PDB Short entry for 2CLR
HEADER    HISTOCOMPATIBILITY ANTIGEN              01-AUG-94   2CLR              
TITLE     THREE DIMENSIONAL STRUCTURE OF A PEPTIDE EXTENDING OUT ONE            
TITLE    2 END OF A CLASS I MHC BINDING SITE                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A 0201)            
COMPND   3 (ALPHA CHAIN);                                                       
COMPND   4 CHAIN: A, D;                                                         
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: BETA 2-MICROGLOBULIN;                                      
COMPND   8 CHAIN: B, E;                                                         
COMPND   9 ENGINEERED: YES;                                                     
COMPND  10 MOL_ID: 3;                                                           
COMPND  11 MOLECULE: DECAMERIC PEPTIDE FROM CALRETICULIN;                       
COMPND  12 CHAIN: C, F;                                                         
COMPND  13 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: BETA-2-MICROGLOBULIN;                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 MOL_ID: 2;                                                           
SOURCE   9 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  10 ORGANISM_COMMON: HUMAN;                                              
SOURCE  11 ORGANISM_TAXID: 9606;                                                
SOURCE  12 GENE: BETA-2-MICROGLOBULIN;                                          
SOURCE  13 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  14 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  15 MOL_ID: 3;                                                           
SOURCE  16 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  17 ORGANISM_COMMON: HUMAN;                                              
SOURCE  18 ORGANISM_TAXID: 9606                                                 
KEYWDS    HISTOCOMPATIBILITY ANTIGEN                                            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    E.J.COLLINS,D.N.GARBOCZI,D.C.WILEY                                    
REVDAT   3   24-FEB-09 2CLR    1       VERSN                                    
REVDAT   2   01-APR-03 2CLR    1       JRNL                                     
REVDAT   1   31-MAR-95 2CLR    0                                                
JRNL        AUTH   E.J.COLLINS,D.N.GARBOCZI,D.C.WILEY                           
JRNL        TITL   THREE-DIMENSIONAL STRUCTURE OF A PEPTIDE EXTENDING           
JRNL        TITL 2 FROM ONE END OF A CLASS I MHC BINDING SITE.                  
JRNL        REF    NATURE                        V. 371   626 1994              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   7935798                                                      
JRNL        DOI    10.1038/371626A0                                             
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   D.N.GARBOCZI,D.R.MADDEN,D.C.WILEY                            
REMARK   1  TITL   FIVE VIRAL PEPTIDE-HLA-A2 CO-CRYSTALS:                       
REMARK   1  TITL 2 SIMULTANEOUS SPACE GROUP DETERMINATION AND X-RAY             
REMARK   1  TITL 3 DATA COLLECTION                                              
REMARK   1  REF    J.MOL.BIOL.                   V. 239   581 1994              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   H.-C.GUO,D.R.MADDEN,M.L.SILVER,T.S.JARDETZKY,                
REMARK   1  AUTH 2 J.C.GORGA,J.L.STROMINGER,D.C.WILEY                           
REMARK   1  TITL   COMPARISON OF THE P2 SPECIFICITY POCKET IN THREE             
