PDB Short entry for 1XR9
HEADER    IMMUNE SYSTEM/LIGASE                    14-OCT-04   1XR9              
TITLE     CRYSTAL STRUCTURES OF HLA-B*1501 IN COMPLEX WITH PEPTIDES FROM HUMAN  
TITLE    2 UBCH6 AND EPSTEIN-BARR VIRUS EBNA-3                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, B-15 ALPHA CHAIN;  
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: RESIDUES 1-276;                                            
COMPND   5 SYNONYM: MHC CLASS I ANTIGEN B*15, HLA-B*1501;                       
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: BETA-2-MICROGLOBULIN;                                      
COMPND   9 CHAIN: B;                                                            
COMPND  10 SYNONYM: HDCMA22P;                                                   
COMPND  11 ENGINEERED: YES;                                                     
COMPND  12 MOL_ID: 3;                                                           
COMPND  13 MOLECULE: UBIQUITIN-CONJUGATING ENZYME E2 E1;                        
COMPND  14 CHAIN: C;                                                            
COMPND  15 FRAGMENT: RESIDUES 83-91;                                            
COMPND  16 SYNONYM: UBIQUITIN-PROTEIN LIGASE E1, UBIQUITIN CARRIER PROTEIN E1,  
COMPND  17 UBCH6;                                                               
COMPND  18 EC: 6.3.2.19;                                                        
COMPND  19 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: HLA-BW62.1;                                                    
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET28A;                                   
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  13 ORGANISM_COMMON: HUMAN;                                              
SOURCE  14 ORGANISM_TAXID: 9606;                                                
SOURCE  15 GENE: B2M;                                                           
SOURCE  16 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE  17 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE  18 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE  19 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  20 EXPRESSION_SYSTEM_PLASMID: PET28A;                                   
SOURCE  21 MOL_ID: 3;                                                           
SOURCE  22 SYNTHETIC: YES;                                                      
SOURCE  23 OTHER_DETAILS: CHEMICAL SYNTHESIS                                    
KEYWDS    MAJOR HISTOCOMPATIBILITY ANTIGEN, MHC, HLA, HLA-B62, HLA-B*1501,      
KEYWDS   2 COMPLEX (ANTIGEN-PEPTIDE), IMMUNE SYSTEM-LIGASE COMPLEX              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    G.RODER,T.BLICHER,B.R.JOHANNESSEN,O.KRISTENSEN,S.BUUS,M.GAJHEDE       
REVDAT   3   13-JUL-11 1XR9    1       VERSN                                    
REVDAT   2   18-MAR-08 1XR9    1       JRNL   COMPND VERSN                      
REVDAT   1   14-APR-05 1XR9    0                                                
JRNL        AUTH   G.RODER,T.BLICHER,S.JUSTESEN,B.JOHANNESEN,O.KRISTENSEN,      
JRNL        AUTH 2 J.KASTRUP,S.BUUS,M.GAJHEDE                                   
JRNL        TITL   CRYSTAL STRUCTURES OF TWO PEPTIDE-HLA-B*1501 COMPLEXES;      
JRNL        TITL 2 STRUCTURAL CHARACTERIZATION OF THE HLA-B62 SUPERTYPE         
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  62  1300 2006              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   17057332                                                     
JRNL        DOI    10.1107/S0907444906027636                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.79 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5                                             
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.79                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.08                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 41032                          
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) : 0.180                           
REMARK   3   R VALUE            (WORKING SET) : 0.177                           
REMARK   3   FREE R VALUE                     : 0.232                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.027                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2172                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.79                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.83                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2786                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 93.30                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2260                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 153                          
REMARK   3   BIN FREE R VALUE                    : 0.2680                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3147                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 20                                      
REMARK   3   SOLVENT ATOMS            : 595                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 17.40                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.31                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : 0.00000                                              
REMARK   3    B33 (A**2) : 0.00000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
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      : 0.954                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.926                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3422 ; 0.013 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4667 ; 1.437 ; 1.928       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   410 ; 6.004 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   183 ;34.732 ;23.224       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   545 ;13.855 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    33 ;17.408 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   469 ; 0.103 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2744 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1640 ; 0.194 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  2267 ; 0.303 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   527 ; 0.150 ; 0.200       
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):    42 ; 0.218 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    47 ; 0.141 ; 0.200       
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):  2081 ; 0.973 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3291 ; 1.498 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1554 ; 2.354 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1376 ; 3.749 ; 4.500       
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 : MASK BULK SOLVENT                                    
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: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 1XR9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 18-OCT-04.                  
