HEADER    IMMUNE SYSTEM                           16-AUG-05   2APF              
TITLE     CRYSTAL STRUCTURE OF THE A52V/S54N/K66E VARIANT OF THE MURINE T CELL  
TITLE    2 RECEPTOR V BETA 8.2 DOMAIN                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: T CELL RECEPTOR BETA CHAIN V;                              
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS;                              
SOURCE   3 ORGANISM_COMMON: NORWAY RAT;                                         
SOURCE   4 ORGANISM_TAXID: 10116;                                               
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS;                            
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PT7-7                                     
KEYWDS    T CELL RECEPTOR, IMMUNE SYSTEM                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.CHO,C.P.SWAMINATHAN,J.YANG,M.C.KERZIC,R.GUAN,M.C.KIEKE,D.M.KRANZ,   
AUTHOR   2 R.A.MARIUZZA,E.J.SUNDBERG                                            
REVDAT   5   30-OCT-24 2APF    1       REMARK                                   
REVDAT   4   04-APR-18 2APF    1       REMARK                                   
REVDAT   3   29-APR-15 2APF    1       HETSYN VERSN                             
REVDAT   2   24-FEB-09 2APF    1       VERSN                                    
REVDAT   1   21-MAR-06 2APF    0                                                
JRNL        AUTH   S.CHO,C.P.SWAMINATHAN,J.YANG,M.C.KERZIC,R.GUAN,M.C.KIEKE,    
JRNL        AUTH 2 D.M.KRANZ,R.A.MARIUZZA,E.J.SUNDBERG                          
JRNL        TITL   STRUCTURAL BASIS OF AFFINITY MATURATION AND INTRAMOLECULAR   
JRNL        TITL 2 COOPERATIVITY IN A PROTEIN-PROTEIN INTERACTION.              
JRNL        REF    STRUCTURE                     V.  13  1775 2005              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   16338399                                                     
JRNL        DOI    10.1016/J.STR.2005.08.015                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
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) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 1.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 11549                          
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) : 0.201                           
REMARK   3   R VALUE            (WORKING SET) : 0.197                           
REMARK   3   FREE R VALUE                     : 0.263                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.200                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 630                             
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) : 1.80                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.85                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 660                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 73.83                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2500                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 34                           
REMARK   3   BIN FREE R VALUE                    : 0.2810                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 860                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 7                                       
REMARK   3   SOLVENT ATOMS            : 151                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 28.17                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.32000                                             
REMARK   3    B22 (A**2) : 0.81000                                              
REMARK   3    B33 (A**2) : -0.49000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.136         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.146         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.097         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.109         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.955                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.919                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   883 ; 0.015 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1196 ; 1.526 ; 1.950       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   109 ; 6.635 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    41 ;38.932 ;24.146       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   136 ;14.480 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     5 ;19.151 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   131 ; 0.090 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   682 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   405 ; 0.290 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):   577 ; 0.306 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   131 ; 0.194 ; 0.200       
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):    39 ; 0.192 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    35 ; 0.281 ; 0.200       
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):   562 ; 0.794 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   877 ; 1.361 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   365 ; 2.308 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   319 ; 3.391 ; 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  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
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 2APF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-SEP-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000034161.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 05-SEP-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
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 RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : OSMIC MIRRORS                      
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU)          
REMARK 200  DATA SCALING SOFTWARE          : D*TREK                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14201                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.580                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 62.500                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 4.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 75.0                               
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) : 1.58                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.66                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 65.0                               
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: MOLREP                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.80                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 2.0 M SODIUM MALONATE, 0.2 % DIOXANE,    
REMARK 280  PH 7.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X,-Y+1/2,Z                                             
REMARK 290       7555   -X+1/2,Y,-Z                                             
REMARK 290       8555   X,-Y,-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       15.80400            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       56.90950            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       37.35400            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       56.90950            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       15.80400            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       37.35400            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       15.80400            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       37.35400            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       56.90950            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       37.35400            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       15.80400            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       56.90950            
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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 282  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 324  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 339  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 342  LIES ON A SPECIAL POSITION.                          
