HEADER    IMMUNE SYSTEM                           12-OCT-10   3P77              
TITLE     CRYSTAL STRUCTURES OF THE CHICKEN YF1*7.1 MOLECULE                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: MHC RFP-Y CLASS I ALPHA CHAIN;                             
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 20-294;                                       
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: BETA-2-MICROGLOBULIN;                                      
COMPND   8 CHAIN: B;                                                            
COMPND   9 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: GALLUS GALLUS;                                  
SOURCE   3 ORGANISM_COMMON: BANTAM,CHICKENS;                                    
SOURCE   4 ORGANISM_TAXID: 9031;                                                
SOURCE   5 GENE: YFV;                                                           
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: TB1;                                       
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PMAL-P4X;                                 
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: GALLUS GALLUS;                                  
SOURCE  13 ORGANISM_COMMON: BANTAM,CHICKENS;                                    
SOURCE  14 ORGANISM_TAXID: 9031;                                                
SOURCE  15 GENE: B2M;                                                           
SOURCE  16 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  17 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  18 EXPRESSION_SYSTEM_STRAIN: TB1;                                       
SOURCE  19 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  20 EXPRESSION_SYSTEM_PLASMID: PMAL-P4X                                  
KEYWDS    IG-LIKE C1-TYPE (IMMUNOGLOBULIN-LIKE) DOMAIN, HISTOCOMPATIBILITY      
KEYWDS   2 ANTIGEN, IMMUNE SYSTEM                                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.S.HEE,S.GAO,B.LOLL,M.M.MILLER,B.UCHANSKA-ZIEGLER,O.DAUMKE,A.ZIEGLER 
REVDAT   4   30-OCT-24 3P77    1       REMARK                                   
REVDAT   3   06-SEP-23 3P77    1       REMARK SEQADV                            
REVDAT   2   22-DEC-10 3P77    1       JRNL                                     
REVDAT   1   24-NOV-10 3P77    0                                                
JRNL        AUTH   C.S.HEE,S.GAO,B.LOLL,M.M.MILLER,B.UCHANSKA-ZIEGLER,O.DAUMKE, 
JRNL        AUTH 2 A.ZIEGLER                                                    
JRNL        TITL   STRUCTURE OF A CLASSICAL MHC CLASS I MOLECULE THAT BINDS     
JRNL        TITL 2 "NON-CLASSICAL" LIGANDS.                                     
JRNL        REF    PLOS BIOL.                    V.   8 00557 2010              
JRNL        REFN                   ISSN 1544-9173                               
JRNL        PMID   21151886                                                     
JRNL        DOI    10.1371/JOURNAL.PBIO.1000557                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0109                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.65                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 89.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 40891                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.176                           
REMARK   3   R VALUE            (WORKING SET) : 0.174                           
REMARK   3   FREE R VALUE                     : 0.216                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2193                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.60                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.64                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 3127                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 93.21                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2060                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 154                          
REMARK   3   BIN FREE R VALUE                    : 0.2330                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2988                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 50                                      
REMARK   3   SOLVENT ATOMS            : 382                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 13.86                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : 0.06000                                              