REMARK 100 THE RCSB ID CODE IS RCSB030675.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-JUL-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : BW7B                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.84140                            
REMARK 200  MONOCHROMATOR                  : BENT SINGLE-CRYSTAL GERMANIUM      
REMARK 200                                   TRIANGULAR MONOCHROMATOR           
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MAR SCANNER 345 MM PLATE           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 43204                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.776                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 31.654                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.4                               
REMARK 200  DATA REDUNDANCY                : 3.700                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.06800                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.78                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.87                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 83.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.70                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.29800                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: B*1501/LEKARGSTY COMPLEX WITHOUT PEPTIDE             
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2M NH4AC, 0.1M TRI-SODIUM CITRATE      
REMARK 280  DIHYDRATE, PH 5.6, 30% W/V PEG4000, VAPOR DIFFUSION, HANGING        
REMARK 280  DROP, TEMPERATURE 277K                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       25.17950            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       54.98450            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       40.69450            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       54.98450            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       25.17950            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       40.69450            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 5230 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18540 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -47.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
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 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    HOH B  1107     O    HOH B  1127              2.09            
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 A 183   CB  -  CG  -  OD2 ANGL. DEV. =   5.4 DEGREES          
REMARK 500    ASP A 227   CB  -  CG  -  OD2 ANGL. DEV. =   5.4 DEGREES          
REMARK 500    LEU A 272   CA  -  CB  -  CG  ANGL. DEV. =  17.1 DEGREES          
REMARK 500    ASP B  34   CB  -  CG  -  OD2 ANGL. DEV. =   6.3 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    ARG A  14       68.81   -161.73                                   
REMARK 500    ASP A  29     -125.39     48.80                                   
REMARK 500    GLN A 224       43.58   -108.77                                   
REMARK 500    ARG A 239      -22.81     88.71                                   
REMARK 500    TRP B  60       -9.58     78.59                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A3165        DISTANCE =  5.49 ANGSTROMS                       
REMARK 525    HOH A3283        DISTANCE =  5.79 ANGSTROMS                       
REMARK 525    HOH A3304        DISTANCE =  5.06 ANGSTROMS                       
REMARK 525    HOH A3342        DISTANCE =  5.14 ANGSTROMS                       
REMARK 525    HOH A3391        DISTANCE =  6.75 ANGSTROMS                       
REMARK 525    HOH A3393        DISTANCE =  5.69 ANGSTROMS                       
REMARK 525    HOH A3444        DISTANCE =  5.45 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1001                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 1002                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE URE A 2001                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 3001                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1XR8   RELATED DB: PDB                                   
