PDB Short entry for 1YDP
HEADER    IMMUNE SYSTEM                           25-DEC-04   1YDP              
TITLE     1.9A CRYSTAL STRUCTURE OF HLA-G                                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: MHC CLASS I ANTIGEN;                                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: HLA-G HEAVY CHAIN;                                         
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES;                                                       
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: BETA-2-MICROGLOBULIN;                                      
COMPND   9 CHAIN: B;                                                            
COMPND  10 SYNONYM: HLA-G, HDCMA22P;                                            
COMPND  11 ENGINEERED: YES;                                                     
COMPND  12 MOL_ID: 3;                                                           
COMPND  13 MOLECULE: HISTONE 2A PEPTIDE;                                        
COMPND  14 CHAIN: P;                                                            
COMPND  15 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: 511693;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE   8 MOL_ID: 2;                                                           
SOURCE   9 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  10 ORGANISM_COMMON: HUMAN;                                              
SOURCE  11 ORGANISM_TAXID: 9606;                                                
SOURCE  12 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  13 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE  14 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE  15 MOL_ID: 3;                                                           
SOURCE  16 SYNTHETIC: YES;                                                      
SOURCE  17 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE  18 ORGANISM_TAXID: 32630                                                
KEYWDS    IMMUNE SYSTEM                                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.S.CLEMENTS,L.KJER-NIELSEN,L.KOSTENKO,H.L.HOARE,M.A.DUNSTONE,        
AUTHOR   2 E.MOSES,K.FREED,A.G.BROOKS,J.ROSSJOHN,J.MCCLUSKEY                    
REVDAT   4   10-NOV-21 1YDP    1       REMARK SEQADV LINK                       
REVDAT   3   25-JUL-18 1YDP    1       COMPND SOURCE                            
REVDAT   2   24-FEB-09 1YDP    1       VERSN                                    
REVDAT   1   08-MAR-05 1YDP    0                                                
JRNL        AUTH   C.S.CLEMENTS,L.KJER-NIELSEN,L.KOSTENKO,H.L.HOARE,            
JRNL        AUTH 2 M.A.DUNSTONE,E.MOSES,K.FREED,A.G.BROOKS,J.ROSSJOHN,          
JRNL        AUTH 3 J.MCCLUSKEY                                                  
JRNL        TITL   CRYSTAL STRUCTURE OF HLA-G: A NONCLASSICAL MHC CLASS I       
JRNL        TITL 2 MOLECULE EXPRESSED AT THE FETAL-MATERNAL INTERFACE           
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 102  3360 2005              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   15718280                                                     
JRNL        DOI    10.1073/PNAS.0409676102                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : NULL                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
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             : 40820                          
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) : 0.235                           
REMARK   3   FREE R VALUE                     : 0.264                           
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            : 3160                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 3                                       
REMARK   3   SOLVENT ATOMS            : 427                                     
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) : NULL                            
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : 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 1YDP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 06-JAN-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000031411.                                   
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) : M                                  
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   : 130133                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
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: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 57.62                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.90                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+1/3                                           
REMARK 290       6555   -X,-X+Y,-Z+2/3                                          
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      101.14667            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       50.57333            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       50.57333            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000      101.14667            
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 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: 4790 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 19070 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -33.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, P                               
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3030 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 20820 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -40.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, P                                  
REMARK 350   BIOMT1   2 -0.500000 -0.866025  0.000000       38.57500            
REMARK 350   BIOMT2   2 -0.866025  0.500000  0.000000       66.81386            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      101.14667            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 538  LIES ON A SPECIAL POSITION.                          