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   CD   ARG A    44     O    HOH A   347              2.03            
REMARK 500   OE1  GLU A    73     O    HOH A   351              2.08            
REMARK 500   O    HOH A   227     O    HOH A   348              2.11            
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    HOH A   205     O    HOH A   349     6555     1.89            
REMARK 500   O    HOH A   297     O    HOH A   297     6655     2.01            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLY A  63   C     TYR A  65   N       0.275                       
REMARK 500    TYR A 101   C     PHE A 108   N       0.147                       
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    LEU A   0   CA  -  CB  -  CG  ANGL. DEV. =  14.8 DEGREES          
REMARK 500    ARG A  44   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.1 DEGREES          
REMARK 500    LEU A  81   CA  -  CB  -  CG  ANGL. DEV. =  14.2 DEGREES          
REMARK 500    TYR A 101   O   -  C   -  N   ANGL. DEV. = -11.2 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  15      130.48    -38.22                                   
REMARK 500    ARG A  69       77.07   -116.16                                   
REMARK 500    THR A  88      177.98    178.02                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    GLY A  63        -13.31                                           
REMARK 500    TYR A 101         10.73                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MLA A 200                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2APB   RELATED DB: PDB                                   
REMARK 900 THE G17E/S54N/L81S VARIANT OF THE MURINE T CELL RECEPTOR V BETA 8.2  
REMARK 900 DOMAIN                                                               
REMARK 900 RELATED ID: 2APT   RELATED DB: PDB                                   
REMARK 900 THE G17E/S54N/K66E/Q72H/E80V/L81S/T87S/G96V VARIANT OF THE MURINE T  
REMARK 900 CELL RECEPTOR V BETA 8.2 DOMAIN                                      
REMARK 900 RELATED ID: 2APV   RELATED DB: PDB                                   
REMARK 900 THE G17E/A52V/S54N/Q72H/E80V/L81S/T87S/G96V VARIANT OF THE MURINE T  
REMARK 900 CELL RECEPTOR V BETA 8.2 DOMAIN                                      
REMARK 900 RELATED ID: 2APW   RELATED DB: PDB                                   
REMARK 900 THE G17E/A52V/S54N/K66E/E80V/L81S/T87S/G96V VARIANT OF THE MURINE T  
REMARK 900 CELL RECEPTOR V BETA 8.2 DOMAIN                                      
REMARK 900 RELATED ID: 2APX   RELATED DB: PDB                                   
REMARK 900 THE G17E/A52V/S54N/K66E/Q72H/E80V/L81S/T87S/G96V VARIANT OF THE      
REMARK 900 MURINE T CELL RECEPTOR V BETA 8.2 DOMAIN                             
REMARK 900 RELATED ID: 2AQ1   RELATED DB: PDB                                   
REMARK 900 T-CELL RECEPTOR V BETA DOMAIN VARIANT (G17E/A52V/S54N/K66E/E80V/     
REMARK 900 L81S/T87S/G96V) COMPLEXED WITH SUPERANTIGEN SEC3 MUTANT              
REMARK 900 RELATED ID: 2AQ2   RELATED DB: PDB                                   
REMARK 900 T-CELL RECEPTOR V BETA DOMAIN VARIANT (G17E/A52V/S54N/K66E/L81S)     
REMARK 900 COMPLEXED WITH SUPERANTIGEN SEC3 MUTANT                              
REMARK 900 RELATED ID: 2AQ3   RELATED DB: PDB                                   
REMARK 900 T-CELL RECEPTOR V BETA DOMAIN VARIANT (G17E/L81S) COMPLEXED WITH     
REMARK 900 SUPERANTIGEN SEC3 MUTANT                                             
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 NO SUITABLE SEQUENCE DATABASE REFERENCE WAS AVAILABLE                
REMARK 999 AT THE TIME OF PROCESSING THIS FILE.                                 