REMARK   1  TITL 2 HUMAN HISTOCOMPATIBILITY ANTIGENS:                           
REMARK   1  TITL 3 HLA-A(ASTERISK)6801, HLA-A(ASTERISK)0201, AND                
REMARK   1  TITL 4 HLA-B(ASTERISK)2705                                          
REMARK   1  REF    PROC.NATL.ACAD.SCI.USA        V.  90  8053 1993              
REMARK   1  REFN                   ISSN 0027-8424                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   D.R.MADDEN,D.N.GARBOCZI,D.C.WILEY                            
REMARK   1  TITL   THE ANTIGENIC IDENTITY OF PEPTIDE-MHC COMPLEXES A            
REMARK   1  TITL 2 COMPARISON OF THE CONFORMATIONS OF FIVE VIRAL                
REMARK   1  TITL 3 PEPTIDES PRESENTED BY HLA-A2                                 
REMARK   1  REF    CELL(CAMBRIDGE,MASS.)         V.  75   693 1993              
REMARK   1  REFN                   ISSN 0092-8674                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   D.N.GARBOCZI,D.T.HUNG,D.C.WILEY                              
REMARK   1  TITL   HLA-A2-PEPTIDE COMPLEXES: REFOLDING AND                      
REMARK   1  TITL 2 CRYSTALLIZATION OF MOLECULES EXPRESSED IN                    
REMARK   1  TITL 3 ESCHERICHIA COLI AND COMPLEXED WITH SINGLE                   
REMARK   1  TITL 4 ANTIGENIC PEPTIDES                                           
REMARK   1  REF    PROC.NATL.ACAD.SCI.USA        V.  89  3429 1992              
REMARK   1  REFN                   ISSN 0027-8424                               
REMARK   1 REFERENCE 5                                                          
REMARK   1  AUTH   M.A.SAPER,P.J.BJORKMAN,D.C.WILEY                             
REMARK   1  TITL   REFINED STRUCTURE OF THE HUMAN HISTOCOMPATIBILITY            
REMARK   1  TITL 2 ANTIGEN HLA-A2 AT 2.6 ANGSTROMS RESOLUTION                   
REMARK   1  REF    J.MOL.BIOL.                   V. 219   277 1991              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 6                                                          
REMARK   1  AUTH   P.J.BJORKMAN,M.A.SAPER,B.SAMRAOUI,W.S.BENNETT,               
REMARK   1  AUTH 2 J.L.STROMINGER,D.C.WILEY                                     
REMARK   1  TITL   STRUCTURE OF THE HUMAN CLASS I HISTOCOMPATIBILITY            
REMARK   1  TITL 2 ANTIGEN, HLA-A2                                              
REMARK   1  REF    NATURE                        V. 329   506 1987              
REMARK   1  REFN                   ISSN 0028-0836                               
REMARK   1 REFERENCE 7                                                          
REMARK   1  AUTH   P.J.BJORKMAN,M.A.SAPER,B.SAMRAOUI,W.S.BENNETT,               
REMARK   1  AUTH 2 J.L.STROMINGER,D.C.WILEY                                     
REMARK   1  TITL   THE FOREIGN ANTIGEN BINDING SITE AND T CELL                  
REMARK   1  TITL 2 RECOGNITION REGIONS OF CLASS I HISTOCOMPATIBILITY            
REMARK   1  TITL 3 ANTIGENS                                                     
REMARK   1  REF    NATURE                        V. 329   512 1987              
REMARK   1  REFN                   ISSN 0028-0836                               
REMARK   1 REFERENCE 8                                                          
REMARK   1  AUTH   P.J.BJORKMAN,J.L.STROMINGER,D.C.WILEY                        
REMARK   1  TITL   CRYSTALLIZATION AND X-RAY DIFFRACTION STUDIES ON             
REMARK   1  TITL 2 THE HISTOCOMPATIBILITY ANTIGENS HLA-A2 AND HLA-A28           
REMARK   1  TITL 3 FROM HUMAN CELL MEMBRANES                                    
REMARK   1  REF    J.MOL.BIOL.                   V. 186   205 1985              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR                                               