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    VAL B     9     N    TYR B    10              1.59            
REMARK 500   CD   ARG A   108     O    HOH A   385              1.93            
REMARK 500   OD2  ASP A   102     NE   ARG A   111              1.98            
REMARK 500   NE   ARG A   111     O    HOH A   462              2.11            
REMARK 500   NH1  ARG A     6     CE1  TYR A   113              2.17            
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 A   195     O    HOH A   568     5565     2.10            
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    LYS A 176   C     GLU A 177   N      -0.200                       
REMARK 500    ALA A 182   C     ASP A 183   N       0.284                       
REMARK 500    THR A 190   C     HIS A 191   N      -0.204                       
REMARK 500    TRP A 217   C     GLN A 218   N       0.223                       
REMARK 500    ARG A 219   CA    ARG A 219   CB     -0.151                       
REMARK 500    LEU A 266   CB    LEU A 266   CG      0.305                       
REMARK 500    PRO A 267   CB    PRO A 267   CG      0.409                       
REMARK 500    PRO A 267   CD    PRO A 267   N       0.156                       
REMARK 500    GLU A 268   CB    GLU A 268   CG     -0.307                       
REMARK 500    GLU A 268   C     PRO A 269   N      -0.133                       
REMARK 500    VAL B   9   C     TYR B  10   N      -0.368                       
REMARK 500    ARG B  12   CD    ARG B  12   NE     -0.286                       
REMARK 500    ALA B  15   C     GLU B  16   N       0.313                       
REMARK 500    GLU B  16   C     ASN B  17   N      -0.260                       
REMARK 500    ASN B  17   CB    ASN B  17   CG     -0.184                       
REMARK 500    VAL B  82   C     ASN B  83   N       0.256                       
REMARK 500    ASN B  83   C     HIS B  84   N      -0.221                       
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    ARG A   6   CB  -  CA  -  C   ANGL. DEV. = -13.1 DEGREES          
REMARK 500    GLN A  79   C   -  N   -  CA  ANGL. DEV. = -17.1 DEGREES          
REMARK 500    TYR A 113   CB  -  CA  -  C   ANGL. DEV. = -14.8 DEGREES          
REMARK 500    TYR A 113   CB  -  CG  -  CD2 ANGL. DEV. =  -4.1 DEGREES          
REMARK 500    LYS A 176   CA  -  C   -  N   ANGL. DEV. =  16.4 DEGREES          
REMARK 500    LYS A 176   O   -  C   -  N   ANGL. DEV. = -16.4 DEGREES          
REMARK 500    ASP A 183   C   -  N   -  CA  ANGL. DEV. = -17.1 DEGREES          
REMARK 500    THR A 190   CA  -  C   -  N   ANGL. DEV. =  13.8 DEGREES          
REMARK 500    THR A 190   O   -  C   -  N   ANGL. DEV. = -13.6 DEGREES          
REMARK 500    PHE A 195   C   -  N   -  CA  ANGL. DEV. = -22.1 DEGREES          
REMARK 500    PHE A 195   CA  -  CB  -  CG  ANGL. DEV. =  16.5 DEGREES          
REMARK 500    PHE A 195   CB  -  CG  -  CD2 ANGL. DEV. =  10.1 DEGREES          
REMARK 500    PHE A 195   CB  -  CG  -  CD1 ANGL. DEV. = -10.6 DEGREES          
REMARK 500    ARG A 219   CB  -  CA  -  C   ANGL. DEV. = -15.7 DEGREES          
REMARK 500    ARG A 219   CD  -  NE  -  CZ  ANGL. DEV. =  40.1 DEGREES          
REMARK 500    ASP A 220   CA  -  CB  -  CG  ANGL. DEV. =  20.1 DEGREES          
REMARK 500    ASP A 220   CB  -  CG  -  OD1 ANGL. DEV. = -18.8 DEGREES          
REMARK 500    ASP A 220   CB  -  CG  -  OD2 ANGL. DEV. =  19.2 DEGREES          
REMARK 500    LEU A 266   CB  -  CG  -  CD1 ANGL. DEV. =  18.5 DEGREES          
REMARK 500    PRO A 267   N   -  CA  -  CB  ANGL. DEV. =   7.6 DEGREES          
REMARK 500    PRO A 267   CA  -  CB  -  CG  ANGL. DEV. = -11.4 DEGREES          
REMARK 500    GLU A 268   CA  -  CB  -  CG  ANGL. DEV. =  23.1 DEGREES          
REMARK 500    VAL B   9   CA  -  C   -  N   ANGL. DEV. =  29.9 DEGREES          
REMARK 500    VAL B   9   O   -  C   -  N   ANGL. DEV. = -30.8 DEGREES          
REMARK 500    GLU B  16   C   -  N   -  CA  ANGL. DEV. = -18.7 DEGREES          
REMARK 500    ASN B  83   C   -  N   -  CA  ANGL. DEV. = -17.1 DEGREES          
REMARK 500    ASN B  83   CA  -  C   -  N   ANGL. DEV. =  13.7 DEGREES          
REMARK 500    ASN B  83   O   -  C   -  N   ANGL. DEV. = -12.1 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    ARG A  14       70.58   -153.50                                   