REMARK   3    B33 (A**2) : -0.05000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.03000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.106         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.061         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.348         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.960                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.938                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3213 ; 0.012 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  2234 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4362 ; 1.403 ; 1.944       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  5415 ; 0.835 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   395 ; 6.171 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   162 ;34.642 ;23.642       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   518 ;13.136 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    22 ;15.464 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   437 ; 0.087 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3602 ; 0.006 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):   689 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1898 ; 0.680 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):   761 ; 0.200 ; 1.500       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3069 ; 1.224 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1315 ; 2.065 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1279 ; 3.260 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 3                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     0        A   179                          
REMARK   3    ORIGIN FOR THE GROUP (A):  25.5523   9.7156   4.3404              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0417 T22:   0.0049                                     
REMARK   3      T33:   0.0556 T12:  -0.0068                                     
REMARK   3      T13:   0.0010 T23:   0.0116                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.1359 L22:   0.8114                                     
REMARK   3      L33:   1.7466 L12:   0.0977                                     
REMARK   3      L13:  -0.0498 L23:   0.4949                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0032 S12:   0.0176 S13:  -0.0471                       
REMARK   3      S21:  -0.0528 S22:  -0.0071 S23:  -0.0353                       
REMARK   3      S31:  -0.0626 S32:  -0.0206 S33:   0.0039                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A   180        A   273                          
REMARK   3    ORIGIN FOR THE GROUP (A):  10.5167 -17.5148  23.3454              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0811 T22:   0.0945                                     
REMARK   3      T33:   0.0486 T12:  -0.0090                                     
REMARK   3      T13:   0.0243 T23:   0.0223                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   2.6363 L22:   3.3490                                     
REMARK   3      L33:   1.8827 L12:   1.3299                                     
REMARK   3      L13:   0.3242 L23:   0.2184                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0164 S12:  -0.0798 S13:  -0.2379                       
REMARK   3      S21:   0.1635 S22:  -0.0616 S23:   0.0535                       
REMARK   3      S31:   0.2743 S32:  -0.1387 S33:   0.0780                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B     1        B    99                          
REMARK   3    ORIGIN FOR THE GROUP (A):   2.4974  -0.0846  13.9016              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0261 T22:   0.0481                                     
REMARK   3      T33:   0.0642 T12:   0.0041                                     
REMARK   3      T13:  -0.0006 T23:   0.0070                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   2.1575 L22:   1.3556                                     
REMARK   3      L33:   3.7140 L12:   0.1709                                     
REMARK   3      L13:  -1.2416 L23:  -0.6734                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0674 S12:   0.0142 S13:  -0.1039                       
REMARK   3      S21:  -0.0140 S22:   0.0862 S23:   0.1082                       
REMARK   3      S31:   0.0410 S32:  -0.2445 S33:  -0.0188                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 3P77 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-OCT-10.                  
REMARK 100 THE DEPOSITION ID IS D_1000062042.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 07-AUG-08                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5                                  
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : BESSY                              
REMARK 200  BEAMLINE                       : 14.2                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9184                             
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL SI(111)             
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : RAYONIX MX-225                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 43084                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 89.8                               
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) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.64                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 93.2                               
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: PHASER                                                
