HEADER    IMMUNE SYSTEM                           23-JAN-05   1YN6              
TITLE     CRYSTAL STRUCTURE OF A MOUSE MHC CLASS I PROTEIN, H2-DB, IN COMPLEX   
TITLE    2 WITH A PEPTIDE FROM THE INFLUENZA A ACID POLYMERASE                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: H-2 CLASS I HISTOCOMPATIBILITY ANTIGEN, D-B ALPHA CHAIN;   
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: H- 2DB;                                                     
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: BETA-2-MICROGLOBULIN;                                      
COMPND   8 CHAIN: B;                                                            
COMPND   9 ENGINEERED: YES;                                                     
COMPND  10 MOL_ID: 3;                                                           
COMPND  11 MOLECULE: 10-MER PEPTIDE FROM RNA-DIRECTED RNA POLYMERASE SUBUNIT P2;
COMPND  12 CHAIN: C;                                                            
COMPND  13 SYNONYM: POLYMERASE ACIDIC PROTEIN, PA;                              
COMPND  14 EC: 2.7.7.48;                                                        
COMPND  15 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE   3 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE   4 ORGANISM_TAXID: 10090;                                               
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: XLBLUE;                                    
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET30;                                    
SOURCE  10 MOL_ID: 2;                                                           
SOURCE  11 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE  12 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE  13 ORGANISM_TAXID: 10090;                                               
SOURCE  14 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  15 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  16 EXPRESSION_SYSTEM_STRAIN: XLBLUE;                                    
SOURCE  17 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  18 EXPRESSION_SYSTEM_PLASMID: PET30;                                    
SOURCE  19 MOL_ID: 3;                                                           
SOURCE  20 SYNTHETIC: YES;                                                      
SOURCE  21 OTHER_DETAILS: SYNTHETIC PEPTIDE WITH SAME SEQUENCE AS INFLUENZA A   
SOURCE  22 ACID POLYMERASE FRAGMENT, RESIDUES 224-233                           
KEYWDS    MHC CLASS 1, H2-DB, INFLUENZA A, PEPTIDE OF ACID POLYMERASE, IMMUNE   
KEYWDS   2 SYSTEM                                                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.J.TURNER,K.KEDZIERSKA,H.KOMODROMOU,N.L.LA GRUTA,M.A.DUNSTONE,       
AUTHOR   2 A.I.WEBB,R.WEBBY,H.WALDEN,W.XIE,J.MCCLUSKEY,A.W.PURCELL,J.ROSSJOHN,  
AUTHOR   3 P.C.DOHERTY                                                          
REVDAT   3   23-OCT-24 1YN6    1       SEQADV                                   
REVDAT   2   24-FEB-09 1YN6    1       VERSN                                    
REVDAT   1   28-JUN-05 1YN6    0                                                
JRNL        AUTH   S.J.TURNER,K.KEDZIERSKA,H.KOMODROMOU,N.L.LA GRUTA,           
JRNL        AUTH 2 M.A.DUNSTONE,A.I.WEBB,R.WEBBY,H.WALDEN,W.XIE,J.MCCLUSKEY,    
JRNL        AUTH 3 A.W.PURCELL,J.ROSSJOHN,P.C.DOHERTY                           
JRNL        TITL   LACK OF PROMINENT PEPTIDE-MAJOR HISTOCOMPATIBILITY COMPLEX   
JRNL        TITL 2 FEATURES LIMITS REPERTOIRE DIVERSITY IN VIRUS-SPECIFIC CD8+  
JRNL        TITL 3 T CELL POPULATIONS                                           
JRNL        REF    NAT.IMMUNOL.                  V.   6   382 2005              
JRNL        REFN                   ISSN 1529-2908                               
JRNL        PMID   15785764                                                     
JRNL        DOI    10.1038/NI1175                                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 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 : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 100.00                         
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             : 22257                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.254                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 957                             
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            : 3154                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 358                                     
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) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.382                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 25.14                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.789                           
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 1YN6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 25-JAN-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000031707.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 30-JAN-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU                             
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 28360                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 100.000                            
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 91.4                               
REMARK 200  DATA REDUNDANCY                : 5.700                              
REMARK 200  R MERGE                    (I) : 0.06000                            
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) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.20                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 43.9                               
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: AMORE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM CITRATE, AMMONIUM ACETATE, PEG    
REMARK 280  4000, PH 5.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K       
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+3/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+3/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z+1/2                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      136.75200            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       28.10800            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       28.10800            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      205.12800            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       28.10800            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       28.10800            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       68.37600            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       28.10800            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       28.10800            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000      205.12800            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       28.10800            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       28.10800            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       68.37600            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000      136.75200            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4340 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 19010 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -18.0 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 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 275  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 436  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 488  LIES ON A SPECIAL POSITION.                          