DBREF  2APF A    1    94  UNP    A2NAI0   A2NAI0_RAT       2     94             
SEQRES   1 A  112  ILE LEU GLU ALA ALA VAL THR GLN SER PRO ARG ASN LYS          
SEQRES   2 A  112  VAL ALA VAL THR GLY GLU LYS VAL THR LEU SER CYS GLN          
SEQRES   3 A  112  GLN THR ASN ASN HIS ASN ASN MET TYR TRP TYR ARG GLN          
SEQRES   4 A  112  ASP THR GLY HIS GLY LEU ARG LEU ILE HIS TYR SER TYR          
SEQRES   5 A  112  GLY VAL GLY ASN THR GLU LYS GLY ASP ILE PRO ASP GLY          
SEQRES   6 A  112  TYR GLU ALA SER ARG PRO SER GLN GLU GLN PHE SER LEU          
SEQRES   7 A  112  ILE LEU GLU LEU ALA THR PRO SER GLN THR THR VAL TYR          
SEQRES   8 A  112  PHE CYS ALA SER GLY GLY GLY GLY THR LEU TYR PHE GLY          
SEQRES   9 A  112  ALA GLY THR ARG LEU SER VAL LEU                              
HET    MLA  A 200       7                                                       
HETNAM     MLA MALONIC ACID                                                     
HETSYN     MLA DICARBOXYLIC ACID C3; PROPANEDIOLIC ACID;                        
HETSYN   2 MLA  METHANEDICARBOXYLIC ACID                                        
FORMUL   2  MLA    C3 H4 O4                                                     
FORMUL   3  HOH   *151(H2 O)                                                    
HELIX    1   1 THR A   83  THR A   87  5                                   5    
SHEET    1   A 4 VAL A   4  SER A   7  0                                        
SHEET    2   A 4 VAL A  19  GLN A  25 -1  O  SER A  22   N  SER A   7           
SHEET    3   A 4 GLN A  74  LEU A  79 -1  O  LEU A  79   N  VAL A  19           
SHEET    4   A 4 GLU A  66  SER A  68 -1  N  SER A  68   O  SER A  76           
SHEET    1   B 6 ASN A  10  VAL A  14  0                                        
SHEET    2   B 6 THR A 112  LEU A 117  1  O  LEU A 117   N  ALA A  13           
SHEET    3   B 6 THR A  88  GLY A  95 -1  N  THR A  88   O  LEU A 114           
SHEET    4   B 6 ASN A  31  GLN A  37 -1  N  TYR A  35   O  PHE A  91           
SHEET    5   B 6 LEU A  43  SER A  49 -1  O  ILE A  46   N  TRP A  34           
SHEET    6   B 6 GLU A  56  LYS A  57 -1  O  GLU A  56   N  TYR A  48           
SHEET    1   C 4 ASN A  10  VAL A  14  0                                        
SHEET    2   C 4 THR A 112  LEU A 117  1  O  LEU A 117   N  ALA A  13           
SHEET    3   C 4 THR A  88  GLY A  95 -1  N  THR A  88   O  LEU A 114           
SHEET    4   C 4 TYR A 101  PHE A 108 -1  O  TYR A 101   N  SER A  94           
SSBOND   1 CYS A   23    CYS A   92                          1555   1555  2.07  
CISPEP   1 SER A    7    PRO A    8          0         0.40                     
SITE     1 AC1 10 ASN A  28  ARG A  44  ASP A  59  GLY A  96                    
SITE     2 AC1 10 THR A  99  HOH A 221  HOH A 256  HOH A 297                    
SITE     3 AC1 10 HOH A 316  HOH A 347                                          
CRYST1   31.608   74.708  113.819  90.00  90.00  90.00 I 21 21 21    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      0.031637  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.013385  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008786        0.00000