PDB Short entry for 2PXY
HEADER    IMMUNE SYSTEM                           14-MAY-07   2PXY              
TITLE     CRYSTAL STRUCTURES OF IMMUNE RECEPTOR COMPLEXES                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: T CELL RECEPTOR ALPHA CHAIN;                               
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: T CELL RECEPTOR BETA CHAIN;                                
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MUTATION: YES;                                                       
COMPND  10 MOL_ID: 3;                                                           
COMPND  11 MOLECULE: H-2 CLASS II HISTOCOMPATIBILITY ANTIGEN, A-U               
COMPND  12 ALPHA CHAIN;                                                         
COMPND  13 CHAIN: C;                                                            
COMPND  14 FRAGMENT: EXTRACELLULAR ALPHA-1, EXTRACELLULAR ALPHA-2;              
COMPND  15 ENGINEERED: YES;                                                     
COMPND  16 MOL_ID: 4;                                                           
COMPND  17 MOLECULE: H-2 CLASS II HISTOCOMPATIBILITY ANTIGEN, A-U               
COMPND  18 BETA CHAIN;                                                          
COMPND  19 CHAIN: D;                                                            
COMPND  20 FRAGMENT: EXTRACELLULAR BETA-1, EXTRACELLULAR BETA-2;                
COMPND  21 ENGINEERED: YES;                                                     
COMPND  22 MOL_ID: 5;                                                           
COMPND  23 MOLECULE: MYELIN BASIC PROTEIN (MBP)-PEPTIDE;                        
COMPND  24 CHAIN: P;                                                            
COMPND  25 ENGINEERED: YES;                                                     
COMPND  26 MUTATION: 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_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PAK400;                                   
SOURCE   9 MOL_ID: 2;                                                           
SOURCE  10 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE  11 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE  12 ORGANISM_TAXID: 10090;                                               
SOURCE  13 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  14 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  15 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  16 EXPRESSION_SYSTEM_PLASMID: PAK400;                                   
SOURCE  17 MOL_ID: 3;                                                           
SOURCE  18 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE  19 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE  20 ORGANISM_TAXID: 10090;                                               
SOURCE  21 EXPRESSION_SYSTEM: DROSOPHILA MELANOGASTER;                          
SOURCE  22 EXPRESSION_SYSTEM_COMMON: FRUIT FLY;                                 
SOURCE  23 EXPRESSION_SYSTEM_TAXID: 7227;                                       
SOURCE  24 MOL_ID: 4;                                                           
SOURCE  25 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE  26 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE  27 ORGANISM_TAXID: 10090;                                               
SOURCE  28 EXPRESSION_SYSTEM: DROSOPHILA MELANOGASTER;                          
SOURCE  29 EXPRESSION_SYSTEM_COMMON: FRUIT FLY;                                 
SOURCE  30 EXPRESSION_SYSTEM_TAXID: 7227;                                       
SOURCE  31 MOL_ID: 5;                                                           
SOURCE  32 SYNTHETIC: YES;                                                      
SOURCE  33 OTHER_DETAILS: SYNTHETIC CONSTRUCT. THE SEQUENCE CAN BE              
SOURCE  34 NATURALLY FOUND IN MUS MUSCULUS (MOUSE)                              
KEYWDS    COMPLEX, IMMUNE SYSTEM                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.FENG,C.J.BOND,L.K.ELY,K.C.GARCIA                                    
REVDAT   2   24-FEB-09 2PXY    1       VERSN                                    
REVDAT   1   09-OCT-07 2PXY    0                                                
JRNL        AUTH   D.FENG,C.J.BOND,L.K.ELY,J.MAYNARD,K.C.GARCIA                 
JRNL        TITL   STRUCTURAL EVIDENCE FOR A GERMLINE-ENCODED T CELL            
JRNL        TITL 2 RECEPTOR-MAJOR HISTOCOMPATIBILITY COMPLEX                    
JRNL        TITL 3 INTERACTION 'CODON'.                                         
JRNL        REF    NAT.IMMUNOL.                  V.   8   975 2007              
JRNL        REFN                   ISSN 1529-2908                               
JRNL        PMID   17694060                                                     
JRNL        DOI    10.1038/NI1502                                               
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.23 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
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) : 2.23                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 47.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : -1.000                         
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 42263                          
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) : 0.218                           
REMARK   3   FREE R VALUE                     : 0.253                           
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            : 4883                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 329                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 37.20                          
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 2PXY COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-MAY-07.                  
