HEADER    TOXIN                                   15-FEB-95   1CHP              
TITLE     SURPRISING LEADS FOR A CHOLERA TOXIN RECEPTOR BINDING ANTAGONIST;     
TITLE    2 CRYSTALLOGRAPHIC STUDIES OF CTB MUTANTS                              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CHOLERA TOXIN B PENTAMER;                                  
COMPND   3 CHAIN: D, E, F, G, H;                                                
COMPND   4 SYNONYM: CHOLERAGEN;                                                 
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: VIBRIO CHOLERAE;                                
SOURCE   3 ORGANISM_TAXID: 666;                                                 
SOURCE   4 STRAIN: OGAWA 41 (CLASSICAL);                                        
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    TOXIN                                                                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    E.A.MERRITT,W.G.J.HOL                                                 
REVDAT   5   20-NOV-24 1CHP    1       REMARK                                   
REVDAT   4   03-NOV-21 1CHP    1       REMARK SEQADV                            
REVDAT   3   24-FEB-09 1CHP    1       VERSN                                    
REVDAT   2   01-APR-03 1CHP    1       JRNL                                     
REVDAT   1   08-MAR-96 1CHP    0                                                
JRNL        AUTH   E.A.MERRITT,S.SARFATY,T.T.CHANG,L.M.PALMER,M.G.JOBLING,      
JRNL        AUTH 2 R.K.HOLMES,W.G.HOL                                           
JRNL        TITL   SURPRISING LEADS FOR A CHOLERA TOXIN RECEPTOR-BINDING        
JRNL        TITL 2 ANTAGONIST: CRYSTALLOGRAPHIC STUDIES OF CTB MUTANTS.         
JRNL        REF    STRUCTURE                     V.   3   561 1995              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   8590017                                                      
JRNL        DOI    10.1016/S0969-2126(01)00190-3                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   E.A.MERRITT,S.SARFATY,F.VAN DEN AKKER,C.L'HOIR,J.A.MARTIAL,  
REMARK   1  AUTH 2 W.G.J.HOL                                                    
REMARK   1  TITL   2.2 ANGSTROMS CRYSTAL STRUCTURE OF CHOLERA TOXIN B5 PENTAMER 
REMARK   1  TITL 2 BOUND TO RECEPTOR GM1 PENTASACCHARIDE                        
REMARK   1  REF    PROTEIN SCI.                  V.   3   166 1994              
REMARK   1  REFN                   ISSN 0961-8368                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   M.G.JOBLING,R.K.HOLMES                                       
REMARK   1  TITL   ANALYSIS OF STRUCTURE AND FUNCTION OF THE B SUBUNIT OF       
REMARK   1  TITL 2 CHOLERA TOXIN BY THE USE OF SITE-DIRECTED MUTAGENESIS        
REMARK   1  REF    MOL.MICROBIOL.                V.   5  1755 1991              
REMARK   1  REFN                   ISSN 0950-382X                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR                                               
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 12.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 3.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 83.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 28286                          
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) : 0.178                           
REMARK   3   FREE R VALUE                     : NULL                            
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            : 4090                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 248                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 21.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.011                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.660                           
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  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 1CHP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000172334.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 14-JUL-94                          
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.54                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : SIEMENS X1000                      
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XENGEN                             
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 32710                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.0                               
REMARK 200  DATA REDUNDANCY                : 2.850                              
REMARK 200  R MERGE                    (I) : 0.08100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.62                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.5                                   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,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        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       51.30000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       33.30500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       51.30000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       33.30500            
REMARK 290   SMTRY3   4  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 300 REMARK: CHOLERA TOXIN IS AN AB5 HEXAMER.  THE B-PENTAMER OF          
REMARK 300 CHOLERA TOXIN IS RESPONSIBLE FOR RECEPTOR RECOGNITION AND            
REMARK 300 BINDING.                                                             
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: PENTAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 12830 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 20670 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -45.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, E, F, G, H                         
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 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 THE FIVE IDENTICAL B SUBUNITS ARE LABELLED AS CHAINS D, E,           
REMARK 400 F, G, AND H CORRESPONDING TO CHAIN IDENTIFIERS USED FOR              
REMARK 400 THE RELATED HEAT-LABILE ENTEROTOXIN (LT) FROM ESCHERICHIA            
REMARK 400 COLI AND FOR THE WILD TYPE CHOLERA TOXIN/RECEPTOR COMPLEX.           