REMARK 900 HLA-B*1501 COMPLEXED WITH LEKARGSTY (PENDING RELEASE)                
DBREF  1XR9 A    1   276  UNP    P30464   1B15_HUMAN      25    300             
DBREF  1XR9 B    1    99  UNP    P61769   B2MG_HUMAN      21    119             
DBREF  1XR9 C    1     9  UNP    P51965   UB2E1_HUMAN     83     91             
SEQRES   1 A  276  GLY SER HIS SER MET ARG TYR PHE TYR THR ALA MET SER          
SEQRES   2 A  276  ARG PRO GLY ARG GLY GLU PRO ARG PHE ILE ALA VAL GLY          
SEQRES   3 A  276  TYR VAL ASP ASP THR GLN PHE VAL ARG PHE ASP SER ASP          
SEQRES   4 A  276  ALA ALA SER PRO ARG MET ALA PRO ARG ALA PRO TRP ILE          
SEQRES   5 A  276  GLU GLN GLU GLY PRO GLU TYR TRP ASP ARG GLU THR GLN          
SEQRES   6 A  276  ILE SER LYS THR ASN THR GLN THR TYR ARG GLU SER LEU          
SEQRES   7 A  276  ARG ASN LEU ARG GLY TYR TYR ASN GLN SER GLU ALA GLY          
SEQRES   8 A  276  SER HIS THR LEU GLN ARG MET TYR GLY CYS ASP VAL GLY          
SEQRES   9 A  276  PRO ASP GLY ARG LEU LEU ARG GLY HIS ASP GLN SER ALA          
SEQRES  10 A  276  TYR ASP GLY LYS ASP TYR ILE ALA LEU ASN GLU ASP LEU          
SEQRES  11 A  276  SER SER TRP THR ALA ALA ASP THR ALA ALA GLN ILE THR          
SEQRES  12 A  276  GLN ARG LYS TRP GLU ALA ALA ARG GLU ALA GLU GLN TRP          
SEQRES  13 A  276  ARG ALA TYR LEU GLU GLY LEU CYS VAL GLU TRP LEU ARG          
SEQRES  14 A  276  ARG TYR LEU GLU ASN GLY LYS GLU THR LEU GLN ARG ALA          
SEQRES  15 A  276  ASP PRO PRO LYS THR HIS VAL THR HIS HIS PRO ILE SER          
SEQRES  16 A  276  ASP HIS GLU ALA THR LEU ARG CYS TRP ALA LEU GLY PHE          
SEQRES  17 A  276  TYR PRO ALA GLU ILE THR LEU THR TRP GLN ARG ASP GLY          
SEQRES  18 A  276  GLU ASP GLN THR GLN ASP THR GLU LEU VAL GLU THR ARG          
SEQRES  19 A  276  PRO ALA GLY ASP ARG THR PHE GLN LYS TRP ALA ALA VAL          
SEQRES  20 A  276  VAL VAL PRO SER GLY GLU GLU GLN ARG TYR THR CYS HIS          
SEQRES  21 A  276  VAL GLN HIS GLU GLY LEU PRO LYS PRO LEU THR LEU ARG          
SEQRES  22 A  276  TRP GLU PRO                                                  
SEQRES   1 B   99  ILE GLN ARG THR PRO LYS ILE GLN VAL TYR SER ARG HIS          
SEQRES   2 B   99  PRO ALA GLU ASN GLY LYS SER ASN PHE LEU ASN CYS TYR          
SEQRES   3 B   99  VAL SER GLY PHE HIS PRO SER ASP ILE GLU VAL ASP LEU          
SEQRES   4 B   99  LEU LYS ASN GLY GLU ARG ILE GLU LYS VAL GLU HIS SER          
SEQRES   5 B   99  ASP LEU SER PHE SER LYS ASP TRP SER PHE TYR LEU LEU          
SEQRES   6 B   99  TYR TYR THR GLU PHE THR PRO THR GLU LYS ASP GLU TYR          
SEQRES   7 B   99  ALA CYS ARG VAL ASN HIS VAL THR LEU SER GLN PRO LYS          
SEQRES   8 B   99  ILE VAL LYS TRP ASP ARG ASP MET                              
SEQRES   1 C    9  ILE LEU GLY PRO PRO GLY SER VAL TYR                          
HET    SO4  A1001       5                                                       
HET    SO4  B1002       5                                                       
HET    URE  A2001       4                                                       
HET    GOL  A3001       6                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     URE UREA                                                             
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   4  SO4    2(O4 S 2-)                                                   
FORMUL   6  URE    C H4 N2 O                                                    
FORMUL   7  GOL    C3 H8 O3                                                     
FORMUL   8  HOH   *595(H2 O)                                                    
HELIX    1   1 ALA A   49  GLU A   53  5                                   5    
HELIX    2   2 GLY A   56  TYR A   85  1                                  30    
HELIX    3   3 ASP A  137  ALA A  150  1                                  14    
HELIX    4   4 ARG A  151  GLY A  162  1                                  12    
HELIX    5   5 GLY A  162  GLY A  175  1                                  14    