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLU A  41    CG   CD   OE1  OE2                                  
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   NE   ARG A   121     O    HOH A   402              2.14            
REMARK 500   NZ   LYS B     3     O    HOH B   168              2.17            
REMARK 500   O    HOH B   128     O    HOH B   181              2.18            
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   O    TRP A   107     O    HOH B   170     1655     1.90            
REMARK 500   O    THR A   225     O    HOH A   327     6455     2.15            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP A 106   N   -  CA  -  C   ANGL. DEV. = -22.1 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    ALA A  40      153.46    -49.08                                   
REMARK 500    ARG A 108      162.40    -46.43                                   
REMARK 500    LEU A 114      109.11   -163.44                                   
REMARK 500    LYS A 131      -36.35   -137.70                                   
REMARK 500    ARG A 194      -65.61   -129.93                                   
REMARK 500    PRO A 210     -177.09    -68.30                                   
REMARK 500    TRP B  60      -18.94     80.74                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1YN7   RELATED DB: PDB                                   
REMARK 900 COMPLEX WITH A MUTATED PEPTIDE (R7A)                                 
DBREF  1YN6 A    2   274  UNP    P01899   HA11_MOUSE      26    298             
DBREF  1YN6 B    1    99  UNP    P01887   B2MG_MOUSE      21    119             
DBREF  1YN6 C    1    10  UNP    P13175   RRP2_IAZI1     224    233             
SEQADV 1YN6 MET B    0  UNP  P01887              INITIATING METHIONINE          
SEQRES   1 A  273  PRO HIS SER MET ARG TYR PHE GLU THR ALA VAL SER ARG          
SEQRES   2 A  273  PRO GLY LEU GLU GLU PRO ARG TYR ILE SER VAL GLY TYR          
SEQRES   3 A  273  VAL ASP ASN LYS GLU PHE VAL ARG PHE ASP SER ASP ALA          
SEQRES   4 A  273  GLU ASN PRO ARG TYR GLU PRO ARG ALA PRO TRP MET GLU          
SEQRES   5 A  273  GLN GLU GLY PRO GLU TYR TRP GLU ARG GLU THR GLN LYS          
SEQRES   6 A  273  ALA LYS GLY GLN GLU GLN TRP PHE ARG VAL SER LEU ARG          
SEQRES   7 A  273  ASN LEU LEU GLY TYR TYR ASN GLN SER ALA GLY GLY SER          
SEQRES   8 A  273  HIS THR LEU GLN GLN MET SER GLY CYS ASP LEU GLY SER          
SEQRES   9 A  273  ASP TRP ARG LEU LEU ARG GLY TYR LEU GLN PHE ALA TYR          
SEQRES  10 A  273  GLU GLY ARG ASP TYR ILE ALA LEU ASN GLU ASP LEU LYS          
SEQRES  11 A  273  THR TRP THR ALA ALA ASP MET ALA ALA GLN ILE THR ARG          
SEQRES  12 A  273  ARG LYS TRP GLU GLN SER GLY ALA ALA GLU HIS TYR LYS          
SEQRES  13 A  273  ALA TYR LEU GLU GLY GLU CYS VAL GLU TRP LEU HIS ARG          
SEQRES  14 A  273  TYR LEU LYS ASN GLY ASN ALA THR LEU LEU ARG THR ASP          
SEQRES  15 A  273  SER PRO LYS ALA HIS VAL THR HIS HIS PRO ARG SER LYS          
SEQRES  16 A  273  GLY GLU VAL THR LEU ARG CYS TRP ALA LEU GLY PHE TYR          
SEQRES  17 A  273  PRO ALA ASP ILE THR LEU THR TRP GLN LEU ASN GLY GLU          
SEQRES  18 A  273  GLU LEU THR GLN ASP MET GLU LEU VAL GLU THR ARG PRO          
SEQRES  19 A  273  ALA GLY ASP GLY THR PHE GLN LYS TRP ALA SER VAL VAL          
SEQRES  20 A  273  VAL PRO LEU GLY LYS GLU GLN ASN TYR THR CYS ARG VAL          
SEQRES  21 A  273  TYR HIS GLU GLY LEU PRO GLU PRO LEU THR LEU ARG TRP          
SEQRES   1 B  100  MET ILE GLN LYS THR PRO GLN ILE GLN VAL TYR SER ARG          
SEQRES   2 B  100  HIS PRO PRO GLU ASN GLY LYS PRO ASN ILE LEU ASN CYS          
SEQRES   3 B  100  TYR VAL THR GLN PHE HIS PRO PRO HIS ILE GLU ILE GLN          
SEQRES   4 B  100  MET LEU LYS ASN GLY LYS LYS ILE PRO LYS VAL GLU MET          
SEQRES   5 B  100  SER ASP MET SER PHE SER LYS ASP TRP SER PHE TYR ILE          
SEQRES   6 B  100  LEU ALA HIS THR GLU PHE THR PRO THR GLU THR ASP THR          