REMARK 100 THE RCSB ID CODE IS RCSB042905.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-FEB-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL11-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9785                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 42263                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 47.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : 4.300                              
REMARK 200  R MERGE                    (I) : 0.10300                            
REMARK 200  R SYM                      (I) : 0.10300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 23.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.29                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.45800                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.500                              
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   (%): 59.12                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.01                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2M POTASSIUM SODIUM TARTRATE           
REMARK 280  TETRAHYDRATE, 0.1M SUCCINIC ACID (PH7.0), 16% POLYETHYLENE          
REMARK 280  GLYCOL 3350, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 295K        
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 2 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,X,Z+1/4                                              
REMARK 290       4555   Y,-X,Z+3/4                                              
REMARK 290       5555   -X,Y,-Z                                                 
REMARK 290       6555   X,-Y,-Z+1/2                                             
REMARK 290       7555   Y,X,-Z+3/4                                              
REMARK 290       8555   -Y,-X,-Z+1/4                                            
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       87.78050            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       43.89025            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000      131.67075            
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        0.00000            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       87.78050            
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      131.67075            
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       43.89025            
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: PENTAMERIC                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D, 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 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 C 211  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     HIS P    -4                                                      
REMARK 465     SER P    -3                                                      
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    ASN D  33   N   -  CA  -  C   ANGL. DEV. = -21.7 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    THR A   6      134.38    -32.09                                   
REMARK 500    LEU A  46      -63.70   -108.81                                   
REMARK 500    LYS A  53       -6.79     75.79                                   
REMARK 500    SER A  58      127.65   -179.97                                   
REMARK 500    PHE A  73       59.67   -151.34                                   
REMARK 500    ALA A  86     -172.66    179.36                                   
REMARK 500    SER B  88     -170.01    179.96                                   
REMARK 500    GLU D   4       21.19    -75.34                                   
REMARK 500    ASN D  33     -143.25     59.21                                   
REMARK 500    VAL D  78      -60.59   -121.99                                   
REMARK 500    THR D  89      -83.20   -128.11                                   