HELIX    6   6 GLY A  175  GLN A  180  1                                   6    
HELIX    7   7 THR A  225  THR A  228  5                                   4    
HELIX    8   8 GLU A  253  GLN A  255  5                                   3    
SHEET    1   A 8 ALA A  46  PRO A  47  0                                        
SHEET    2   A 8 THR A  31  ASP A  37 -1  N  ARG A  35   O  ALA A  46           
SHEET    3   A 8 ARG A  21  VAL A  28 -1  N  GLY A  26   O  PHE A  33           
SHEET    4   A 8 HIS A   3  MET A  12 -1  N  ARG A   6   O  TYR A  27           
SHEET    5   A 8 THR A  94  VAL A 103 -1  O  ARG A  97   N  TYR A   9           
SHEET    6   A 8 LEU A 109  TYR A 118 -1  O  LEU A 110   N  ASP A 102           
SHEET    7   A 8 LYS A 121  LEU A 126 -1  O  LEU A 126   N  ASP A 114           
SHEET    8   A 8 TRP A 133  ALA A 135 -1  O  THR A 134   N  ALA A 125           
SHEET    1   B 4 LYS A 186  PRO A 193  0                                        
SHEET    2   B 4 GLU A 198  PHE A 208 -1  O  TRP A 204   N  HIS A 188           
SHEET    3   B 4 PHE A 241  PRO A 250 -1  O  ALA A 245   N  CYS A 203           
SHEET    4   B 4 GLU A 229  LEU A 230 -1  N  GLU A 229   O  ALA A 246           
SHEET    1   C 4 LYS A 186  PRO A 193  0                                        
SHEET    2   C 4 GLU A 198  PHE A 208 -1  O  TRP A 204   N  HIS A 188           
SHEET    3   C 4 PHE A 241  PRO A 250 -1  O  ALA A 245   N  CYS A 203           
SHEET    4   C 4 ARG A 234  PRO A 235 -1  N  ARG A 234   O  GLN A 242           
SHEET    1   D 4 GLU A 222  ASP A 223  0                                        
SHEET    2   D 4 THR A 214  ARG A 219 -1  N  ARG A 219   O  GLU A 222           
SHEET    3   D 4 TYR A 257  GLN A 262 -1  O  HIS A 260   N  THR A 216           
SHEET    4   D 4 LEU A 270  LEU A 272 -1  O  LEU A 272   N  CYS A 259           
SHEET    1   E 4 LYS B   6  SER B  11  0                                        
SHEET    2   E 4 ASN B  21  PHE B  30 -1  O  ASN B  24   N  TYR B  10           
SHEET    3   E 4 PHE B  62  PHE B  70 -1  O  PHE B  70   N  ASN B  21           
SHEET    4   E 4 GLU B  50  HIS B  51 -1  N  GLU B  50   O  TYR B  67           
SHEET    1   F 4 LYS B   6  SER B  11  0                                        
SHEET    2   F 4 ASN B  21  PHE B  30 -1  O  ASN B  24   N  TYR B  10           
SHEET    3   F 4 PHE B  62  PHE B  70 -1  O  PHE B  70   N  ASN B  21           
SHEET    4   F 4 SER B  55  PHE B  56 -1  N  SER B  55   O  TYR B  63           
SHEET    1   G 4 GLU B  44  ARG B  45  0                                        
SHEET    2   G 4 GLU B  36  LYS B  41 -1  N  LYS B  41   O  GLU B  44           
SHEET    3   G 4 TYR B  78  ASN B  83 -1  O  ARG B  81   N  ASP B  38           
SHEET    4   G 4 LYS B  91  LYS B  94 -1  O  LYS B  91   N  VAL B  82           
SSBOND   1 CYS A  101    CYS A  164                          1555   1555  2.02  
SSBOND   2 CYS A  203    CYS A  259                          1555   1555  2.00  
SSBOND   3 CYS B   25    CYS B   80                          1555   1555  2.03  
CISPEP   1 TYR A  209    PRO A  210          0         1.57                     
CISPEP   2 HIS B   31    PRO B   32          0        -1.85                     
SITE     1 AC1  6 ASP A  39  ASN A 127  GLU A 128  ASP A 129                    
SITE     2 AC1  6 HOH A3039  HOH A3325                                          
SITE     1 AC2  5 GOL A3001  SER B  57  LYS B  58  HOH B1009                    
SITE     2 AC2  5 HOH B1100                                                     
SITE     1 AC3  5 ARG A 234  GLN A 242  SER B  11  HIS B  13                    
SITE     2 AC3  5 PRO B  14                                                     
SITE     1 AC4  6 THR A 233  PHE A 241  HOH A3389  TYR B  26                    
SITE     2 AC4  6 TYR B  63  SO4 B1002                                          
CRYST1   50.359   81.389  109.969  90.00  90.00  90.00 P 21 21 21    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      0.019900  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.012300  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009100        0.00000