SEQRES   7 B  100  TYR ALA CYS ARG VAL LYS HIS ASP SER MET ALA GLU PRO          
SEQRES   8 B  100  LYS THR VAL TYR TRP ASP ARG ASP MET                          
SEQRES   1 C   10  SER SER LEU GLU ASN PHE ARG ALA TYR VAL                      
FORMUL   4  HOH   *358(H2 O)                                                    
HELIX    1   1 ALA A   49  GLU A   55  5                                   7    
HELIX    2   2 GLY A   56  TYR A   85  1                                  30    
HELIX    3   3 ASP A  137  GLY A  151  1                                  15    
HELIX    4   4 ALA A  152  GLY A  162  1                                  11    
HELIX    5   5 GLY A  162  GLY A  175  1                                  14    
HELIX    6   6 GLY A  175  LEU A  180  1                                   6    
HELIX    7   7 THR A  225  MET A  228  5                                   4    
HELIX    8   8 LYS A  253  GLN A  255  5                                   3    
SHEET    1   A 8 GLU A  46  PRO A  47  0                                        
SHEET    2   A 8 LYS 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  SER A  24   O  PHE A  36           
SHEET    4   A 8 HIS A   3  VAL A  12 -1  N  PHE A   8   O  VAL A  25           
SHEET    5   A 8 THR A  94  LEU A 103 -1  O  GLN A  97   N  GLU A   9           
SHEET    6   A 8 LEU A 109  TYR A 118 -1  O  LEU A 110   N  ASP A 102           
SHEET    7   A 8 ARG A 121  LEU A 126 -1  O  LEU A 126   N  LEU A 114           
SHEET    8   A 8 TRP A 133  ALA A 135 -1  O  THR A 134   N  ALA A 125           
SHEET    1   B 4 LYS A 186  SER A 195  0                                        
SHEET    2   B 4 GLU A 198  PHE A 208 -1  O  THR A 200   N  HIS A 192           
SHEET    3   B 4 PHE A 241  PRO A 250 -1  O  VAL A 249   N  VAL A 199           
SHEET    4   B 4 GLU A 229  LEU A 230 -1  N  GLU A 229   O  SER A 246           
SHEET    1   C 4 LYS A 186  SER A 195  0                                        
SHEET    2   C 4 GLU A 198  PHE A 208 -1  O  THR A 200   N  HIS A 192           
SHEET    3   C 4 PHE A 241  PRO A 250 -1  O  VAL A 249   N  VAL A 199           
SHEET    4   C 4 ARG A 234  PRO A 235 -1  N  ARG A 234   O  GLN A 242           
SHEET    1   D 4 GLU A 222  GLU A 223  0                                        
SHEET    2   D 4 THR A 214  LEU A 219 -1  N  LEU A 219   O  GLU A 222           
SHEET    3   D 4 TYR A 257  TYR A 262 -1  O  TYR A 262   N  THR A 214           
SHEET    4   D 4 LEU A 270  LEU A 272 -1  O  LEU A 272   N  CYS A 259           
SHEET    1   E 4 GLN 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  THR B  68   N  LEU B  23           
SHEET    4   E 4 GLU B  50  MET B  51 -1  N  GLU B  50   O  HIS B  67           
SHEET    1   F 4 GLN 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  THR B  68   N  LEU B  23           
SHEET    4   F 4 SER B  55  PHE B  56 -1  N  SER B  55   O  TYR B  63           
SHEET    1   G 4 LYS B  44  LYS B  45  0                                        
SHEET    2   G 4 GLU B  36  LYS B  41 -1  N  LYS B  41   O  LYS B  44           
SHEET    3   G 4 TYR B  78  LYS B  83 -1  O  ALA B  79   N  LEU B  40           
SHEET    4   G 4 LYS B  91  TYR B  94 -1  O  LYS B  91   N  VAL B  82           
SSBOND   1 CYS A  101    CYS A  164                          1555   1555  2.69  
SSBOND   2 CYS A  203    CYS A  259                          1555   1555  2.02  
SSBOND   3 CYS B   25    CYS B   80                          1555   1555  2.03  
CISPEP   1 TYR A  209    PRO A  210          0         0.46                     
CISPEP   2 HIS B   31    PRO B   32          0         0.00                     
CRYST1   56.216   56.216  273.504  90.00  90.00  90.00 P 43 21 2     8          
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      0.017789  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.017789  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.003656        0.00000