REMARK 500    PRO D 124     -173.69    -69.25                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1K2D   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE AUTOIMMUNE MHC CLASS II I-AU                
REMARK 900 COMPLEXED WITH MYELIN BASIC PROTEIN 1-11 AT 2.2A                     
DBREF  2PXY A    1    93  UNP    Q5R1F5   Q5R1F5_MOUSE    21    112             
DBREF  2PXY B    3   117  UNP    A2NTY6   A2NTY6_MOUSE    32    144             
DBREF  2PXY C    4   180  UNP    P14438   HA2U_MOUSE       1    178             
DBREF  2PXY D    2   191  UNP    P06344   HB2U_MOUSE      29    217             
DBREF  2PXY P   -4     8  PDB    2PXY     2PXY            -4      8             
SEQADV 2PXY ASP C   -1  UNP  P14438              EXPRESSION TAG                 
SEQADV 2PXY ASP C    0  UNP  P14438              EXPRESSION TAG                 
SEQADV 2PXY ILE C    1  UNP  P14438              EXPRESSION TAG                 
SEQADV 2PXY GLU C    2  UNP  P14438              EXPRESSION TAG                 
SEQADV 2PXY ALA C    3  UNP  P14438              EXPRESSION TAG                 
SEQRES   1 A  114  SER ALA ASP SER VAL THR GLN THR GLY GLY GLN VAL ALA          
SEQRES   2 A  114  LEU SER GLU GLU ASP PHE LEU THR ILE HIS CYS ASN TYR          
SEQRES   3 A  114  SER ALA SER GLY TYR PRO ALA LEU PHE TRP TYR VAL GLN          
SEQRES   4 A  114  TYR PRO GLY GLU GLY PRO GLN PHE LEU PHE ARG ALA SER          
SEQRES   5 A  114  ARG ASP LYS GLU LYS GLY SER SER ARG GLY PHE GLU ALA          
SEQRES   6 A  114  THR TYR ASN LYS GLU ALA THR SER PHE HIS LEU GLN LYS          
SEQRES   7 A  114  ALA SER VAL GLN GLU SER ASP SER ALA VAL TYR TYR CYS          
SEQRES   8 A  114  ALA LEU SER GLU ASN TYR GLY ASN GLU LYS ILE THR PHE          
SEQRES   9 A  114  GLY ALA GLY THR LYS LEU GLN VAL VAL PRO                      
SEQRES   1 B  111  ALA VAL THR GLN SER PRO ARG ASN LYS VAL ALA VAL THR          
SEQRES   2 B  111  GLY GLU LYS VAL THR LEU SER CYS ASN GLN THR ASN ASN          
SEQRES   3 B  111  HIS ASN ASN MET TYR TRP TYR ARG GLN ASP THR GLY HIS          
SEQRES   4 B  111  GLY LEU ARG LEU ILE TYR TYR SER TYR GLY ALA GLY SER          
SEQRES   5 B  111  THR GLU LYS GLY ASP ILE PRO ASP GLY TYR LYS ALA SER          
SEQRES   6 B  111  ARG PRO SER GLN GLU ASN PHE SER LEU THR LEU GLU SER          
SEQRES   7 B  111  ALA THR PRO SER GLN THR SER VAL TYR PHE CYS ALA SER          
SEQRES   8 B  111  GLY ASP ALA SER GLY ALA GLU THR LEU TYR PHE GLY PRO          
SEQRES   9 B  111  GLY THR ARG LEU THR VAL LEU                                  
SEQRES   1 C  183  ASP ASP ILE GLU ALA ASP HIS VAL GLY SER TYR GLY ILE          
SEQRES   2 C  183  VAL VAL TYR GLN SER PRO GLY ASP ILE GLY GLN TYR THR          
SEQRES   3 C  183  PHE GLU PHE ASP GLY ASP GLU LEU PHE TYR VAL ASP LEU          
SEQRES   4 C  183  ASP LYS LYS GLU THR ILE TRP MET LEU PRO GLU PHE ALA          
SEQRES   5 C  183  GLN LEU ARG SER PHE ASP PRO GLN GLY GLY LEU GLN ASN          
SEQRES   6 C  183  ILE ALA THR GLY LYS HIS ASN LEU GLY VAL LEU THR LYS          
SEQRES   7 C  183  ARG SER ASN SER THR PRO ALA THR ASN GLU ALA PRO GLN          
SEQRES   8 C  183  ALA THR VAL PHE PRO LYS SER PRO VAL LEU LEU GLY GLN          
SEQRES   9 C  183  PRO ASN THR LEU ILE CYS PHE VAL ASP ASN ILE PHE PRO          
SEQRES  10 C  183  PRO VAL ILE ASN ILE THR TRP LEU ARG ASN SER LYS SER          
SEQRES  11 C  183  VAL ALA ASP GLY VAL TYR GLU THR SER PHE PHE VAL ASN          
SEQRES  12 C  183  ARG ASP TYR SER PHE HIS LYS LEU SER TYR LEU THR PHE          
SEQRES  13 C  183  ILE PRO SER ASP ASP ASP ILE TYR ASP CYS LYS VAL GLU          
SEQRES  14 C  183  HIS TRP GLY LEU GLU GLU PRO VAL LEU LYS HIS TRP GLU          
SEQRES  15 C  183  PRO                                                          
SEQRES   1 D  189  ASP SER GLU ARG HIS PHE VAL VAL GLN PHE GLN PRO PHE          
SEQRES   2 D  189  CYS TYR PHE THR ASN GLY THR GLN ARG ILE ARG TYR VAL          
