ASN LEU CYS PRO SER          
SEQRES   6 B   90  GLY SER ASN ILE ILE SER ASN LEU PHE LYS GLU ASP CYS          
SEQRES   7 B   90  HIS GLN LYS ILE ASP ASP LEU PHE SER GLY LYS HIS              
FORMUL   3  HOH   *194(H2 O)                                                    
HELIX    1   1 ASN A  115  ASP A  137  1                                  23    
HELIX    2   2 ALA A  140  ASP A  155  1                                  16    
HELIX    3   3 LEU A  162  ALA A  164  5                                   3    
HELIX    4   4 LEU A  165  ASN A  172  1                                   8    
HELIX    5   5 ASN A  180  PHE A  186  1                                   7    
HELIX    6   6 ASP A  189  GLY A  200  1                                  12    
HELIX    7   7 ASN B  215  VAL B  236  1                                  22    
HELIX    8   8 ASN B  242  ASP B  255  1                                  14    
HELIX    9   9 LEU B  262  ASN B  272  1                                  11    
HELIX   10  10 GLY B  278  ASN B  284  1                                   7    
HELIX   11  11 ASP B  289  GLY B  300  1                                  12    
SSBOND   1 CYS A  156    CYS A  190                          1555   1555  2.06  
SSBOND   2 CYS A  157    CYS A  175                          1555   1555  2.01  
SSBOND   3 CYS B  256    CYS B  290                          1555   1555  2.09  
SSBOND   4 CYS B  257    CYS B  275                          1555   1555  2.00  
CRYST1   31.485   77.172   38.462  90.00 107.39  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      0.031761 -0.000001  0.009946        0.00000                         
SCALE2      0.000000  0.012958  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.027245        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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