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 6.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 42669                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.236                           
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
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) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 6308                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.009                           
REMARK   3   BOND ANGLES            (DEGREES) : 2.34                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : 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  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2CLR COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.92                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.51                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,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                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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:                                                              
REMARK 300 THE TRANSFORMATIONS PRESENTED ON MTRIX RECORDS BELOW WILL            
REMARK 300 YIELD APPROXIMATE COORDINATES AS FOLLOWS:                            
REMARK 300 MTRIX 1: APPLIED TO CHAIN D RESIDUES 1 - 183,                        
REMARK 300          APPROXIMATELY GENERATES CHAIN A RESIDUES 1 - 183            
REMARK 300                                                                      
REMARK 300 MTRIX 1: APPLIED TO CHAIN F RESIDUES 1 - 10,                         
REMARK 300          APPROXIMATELY GENERATES CHAIN C RESIDUES 1 - 10             
REMARK 300                                                                      
REMARK 300 MTRIX 2: APPLIED TO CHAIN D RESIDUES 184 - 275,                      
REMARK 300          APPROXIMATELY GENERATES CHAIN A RESIDUES 184 - 275          
REMARK 300                                                                      
REMARK 300 MTRIX 3: APPLIED TO CHAIN E RESIDUES 1 - 99,                         
REMARK 300          APPROXIMATELY GENERATES CHAIN B RESIDUES 1 - 99             
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                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4460 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18480 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -22.0 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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4450 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18530 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -20.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, E, F                               
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: 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       69.91   -117.29                                   
REMARK 500    ASP A  29     -126.71     60.94                                   
REMARK 500    GLN A  54       30.22    -95.90                                   
REMARK 500    LEU A 110      -57.70   -123.22                                   
REMARK 500    HIS A 114      111.07   -165.39                                   
REMARK 500    TYR A 123      -62.42   -105.49                                   
REMARK 500    ALA A 136      -94.59    -63.81                                   
REMARK 500    THR A 178      -61.63    -95.74                                   
REMARK 500    VAL A 194      -68.82    -99.07                                   