REMARK 500    ASP A  29     -129.17     59.02                                   
REMARK 500    TRP A  51        1.09    -66.95                                   
REMARK 500    GLU A 114      118.18    163.85                                   
REMARK 500    TYR A 123      -62.54   -120.46                                   
REMARK 500    GLN A 180       44.11    -98.62                                   
REMARK 500    PHE A 195      -88.34    -54.14                                   
REMARK 500    THR A 225      -48.09    -15.82                                   
REMARK 500    LYS A 243      143.96   -173.04                                   
REMARK 500    TRP B  60      -13.73     82.19                                   
REMARK 500    THR B  68      145.50   -177.61                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 VAL A  194     PHE A  195                 -147.80                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG A 219         0.08    SIDE CHAIN                              
REMARK 500    ARG B  12         0.22    SIDE CHAIN                              
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    ASP A 183        -13.80                                           
REMARK 500    GLU A 268         16.04                                           
REMARK 500    VAL B   9         19.61                                           
REMARK 500    ALA B  15         10.19                                           
REMARK 500    GLU B  16        -19.89                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CO B1001  CO                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 169   ND1                                                    
REMARK 620 2 ASP A 196   OD2  99.8                                              
REMARK 620 3 MET B   1A  N   174.6  82.8                                        
REMARK 620 4 MET B   1A  O   100.6 148.2  79.1                                  
REMARK 620 5  CL B1002  CL    91.2 112.9  83.4  90.9                            
REMARK 620 6  CL B1003  CL    96.6  63.9  88.8  89.6 171.9                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO B 1001                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 1002                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 1003                 
DBREF  1YDP A    2   276  UNP    P17693   HLAG_HUMAN      26    300             
DBREF  1YDP B    1B   99  UNP    P61769   B2MG_HUMAN      21    119             
DBREF  1YDP P    1     9  PDB    1YDP     1YDP             1      9             
SEQADV 1YDP SER A   42  UNP  P17693    CYS    66 ENGINEERED MUTATION            
SEQADV 1YDP MET B    1A UNP  P61769              INITIATING METHIONINE          
SEQRES   1 A  275  SER HIS SER MET ARG TYR PHE SER ALA ALA VAL SER ARG          
SEQRES   2 A  275  PRO GLY ARG GLY GLU PRO ARG PHE ILE ALA MET GLY TYR          
SEQRES   3 A  275  VAL ASP ASP THR GLN PHE VAL ARG PHE ASP SER ASP SER          
SEQRES   4 A  275  ALA SER PRO ARG MET GLU PRO ARG ALA PRO TRP VAL GLU          
SEQRES   5 A  275  GLN GLU GLY PRO GLU TYR TRP GLU GLU GLU THR ARG ASN          
SEQRES   6 A  275  THR LYS ALA HIS ALA GLN THR ASP ARG MET ASN LEU GLN          
SEQRES   7 A  275  THR LEU ARG GLY TYR TYR ASN GLN SER GLU ALA SER SER          
SEQRES   8 A  275  HIS THR LEU GLN TRP MET ILE GLY CYS ASP LEU GLY SER          
SEQRES   9 A  275  ASP GLY ARG LEU ILE ARG GLY TYR GLU ARG TYR ALA TYR          
SEQRES  10 A  275  ASP GLY LYS ASP TYR LEU ALA LEU ASN GLU ASP LEU ARG          
SEQRES  11 A  275  SER TRP THR ALA ALA ASP THR ALA ALA GLN ILE SER LYS          
SEQRES  12 A  275  ARG LYS CYS GLU ALA ALA ASN VAL ALA GLU GLN ARG ARG          
SEQRES  13 A  275  ALA TYR LEU GLU GLY THR CYS VAL GLU TRP LEU HIS ARG          
SEQRES  14 A  275  TYR LEU GLU ASN GLY LYS GLU MET LEU GLN ARG ALA ASP          
SEQRES  15 A  275  PRO PRO LYS THR HIS VAL THR HIS HIS PRO VAL PHE ASP          
SEQRES  16 A  275  TYR GLU ALA THR LEU ARG CYS TRP ALA LEU GLY PHE TYR          
SEQRES  17 A  275  PRO ALA GLU ILE ILE LEU THR TRP GLN ARG ASP GLY GLU          
SEQRES  18 A  275  ASP GLN THR GLN ASP VAL GLU LEU VAL GLU THR ARG PRO          