REMARK 200 STARTING MODEL: 3P73                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 42.67                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.15                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.24 M AMAC, 0.1 M NAAC PH 5.0, 20%      
REMARK 280  PEG 4000, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y+1/2,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       27.52000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 5340 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18450 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -1.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 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     GLU A    -1                                                      
REMARK 465     SER A    86                                                      
REMARK 465     LYS A    87                                                      
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    ASP A  29     -126.40     52.52                                   
REMARK 500    ASP A 110      104.80   -160.58                                   
REMARK 500    PHE A 119      -55.01   -124.01                                   
REMARK 500    ARG A 220       62.96   -111.68                                   
REMARK 500    TRP B  60       -8.96     80.58                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     2PE A  279                                                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 274                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 275                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 276                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PGE A 277                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PGE A 278                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 2PE A 279                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3BEV   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3BEW   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3P73   RELATED DB: PDB                                   
DBREF  3P77 A   -1   273  UNP    Q9BCW3   Q9BCW3_CHICK    20    294             
DBREF  3P77 B    1    99  UNP    P21611   B2MG_CHICK      21    119             
SEQADV 3P77 PHE A    0  UNP  Q9BCW3    CYS    21 CONFLICT                       
SEQRES   1 A  275  GLU PHE GLY SER HIS SER LEU ARG TYR PHE LEU THR GLY          
SEQRES   2 A  275  MET THR ASP PRO GLY PRO GLY MET PRO ARG PHE VAL ILE          
SEQRES   3 A  275  VAL GLY TYR VAL ASP ASP LYS ILE PHE GLY THR TYR ASN          
SEQRES   4 A  275  SER LYS SER ARG THR ALA GLN PRO ILE VAL GLU MET LEU          
SEQRES   5 A  275  PRO GLN GLU ASP GLN GLU HIS TRP ASP THR GLN THR GLN          
SEQRES   6 A  275  LYS ALA GLN GLY GLY GLU ARG ASP PHE ASP TRP ASN LEU          
SEQRES   7 A  275  ASN ARG LEU PRO GLU ARG TYR ASN LYS SER LYS GLY SER          
SEQRES   8 A  275  HIS THR MET GLN MET MET PHE GLY CYS ASP ILE LEU GLU          
SEQRES   9 A  275  ASP GLY SER ILE ARG GLY TYR ASP GLN TYR ALA PHE ASP          
SEQRES  10 A  275  GLY ARG ASP PHE LEU ALA PHE ASP MET ASP THR MET THR          
SEQRES  11 A  275  PHE THR ALA ALA ASP PRO VAL ALA GLU ILE THR LYS ARG          
SEQRES  12 A  275  ARG TRP GLU THR GLU GLY THR TYR ALA GLU ARG TRP LYS          
SEQRES  13 A  275  HIS GLU LEU GLY THR VAL CYS VAL GLN ASN LEU ARG ARG          
SEQRES  14 A  275  TYR LEU GLU HIS GLY LYS ALA ALA LEU LYS ARG ARG VAL          
SEQRES  15 A  275  GLN PRO GLU VAL ARG VAL TRP GLY LYS GLU ALA ASP GLY          
SEQRES  16 A  275  ILE LEU THR LEU SER CYS HIS ALA HIS GLY PHE TYR PRO          
SEQRES  17 A  275  ARG PRO ILE THR ILE SER TRP MET LYS ASP GLY MET VAL          
SEQRES  18 A  275  ARG ASP GLN GLU THR ARG TRP GLY GLY ILE VAL PRO ASN          
SEQRES  19 A  275  SER ASP GLY THR TYR HIS ALA SER ALA ALA ILE ASP VAL          
SEQRES  20 A  275  LEU PRO GLU ASP GLY ASP LYS TYR TRP CYS ARG VAL GLU          
SEQRES  21 A  275  HIS ALA SER LEU PRO GLN PRO GLY LEU PHE SER TRP GLU          
SEQRES  22 A  275  PRO GLN                                                      
SEQRES   1 B   99  ALA ASP LEU THR PRO LYS VAL GLN VAL TYR SER ARG PHE          
SEQRES   2 B   99  PRO ALA SER ALA GLY THR LYS ASN VAL LEU ASN CYS PHE          
SEQRES   3 B   99  ALA ALA GLY PHE HIS PRO PRO LYS ILE SER ILE THR LEU          
SEQRES   4 B   99  MET LYS ASP GLY VAL PRO MET GLU GLY ALA GLN TYR SER          
SEQRES   5 B   99  ASP MET SER PHE ASN ASP ASP TRP THR PHE GLN ARG LEU          
SEQRES   6 B   99  VAL HIS ALA ASP PHE THR PRO SER SER GLY SER THR TYR          
SEQRES   7 B   99  ALA CYS LYS VAL GLU HIS GLU THR LEU LYS GLU PRO GLN          
SEQRES   8 B   99  VAL TYR LYS TRP ASP PRO GLU PHE                              
HET    ACT  A 274       4                                                       
HET    ACT  A 275       4                                                       
HET    ACT  A 276       4                                                       