REMARK 500    SER A 195     -137.09   -115.47                                   
REMARK 500    HIS A 197       18.19   -142.81                                   
REMARK 500    GLN A 224       27.12   -141.98                                   
REMARK 500    TRP B  60       -9.01     84.13                                   
REMARK 500    ARG D  14       69.48   -116.00                                   
REMARK 500    ASP D  29     -123.91     60.60                                   
REMARK 500    GLN D  54       32.08    -98.24                                   
REMARK 500    HIS D 114      107.97   -167.05                                   
REMARK 500    TYR D 123      -65.19   -105.18                                   
REMARK 500    LEU D 130       19.66     59.04                                   
REMARK 500    ALA D 136      -90.27    -58.91                                   
REMARK 500    GLN D 224       25.26   -140.52                                   
REMARK 500    PRO E  32     -171.31    -69.26                                   
REMARK 500    TRP E  60       -2.05     81.82                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  2CLR A    1   275  UNP    P01892   1A02_HUMAN      25    299             
DBREF  2CLR B    1    99  UNP    P61769   B2MG_HUMAN      21    119             
DBREF  2CLR C    1    10  UNP    P27797   CRTC_HUMAN       1     10             
DBREF  2CLR D    1   275  UNP    P01892   1A02_HUMAN      25    299             
DBREF  2CLR E    1    99  UNP    P61769   B2MG_HUMAN      21    119             
DBREF  2CLR F    1    10  UNP    P27797   CRTC_HUMAN       1     10             
SEQRES   1 A  275  GLY SER HIS SER MET ARG TYR PHE PHE THR SER VAL SER          
SEQRES   2 A  275  ARG PRO GLY ARG GLY GLU PRO ARG PHE ILE ALA VAL GLY          
SEQRES   3 A  275  TYR VAL ASP ASP THR GLN PHE VAL ARG PHE ASP SER ASP          
SEQRES   4 A  275  ALA ALA SER GLN ARG MET GLU PRO ARG ALA PRO TRP ILE          
SEQRES   5 A  275  GLU GLN GLU GLY PRO GLU TYR TRP ASP GLY GLU THR ARG          
SEQRES   6 A  275  LYS VAL LYS ALA HIS SER GLN THR HIS ARG VAL ASP LEU          
SEQRES   7 A  275  GLY THR LEU ARG GLY TYR TYR ASN GLN SER GLU ALA GLY          
SEQRES   8 A  275  SER HIS THR VAL GLN ARG MET TYR GLY CYS ASP VAL GLY          
SEQRES   9 A  275  SER ASP TRP ARG PHE LEU ARG GLY TYR HIS GLN TYR ALA          
SEQRES  10 A  275  TYR ASP GLY LYS ASP TYR ILE ALA LEU LYS GLU ASP LEU          
SEQRES  11 A  275  ARG SER TRP THR ALA ALA ASP MET ALA ALA GLN THR THR          
SEQRES  12 A  275  LYS HIS LYS TRP GLU ALA ALA HIS VAL ALA GLU GLN LEU          
SEQRES  13 A  275  ARG ALA TYR LEU GLU GLY THR CYS VAL GLU TRP LEU ARG          
SEQRES  14 A  275  ARG TYR LEU GLU ASN GLY LYS GLU THR LEU GLN ARG THR          
SEQRES  15 A  275  ASP ALA PRO LYS THR HIS MET THR HIS HIS ALA VAL SER          
SEQRES  16 A  275  ASP HIS GLU ALA THR LEU ARG CYS TRP ALA LEU SER PHE          
SEQRES  17 A  275  TYR PRO ALA GLU ILE THR LEU THR TRP GLN ARG ASP GLY          
SEQRES  18 A  275  GLU ASP GLN THR GLN ASP THR GLU LEU VAL GLU THR ARG          
SEQRES  19 A  275  PRO ALA GLY ASP GLY THR PHE GLN LYS TRP ALA ALA VAL          
SEQRES  20 A  275  VAL VAL PRO SER GLY GLN GLU GLN ARG TYR THR CYS HIS          
SEQRES  21 A  275  VAL GLN HIS GLU GLY LEU PRO LYS PRO LEU THR LEU ARG          
SEQRES  22 A  275  TRP GLU                                                      
SEQRES   1 B  100  MET ILE GLN ARG THR PRO LYS ILE GLN VAL TYR SER ARG          
SEQRES   2 B  100  HIS PRO ALA GLU ASN GLY LYS SER ASN PHE LEU ASN CYS          
SEQRES   3 B  100  TYR VAL SER GLY PHE HIS PRO SER ASP ILE GLU VAL ASP          