SEQRES   3 D  189  THR ARG TYR ILE TYR ASN ARG GLU GLU TYR LEU ARG PHE          
SEQRES   4 D  189  ASP SER ASP VAL GLY GLU TYR ARG ALA VAL THR GLU LEU          
SEQRES   5 D  189  GLY ARG PRO ASP ALA GLU TYR TYR ASN LYS GLN TYR LEU          
SEQRES   6 D  189  GLU ARG THR ARG ALA GLU LEU ASP THR VAL CYS ARG TYR          
SEQRES   7 D  189  ASN TYR GLU GLU THR GLU VAL PRO THR SER LEU ARG ARG          
SEQRES   8 D  189  LEU GLU GLN PRO ASN VAL VAL ILE SER LEU SER ARG THR          
SEQRES   9 D  189  GLU ALA LEU ASN HIS HIS ASN THR LEU VAL CYS SER VAL          
SEQRES  10 D  189  THR ASP PHE TYR PRO ALA LYS ILE LYS VAL ARG TRP PHE          
SEQRES  11 D  189  ARG ASN GLY GLN GLU GLU THR VAL GLY VAL SER SER THR          
SEQRES  12 D  189  GLN LEU ILE ARG ASN GLY ASP TRP THR PHE GLN VAL LEU          
SEQRES  13 D  189  VAL MET LEU GLU MET THR PRO ARG ARG GLY GLU VAL TYR          
SEQRES  14 D  189  THR CYS HIS VAL GLU HIS PRO SER LEU LYS SER PRO ILE          
SEQRES  15 D  189  THR VAL GLU TRP ARG ALA GLN                                  
SEQRES   1 P   13  HIS SER ARG GLY GLY ALA SER GLN TYR ARG PRO SER GLN          
FORMUL   6  HOH   *329(H2 O)                                                    
HELIX    1   1 GLN A   81  SER A   85  5                                   5    
HELIX    2   2 THR B   83  THR B   87  5                                   5    
HELIX    3   3 LEU C   45  GLN C   50  1                                   6    
HELIX    4   4 ASP C   55  SER C   77  1                                  23    
HELIX    5   5 THR D   51  LEU D   53  5                                   3    
HELIX    6   6 GLY D   54  TYR D   67  1                                  12    
HELIX    7   7 TYR D   67  VAL D   78  1                                  12    
HELIX    8   8 VAL D   78  THR D   85  1                                   9    
HELIX    9   9 THR D   89  ARG D   93  5                                   5    
SHEET    1   A 2 SER A   2  GLN A   5  0                                        
SHEET    2   A 2 CYS A  22  SER A  25 -1  O  ASN A  23   N  THR A   4           
SHEET    1   B 5 GLN A   9  SER A  13  0                                        
SHEET    2   B 5 THR A 110  VAL A 115  1  O  VAL A 115   N  LEU A  12           
SHEET    3   B 5 ALA A  86  SER A  93 -1  N  ALA A  86   O  LEU A 112           
SHEET    4   B 5 ALA A  31  GLN A  37 -1  N  GLN A  37   O  VAL A  87           
SHEET    5   B 5 GLN A  44  ALA A  49 -1  O  ALA A  49   N  LEU A  32           
SHEET    1   C 4 GLN A   9  SER A  13  0                                        
SHEET    2   C 4 THR A 110  VAL A 115  1  O  VAL A 115   N  LEU A  12           
SHEET    3   C 4 ALA A  86  SER A  93 -1  N  ALA A  86   O  LEU A 112           
SHEET    4   C 4 THR A 105  PHE A 106 -1  O  THR A 105   N  LEU A  92           
SHEET    1   D 4 LEU A  18  ILE A  20  0                                        
SHEET    2   D 4 LEU A  75  LYS A  77 -1  O  LYS A  77   N  LEU A  18           
SHEET    3   D 4 PHE A  62  THR A  65 -1  N  GLU A  63   O  GLN A  76           
SHEET    4   D 4 LYS A  55  SER A  58 -1  N  GLY A  56   O  ALA A  64           
SHEET    1   E 4 VAL B   4  SER B   7  0                                        
SHEET    2   E 4 VAL B  19  GLN B  25 -1  O  SER B  22   N  SER B   7           
SHEET    3   E 4 SER B  76  LEU B  79 -1  O  LEU B  79   N  VAL B  19           
SHEET    4   E 4 LYS B  66  SER B  68 -1  N  LYS B  66   O  THR B  78           
SHEET    1   F 6 ASN B  10  ALA B  13  0                                        
SHEET    2   F 6 THR B 112  VAL B 116  1  O  THR B 115   N  ALA B  13           
SHEET    3   F 6 SER B  88  GLY B  95 -1  N  TYR B  90   O  THR B 112           
SHEET    4   F 6 ASN B  31  ASP B  38 -1  N  TYR B  35   O  PHE B  91           
SHEET    5   F 6 GLY B  42  SER B  49 -1  O  ILE B  46   N  TRP B  34           
SHEET    6   F 6 GLU B  56  LYS B  57 -1  O  GLU B  56   N  TYR B  48           