HET    PGE  A 277      10                                                       
HET    PGE  A 278      10                                                       
HET    2PE  A 279      18                                                       
HETNAM     ACT ACETATE ION                                                      
HETNAM     PGE TRIETHYLENE GLYCOL                                               
HETNAM     2PE NONAETHYLENE GLYCOL                                              
FORMUL   3  ACT    3(C2 H3 O2 1-)                                               
FORMUL   6  PGE    2(C6 H14 O4)                                                 
FORMUL   8  2PE    C18 H38 O10                                                  
FORMUL   9  HOH   *382(H2 O)                                                    
HELIX    1   1 ASP A   54  TYR A   83  1                                  30    
HELIX    2   2 VAL A  135  GLY A  147  1                                  13    
HELIX    3   3 GLY A  147  THR A  159  1                                  13    
HELIX    4   4 THR A  159  GLY A  172  1                                  14    
HELIX    5   5 GLY A  172  ARG A  178  1                                   7    
HELIX    6   6 ASP A  221  THR A  224  5                                   4    
HELIX    7   7 LEU A  246  ASP A  251  5                                   6    
SHEET    1   A 8 THR A  42  PRO A  45  0                                        
SHEET    2   A 8 LYS A  31  ASN A  37 -1  N  THR A  35   O  GLN A  44           
SHEET    3   A 8 PHE A  22  VAL A  28 -1  N  VAL A  28   O  LYS A  31           
SHEET    4   A 8 SER A   2  MET A  12 -1  N  ARG A   6   O  TYR A  27           
SHEET    5   A 8 THR A  91  LEU A 101 -1  O  MET A  94   N  LEU A   9           
SHEET    6   A 8 ILE A 106  PHE A 114 -1  O  ALA A 113   N  GLN A  93           
SHEET    7   A 8 ARG A 117  ASP A 123 -1  O  LEU A 120   N  TYR A 112           
SHEET    8   A 8 THR A 128  ALA A 131 -1  O  THR A 128   N  ASP A 123           
SHEET    1   B 4 GLU A 183  ALA A 191  0                                        
SHEET    2   B 4 ILE A 194  PHE A 204 -1  O  THR A 196   N  LYS A 189           
SHEET    3   B 4 TYR A 237  VAL A 245 -1  O  ILE A 243   N  LEU A 197           
SHEET    4   B 4 ARG A 225  TRP A 226 -1  N  ARG A 225   O  ALA A 242           
SHEET    1   C 4 GLU A 183  ALA A 191  0                                        
SHEET    2   C 4 ILE A 194  PHE A 204 -1  O  THR A 196   N  LYS A 189           
SHEET    3   C 4 TYR A 237  VAL A 245 -1  O  ILE A 243   N  LEU A 197           
SHEET    4   C 4 VAL A 230  PRO A 231 -1  N  VAL A 230   O  HIS A 238           
SHEET    1   D 4 MET A 218  VAL A 219  0                                        
SHEET    2   D 4 THR A 210  LYS A 215 -1  N  LYS A 215   O  MET A 218           
SHEET    3   D 4 TYR A 253  GLU A 258 -1  O  ARG A 256   N  SER A 212           
SHEET    4   D 4 GLY A 266  SER A 269 -1  O  PHE A 268   N  CYS A 255           
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  ALA B  68   N  LEU B  23           
SHEET    4   E 4 GLN B  50  TYR B  51 -1  N  GLN B  50   O  HIS 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  ALA B  68   N  LEU B  23           
SHEET    4   F 4 SER B  55  PHE B  56 -1  N  SER B  55   O  GLN B  63           
SHEET    1   G 4 VAL B  44  PRO B  45  0                                        
SHEET    2   G 4 SER B  36  LYS B  41 -1  N  LYS B  41   O  VAL B  44           
SHEET    3   G 4 TYR B  78  GLU B  83 -1  O  ALA B  79   N  MET B  40           
SHEET    4   G 4 GLN B  91  LYS B  94 -1  O  GLN B  91   N  VAL B  82           
SSBOND   1 CYS A   98    CYS A  161                          1555   1555  2.14  
SSBOND   2 CYS A  199    CYS A  255                          1555   1555  2.13  
SSBOND   3 CYS B   25    CYS B   80                          1555   1555  2.03  
CISPEP   1 TYR A  205    PRO A  206          0         3.86                     
CISPEP   2 HIS B   31    PRO B   32          0         2.67                     
SITE     1 AC1  4 ARG A  82  THR A 139  ARG A 142  TRP A 143                    
SITE     1 AC2  1 ARG A 142                                                     
SITE     1 AC3  4 ARG A 166  HOH A 541  MET B  40  LYS B  81                    
SITE     1 AC4  4 ASP A  71  TYR A 149  ARG A 152  HOH A 325                    
SITE     1 AC5  6 ASN A  75  ARG A  78  LEU A  79  TYR A 112                    
SITE     2 AC5  6 TRP A 143  2PE A 279                                          
SITE     1 AC6  9 PHE A  33  GLY A  34  GLN A  61  GLY A  68                    
SITE     2 AC6  9 ASP A  71  MET A  94  TYR A 112  TRP A 153                    
SITE     3 AC6  9 PGE A 278                                                     
CRYST1   52.870   55.040   63.590  90.00  97.04  90.00 P 1 21 1      2          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.018914  0.000000  0.002334        0.00000                         
SCALE2      0.000000  0.018169  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015845        0.00000