SEQRES   4 B  100  LEU LEU LYS ASN GLY GLU ARG ILE GLU LYS VAL GLU HIS          
SEQRES   5 B  100  SER ASP LEU SER PHE SER LYS ASP TRP SER PHE TYR LEU          
SEQRES   6 B  100  LEU TYR TYR THR GLU PHE THR PRO THR GLU LYS ASP GLU          
SEQRES   7 B  100  TYR ALA CYS ARG VAL ASN HIS VAL THR LEU SER GLN PRO          
SEQRES   8 B  100  LYS ILE VAL LYS TRP ASP ARG ASP MET                          
SEQRES   1 C   10  MET LEU LEU SER VAL PRO LEU LEU LEU GLY                      
SEQRES   1 D  275  GLY SER HIS SER MET ARG TYR PHE PHE THR SER VAL SER          
SEQRES   2 D  275  ARG PRO GLY ARG GLY GLU PRO ARG PHE ILE ALA VAL GLY          
SEQRES   3 D  275  TYR VAL ASP ASP THR GLN PHE VAL ARG PHE ASP SER ASP          
SEQRES   4 D  275  ALA ALA SER GLN ARG MET GLU PRO ARG ALA PRO TRP ILE          
SEQRES   5 D  275  GLU GLN GLU GLY PRO GLU TYR TRP ASP GLY GLU THR ARG          
SEQRES   6 D  275  LYS VAL LYS ALA HIS SER GLN THR HIS ARG VAL ASP LEU          
SEQRES   7 D  275  GLY THR LEU ARG GLY TYR TYR ASN GLN SER GLU ALA GLY          
SEQRES   8 D  275  SER HIS THR VAL GLN ARG MET TYR GLY CYS ASP VAL GLY          
SEQRES   9 D  275  SER ASP TRP ARG PHE LEU ARG GLY TYR HIS GLN TYR ALA          
SEQRES  10 D  275  TYR ASP GLY LYS ASP TYR ILE ALA LEU LYS GLU ASP LEU          
SEQRES  11 D  275  ARG SER TRP THR ALA ALA ASP MET ALA ALA GLN THR THR          
SEQRES  12 D  275  LYS HIS LYS TRP GLU ALA ALA HIS VAL ALA GLU GLN LEU          
SEQRES  13 D  275  ARG ALA TYR LEU GLU GLY THR CYS VAL GLU TRP LEU ARG          
SEQRES  14 D  275  ARG TYR LEU GLU ASN GLY LYS GLU THR LEU GLN ARG THR          
SEQRES  15 D  275  ASP ALA PRO LYS THR HIS MET THR HIS HIS ALA VAL SER          
SEQRES  16 D  275  ASP HIS GLU ALA THR LEU ARG CYS TRP ALA LEU SER PHE          
SEQRES  17 D  275  TYR PRO ALA GLU ILE THR LEU THR TRP GLN ARG ASP GLY          
SEQRES  18 D  275  GLU ASP GLN THR GLN ASP THR GLU LEU VAL GLU THR ARG          
SEQRES  19 D  275  PRO ALA GLY ASP GLY THR PHE GLN LYS TRP ALA ALA VAL          
SEQRES  20 D  275  VAL VAL PRO SER GLY GLN GLU GLN ARG TYR THR CYS HIS          
SEQRES  21 D  275  VAL GLN HIS GLU GLY LEU PRO LYS PRO LEU THR LEU ARG          
SEQRES  22 D  275  TRP GLU                                                      
SEQRES   1 E  100  MET ILE GLN ARG THR PRO LYS ILE GLN VAL TYR SER ARG          
SEQRES   2 E  100  HIS PRO ALA GLU ASN GLY LYS SER ASN PHE LEU ASN CYS          
SEQRES   3 E  100  TYR VAL SER GLY PHE HIS PRO SER ASP ILE GLU VAL ASP          
SEQRES   4 E  100  LEU LEU LYS ASN GLY GLU ARG ILE GLU LYS VAL GLU HIS          
SEQRES   5 E  100  SER ASP LEU SER PHE SER LYS ASP TRP SER PHE TYR LEU          
SEQRES   6 E  100  LEU TYR TYR THR GLU PHE THR PRO THR GLU LYS ASP GLU          
SEQRES   7 E  100  TYR ALA CYS ARG VAL ASN HIS VAL THR LEU SER GLN PRO          
SEQRES   8 E  100  LYS ILE VAL LYS TRP ASP ARG ASP MET                          
SEQRES   1 F   10  MET LEU LEU SER VAL PRO LEU LEU LEU GLY                      
HELIX    1  H1 ALA A   49  GLU A   53  1                                   5    
HELIX    2  H2 PRO A   57  TYR A   84  1                                  28    
HELIX    3  H3 ALA A  140  ALA A  149  1                                  10    
HELIX    4  H4 VAL A  152  GLU A  161  1                                  10    
HELIX    5  H5 THR A  163  ASN A  174  1                                  12    
HELIX    6  H6 LYS A  176  LEU A  179  1                                   4    
HELIX    7  H7 ALA D   49  GLU D   53  1                                   5    
HELIX    8  H8 PRO D   57  TYR D   84  1                                  28    
HELIX    9  H9 ALA D  140  ALA D  149  1                                  10    