SHEET    1   G 4 ASN B  10  ALA B  13  0                                        
SHEET    2   G 4 THR B 112  VAL B 116  1  O  THR B 115   N  ALA B  13           
SHEET    3   G 4 SER B  88  GLY B  95 -1  N  TYR B  90   O  THR B 112           
SHEET    4   G 4 TYR B 107  PHE B 108 -1  O  TYR B 107   N  SER B  94           
SHEET    1   H 8 GLU C  40  TRP C  43  0                                        
SHEET    2   H 8 ASP C  29  ASP C  35 -1  N  ASP C  35   O  GLU C  40           
SHEET    3   H 8 ILE C  19  PHE C  26 -1  N  PHE C  24   O  LEU C  31           
SHEET    4   H 8 HIS C   5  SER C  15 -1  N  GLN C  14   O  ILE C  19           
SHEET    5   H 8 PHE D   7  THR D  18 -1  O  PHE D   7   N  SER C  15           
SHEET    6   H 8 ARG D  23  TYR D  32 -1  O  ARG D  25   N  TYR D  16           
SHEET    7   H 8 GLU D  35  ASP D  41 -1  O  PHE D  40   N  THR D  28           
SHEET    8   H 8 TYR D  47  ALA D  49 -1  O  ARG D  48   N  ARG D  39           
SHEET    1   I 4 GLN C  88  PRO C  93  0                                        
SHEET    2   I 4 ASN C 103  ILE C 112 -1  O  ILE C 106   N  PHE C  92           
SHEET    3   I 4 PHE C 145  PHE C 153 -1  O  PHE C 145   N  ILE C 112           
SHEET    4   I 4 VAL C 132  GLU C 134 -1  N  TYR C 133   O  TYR C 150           
SHEET    1   J 4 GLN C  88  PRO C  93  0                                        
SHEET    2   J 4 ASN C 103  ILE C 112 -1  O  ILE C 106   N  PHE C  92           
SHEET    3   J 4 PHE C 145  PHE C 153 -1  O  PHE C 145   N  ILE C 112           
SHEET    4   J 4 PHE C 138  VAL C 139 -1  N  PHE C 138   O  HIS C 146           
SHEET    1   K 4 LYS C 126  SER C 127  0                                        
SHEET    2   K 4 ASN C 118  ARG C 123 -1  N  ARG C 123   O  LYS C 126           
SHEET    3   K 4 TYR C 161  GLU C 166 -1  O  LYS C 164   N  THR C 120           
SHEET    4   K 4 VAL C 174  TRP C 178 -1  O  VAL C 174   N  VAL C 165           
SHEET    1   L 4 ASN D  98  LEU D 103  0                                        
SHEET    2   L 4 ASN D 113  PHE D 122 -1  O  VAL D 116   N  SER D 102           
SHEET    3   L 4 PHE D 155  MET D 163 -1  O  MET D 163   N  ASN D 113           
SHEET    4   L 4 VAL D 142  SER D 144 -1  N  SER D 143   O  MET D 160           
SHEET    1   M 4 ASN D  98  LEU D 103  0                                        
SHEET    2   M 4 ASN D 113  PHE D 122 -1  O  VAL D 116   N  SER D 102           
SHEET    3   M 4 PHE D 155  MET D 163 -1  O  MET D 163   N  ASN D 113           
SHEET    4   M 4 ILE D 148  ARG D 149 -1  N  ILE D 148   O  GLN D 156           
SHEET    1   N 4 GLN D 136  GLU D 138  0                                        
SHEET    2   N 4 LYS D 128  ARG D 133 -1  N  ARG D 133   O  GLN D 136           
SHEET    3   N 4 VAL D 170  GLU D 176 -1  O  HIS D 174   N  ARG D 130           
SHEET    4   N 4 ILE D 184  ARG D 189 -1  O  TRP D 188   N  TYR D 171           
SSBOND   1 CYS A   22    CYS A   90                          1555   1555  2.03  
SSBOND   2 CYS B   23    CYS B   92                          1555   1555  2.03  
SSBOND   3 CYS C  107    CYS C  163                          1555   1555  2.03  
SSBOND   4 CYS D   15    CYS D   79                          1555   1555  2.04  
SSBOND   5 CYS D  117    CYS D  173                          1555   1555  2.03  
CISPEP   1 SER B    7    PRO B    8          0        -0.18                     
CISPEP   2 SER C   15    PRO C   16          0        -0.05                     
CISPEP   3 PHE C  113    PRO C  114          0        -0.33                     
CISPEP   4 TYR D  123    PRO D  124          0         0.06                     
CRYST1   97.603   97.603  175.561  90.00  90.00  90.00 P 41 2 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      0.010246  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010246  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005696        0.00000