SEQRES  19 A  275  ALA GLY ASP GLY THR PHE GLN LYS TRP ALA ALA VAL VAL          
SEQRES  20 A  275  VAL PRO SER GLY GLU GLU GLN ARG TYR THR CYS HIS VAL          
SEQRES  21 A  275  GLN HIS GLU GLY LEU PRO GLU PRO LEU MET LEU ARG TRP          
SEQRES  22 A  275  LYS GLN                                                      
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 P    9  ARG ILE ILE PRO ARG HIS LEU GLN LEU                          
HET     CO  B1001       1                                                       
HET     CL  B1002       1                                                       
HET     CL  B1003       1                                                       
HETNAM      CO COBALT (II) ION                                                  
HETNAM      CL CHLORIDE ION                                                     
FORMUL   4   CO    CO 2+                                                        
FORMUL   5   CL    2(CL 1-)                                                     
FORMUL   7  HOH   *427(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  ASN A  151  1                                  15    
HELIX    4   4 VAL A  152  GLY A  162  1                                  11    
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 GLN A  224  VAL A  228  5                                   5    
HELIX    8   8 GLU A  253  GLN A  255  5                                   3    
SHEET    1   A 8 GLU A  46  PRO A  47  0                                        
SHEET    2   A 8 THR A  31  ASP A  37 -1  N  ARG A  35   O  GLU A  46           
SHEET    3   A 8 ARG A  21  VAL A  28 -1  N  ALA A  24   O  PHE A  36           
SHEET    4   A 8 HIS A   3  VAL A  12 -1  N  ARG A   6   O  TYR A  27           
SHEET    5   A 8 THR A  94  LEU A 103 -1  O  LEU A 103   N  HIS A   3           
SHEET    6   A 8 LEU A 109  TYR A 118 -1  O  ALA A 117   N  GLN A  96           
SHEET    7   A 8 LYS A 121  LEU A 126 -1  O  LEU A 124   N  TYR A 116           
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  HIS A 192  0                                        
SHEET    2   B 4 GLU A 198  PHE A 208 -1  O  LEU A 206   N  LYS A 186           
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  HIS A 192  0                                        
SHEET    2   C 4 GLU A 198  PHE A 208 -1  O  LEU A 206   N  LYS A 186           
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 3 ILE A 214  ARG A 219  0                                        
SHEET    2   D 3 TYR A 257  GLN A 262 -1  O  THR A 258   N  GLN A 218           
SHEET    3   D 3 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  2.05  
SSBOND   2 CYS A  203    CYS A  259                          1555   1555  2.03  
SSBOND   3 CYS B   25    CYS B   80                          1555   1555  2.03  
LINK         ND1 HIS A 169                CO    CO B1001     6665   1555  2.23  
LINK         OD2 ASP A 196                CO    CO B1001     3565   1555  2.70  
LINK         N   MET B   1A               CO    CO B1001     1555   1555  2.18  
LINK         O   MET B   1A               CO    CO B1001     1555   1555  2.14  
LINK        CO    CO B1001                CL    CL B1002     1555   1555  2.25  
LINK        CO    CO B1001                CL    CL B1003     1555   1555  2.21  
CISPEP   1 TYR A  209    PRO A  210          0        -0.27                     
CISPEP   2 HIS B   31    PRO B   32          0        -0.15                     
SITE     1 AC1  5 HIS A 169  ASP A 196  MET B   1A  CL B1002                    
SITE     2 AC1  5  CL B1003                                                     
SITE     1 AC2  5 HIS A 169  MET B   1A GLN B   2   CO B1001                    
SITE     2 AC2  5 HOH B1060                                                     
SITE     1 AC3  6 HIS A 169  LEU A 172  ASP A 196  HOH A 552                    
SITE     2 AC3  6 MET B   1A  CO B1001                                          
CRYST1   77.150   77.150  151.720  90.00  90.00 120.00 P 32 2 1      6          
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      0.012962  0.007483 -0.000001        0.00000                         
SCALE2      0.000000  0.014967 -0.000001        0.00000                         
SCALE3      0.000000  0.000000  0.006591        0.00000