HELIX   10  HA VAL D  152  GLU D  161  1                                  10    
HELIX   11  HB THR D  163  ASN D  174  1                                  12    
HELIX   12  HC LYS D  176  LEU D  179  1                                   4    
SHEET    1  SA 8 GLU A  46  PRO A  47  0                                        
SHEET    2  SA 8 THR A  31  ASP A  37 -1  O  ARG A  35   N  GLU A  46           
SHEET    3  SA 8 ARG A  21  VAL A  28 -1  O  ALA A  24   N  PHE A  36           
SHEET    4  SA 8 HIS A   3  VAL A  12 -1  N  ARG A   6   O  TYR A  27           
SHEET    5  SA 8 THR A  94  VAL A 103 -1  O  VAL A 103   N  HIS A   3           
SHEET    6  SA 8 PHE A 109  TYR A 118 -1  O  ARG A 111   N  ASP A 102           
SHEET    7  SA 8 LYS A 121  LEU A 126 -1  N  LEU A 126   O  HIS A 114           
SHEET    8  SA 8 TRP A 133  ALA A 135 -1  N  THR A 134   O  ALA A 125           
SHEET    1 SB1 4 LYS A 186  SER A 195  0                                        
SHEET    2 SB1 4 GLU A 198  PHE A 208 -1  O  LEU A 206   N  LYS A 186           
SHEET    3 SB1 4 PHE A 241  PRO A 250 -1  N  LYS A 243   O  ALA A 205           
SHEET    4 SB1 4 GLU A 229  LEU A 230 -1  N  GLU A 229   O  ALA A 246           
SHEET    1 SB2 4 LYS A 186  SER A 195  0                                        
SHEET    2 SB2 4 GLU A 198  PHE A 208 -1  O  LEU A 206   N  LYS A 186           
SHEET    3 SB2 4 PHE A 241  PRO A 250 -1  N  LYS A 243   O  ALA A 205           
SHEET    4 SB2 4 ARG A 234  PRO A 235 -1  N  ARG A 234   O  GLN A 242           
SHEET    1  SC 4 GLU A 222  ASP A 223  0                                        
SHEET    2  SC 4 THR A 214  ARG A 219 -1  O  ARG A 219   N  GLU A 222           
SHEET    3  SC 4 TYR A 257  GLN A 262 -1  N  THR A 258   O  GLN A 218           
SHEET    4  SC 4 LEU A 270  ARG A 273 -1  O  LEU A 270   N  VAL A 261           
SHEET    1 SD1 4 LYS B   6  SER B  11  0                                        
SHEET    2 SD1 4 ASN B  21  PHE B  30 -1  O  SER B  28   N  LYS B   6           
SHEET    3 SD1 4 PHE B  62  PHE B  70 -1  N  PHE B  62   O  PHE B  30           
SHEET    4 SD1 4 GLU B  50  HIS B  51 -1  N  GLU B  50   O  TYR B  67           
SHEET    1 SD2 4 LYS B   6  SER B  11  0                                        
SHEET    2 SD2 4 ASN B  21  PHE B  30 -1  O  SER B  28   N  LYS B   6           
SHEET    3 SD2 4 PHE B  62  PHE B  70 -1  N  PHE B  62   O  PHE B  30           
SHEET    4 SD2 4 SER B  55  PHE B  56 -1  N  SER B  55   O  TYR B  63           
SHEET    1  SE 4 GLU B  44  ARG B  45  0                                        
SHEET    2  SE 4 GLU B  36  LYS B  41 -1  O  LYS B  41   N  GLU B  44           
SHEET    3  SE 4 TYR B  78  ASN B  83 -1  N  ALA B  79   O  LEU B  40           
SHEET    4  SE 4 LYS B  91  LYS B  94 -1  N  LYS B  91   O  VAL B  82           
SHEET    1  SF 8 GLU D  46  PRO D  47  0                                        
SHEET    2  SF 8 THR D  31  ASP D  37 -1  O  ARG D  35   N  GLU D  46           
SHEET    3  SF 8 ARG D  21  VAL D  28 -1  O  ALA D  24   N  PHE D  36           
SHEET    4  SF 8 HIS D   3  VAL D  12 -1  N  ARG D   6   O  TYR D  27           
SHEET    5  SF 8 THR D  94  VAL D 103 -1  O  VAL D 103   N  HIS D   3           
SHEET    6  SF 8 PHE D 109  TYR D 118 -1  O  ARG D 111   N  ASP D 102           
SHEET    7  SF 8 LYS D 121  LEU D 126 -1  N  LEU D 126   O  HIS D 114           
SHEET    8  SF 8 TRP D 133  ALA D 135 -1  N  THR D 134   O  ALA D 125           
SHEET    1 SG1 4 LYS D 186  SER D 195  0                                        
SHEET    2 SG1 4 GLU D 198  PHE D 208 -1  O  LEU D 206   N  LYS D 186           
SHEET    3 SG1 4 PHE D 241  PRO D 250 -1  N  LYS D 243   O  ALA D 205           
SHEET    4 SG1 4 GLU D 229  LEU D 230 -1  N  GLU D 229   O  ALA D 246           
SHEET    1 SG2 4 LYS D 186  SER D 195  0                                        
SHEET    2 SG2 4 GLU D 198  PHE D 208 -1  O  LEU D 206   N  LYS D 186           
SHEET    3 SG2 4 PHE D 241  PRO D 250 -1  N  LYS D 243   O  ALA D 205           
SHEET    4 SG2 4 ARG D 234  PRO D 235 -1  N  ARG D 234   O  GLN D 242           
SHEET    1  SH 4 GLU D 222  ASP D 223  0                                        
SHEET    2  SH 4 THR D 214  ARG D 219 -1  O  ARG D 219   N  GLU D 222           
SHEET    3  SH 4 TYR D 257  GLN D 262 -1  N  THR D 258   O  GLN D 218           
SHEET    4  SH 4 LEU D 270  ARG D 273 -1  O  LEU D 270   N  VAL D 261           
SHEET    1 SI1 4 LYS E   6  SER E  11  0                                        
SHEET    2 SI1 4 ASN E  21  PHE E  30 -1  O  SER E  28   N  LYS E   6           
SHEET    3 SI1 4 PHE E  62  PHE E  70 -1  N  PHE E  62   O  PHE E  30           
SHEET    4 SI1 4 GLU E  50  HIS E  51 -1  N  GLU E  50   O  TYR E  67           
SHEET    1 SI2 4 LYS E   6  SER E  11  0                                        
SHEET    2 SI2 4 ASN E  21  PHE E  30 -1  O  SER E  28   N  LYS E   6           
SHEET    3 SI2 4 PHE E  62  PHE E  70 -1  N  PHE E  62   O  PHE E  30           
SHEET    4 SI2 4 SER E  55  PHE E  56 -1  N  SER E  55   O  TYR E  63           
SHEET    1  SJ 4 GLU E  44  ARG E  45  0                                        
SHEET    2  SJ 4 GLU E  36  LYS E  41 -1  O  LYS E  41   N  GLU E  44           
SHEET    3  SJ 4 TYR E  78  ASN E  83 -1  N  ALA E  79   O  LEU E  40           
SHEET    4  SJ 4 LYS E  91  LYS E  94 -1  N  LYS E  91   O  VAL E  82           
SSBOND   1 CYS A  101    CYS A  164                          1555   1555  2.04  
SSBOND   2 CYS A  203    CYS A  259                          1555   1555  2.02  
SSBOND   3 CYS B   25    CYS B   80                          1555   1555  2.04  
SSBOND   4 CYS D  101    CYS D  164                          1555   1555  2.04  
SSBOND   5 CYS D  203    CYS D  259                          1555   1555  2.01  
SSBOND   6 CYS E   25    CYS E   80                          1555   1555  2.03  
CISPEP   1 TYR A  209    PRO A  210          0         0.65                     
CISPEP   2 HIS B   31    PRO B   32          0        -0.51                     
CISPEP   3 TYR D  209    PRO D  210          0         2.03                     
CISPEP   4 HIS E   31    PRO E   32          0        -0.18                     
CRYST1   50.410   62.909   74.810  81.99  76.43  78.06 P 1           2          
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      0.019837 -0.004195 -0.004408        0.00000                         
SCALE2      0.000000  0.016247 -0.001558        0.00000                         
SCALE3      0.000000  0.000000  0.013814        0.00000                         
MTRIX1   1 -0.924892  0.380207  0.004274       25.91708    1                    
MTRIX2   1  0.380210  0.924900 -0.000132      -47.34475    1                    
MTRIX3   1 -0.004004  0.001503 -0.999991       32.12666    1                    
MTRIX1   2 -0.906251  0.421830  0.027723       22.78743    1                    
MTRIX2   2  0.421773  0.906665 -0.008160      -47.91862    1                    
MTRIX3   2 -0.028578  0.004298 -0.999582       32.41289    1                    
MTRIX1   3 -0.912356  0.409396  0.000786       24.03463    1                    
MTRIX2   3  0.409388  0.912323  0.008246      -48.32787    1                    
MTRIX3   3  0.002658  0.007845 -0.999966       31.44072    1