REMARK 400                                                                      
REMARK 400 SUBUNIT    CHAIN           RESIDUES                                  
REMARK 400                                                                      
REMARK 400   B#1        D              1 - 103                                  
REMARK 400   B#2        E              1 - 103                                  
REMARK 400   B#3        F              1 - 103                                  
REMARK 400   B#4        G              1 - 103                                  
REMARK 400   B#5        H              1 - 103                                  
REMARK 400   WATER                     1 - 248                                  
REMARK 400   CHLORIDE                249 - 249                                  
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 F  31   CA  -  CB  -  CG  ANGL. DEV. =  17.0 DEGREES          
REMARK 500    LEU G  31   CA  -  CB  -  CG  ANGL. DEV. =  14.1 DEGREES          
REMARK 500    LEU H  31   CA  -  CB  -  CG  ANGL. DEV. =  14.4 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    LYS D  34       -0.12     69.51                                   
REMARK 500    LYS E  34       16.90     58.98                                   
REMARK 500    ARG E  35       34.63   -141.54                                   
REMARK 500    GLN F  56       24.19    -69.76                                   
REMARK 500    ILE F  58     -148.26    -69.42                                   
REMARK 500    LYS G  34       -1.64     74.91                                   
REMARK 500    ASN H  44        3.17    -68.51                                   
REMARK 500    SER H  55       42.23    -81.01                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 IN THE PENTAMER THE BETA SHEETS FROM ADJACENT MONOMERS               
REMARK 700 COMBINE TO FORM A CONTINUOUS SIX-STRANDED ANTI-PARALLEL              
REMARK 700 SHEET ACROSS EACH MONOMER-MONOMER INTERFACE.                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL H 249                  
DBREF  1CHP D    1   103  UNP    P01556   CHTB_VIBCH      22    124             
DBREF  1CHP E    1   103  UNP    P01556   CHTB_VIBCH      22    124             
DBREF  1CHP F    1   103  UNP    P01556   CHTB_VIBCH      22    124             
DBREF  1CHP G    1   103  UNP    P01556   CHTB_VIBCH      22    124             
DBREF  1CHP H    1   103  UNP    P01556   CHTB_VIBCH      22    124             
SEQADV 1CHP HIS D   18  UNP  P01556    TYR    39 CONFLICT                       
SEQADV 1CHP ASP D   33  UNP  P01556    GLY    54 ENGINEERED MUTATION            
SEQADV 1CHP THR D   47  UNP  P01556    ILE    68 CONFLICT                       
SEQADV 1CHP HIS E   18  UNP  P01556    TYR    39 CONFLICT                       
SEQADV 1CHP ASP E   33  UNP  P01556    GLY    54 ENGINEERED MUTATION            
SEQADV 1CHP THR E   47  UNP  P01556    ILE    68 CONFLICT                       
SEQADV 1CHP HIS F   18  UNP  P01556    TYR    39 CONFLICT                       
SEQADV 1CHP ASP F   33  UNP  P01556    GLY    54 ENGINEERED MUTATION            
SEQADV 1CHP THR F   47  UNP  P01556    ILE    68 CONFLICT                       
SEQADV 1CHP HIS G   18  UNP  P01556    TYR    39 CONFLICT                       
SEQADV 1CHP ASP G   33  UNP  P01556    GLY    54 ENGINEERED MUTATION            
SEQADV 1CHP THR G   47  UNP  P01556    ILE    68 CONFLICT                       
SEQADV 1CHP HIS H   18  UNP  P01556    TYR    39 CONFLICT                       
SEQADV 1CHP ASP H   33  UNP  P01556    GLY    54 ENGINEERED MUTATION            
SEQADV 1CHP THR H   47  UNP  P01556    ILE    68 CONFLICT                       
SEQRES   1 D  103  THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS          
SEQRES   2 D  103  ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER          
SEQRES   3 D  103  TYR THR GLU SER LEU ALA ASP LYS ARG GLU MET ALA ILE          
SEQRES   4 D  103  ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL          
SEQRES   5 D  103  PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE          
SEQRES   6 D  103  GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR          
SEQRES   7 D  103  GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS          
SEQRES   8 D  103  THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN              
SEQRES   1 E  103  THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS          
SEQRES   2 E  103  ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER          
SEQRES   3 E  103  TYR THR GLU SER LEU ALA ASP LYS ARG GLU MET ALA ILE          
SEQRES   4 E  103  ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL          
SEQRES   5 E  103  PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE          
SEQRES   6 E  103  GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR          
SEQRES   7 E  103  GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS          
SEQRES   8 E  103  THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN              
SEQRES   1 F  103  THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS          
SEQRES   2 F  103  ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER          
SEQRES   3 F  103  TYR THR GLU SER LEU ALA ASP LYS ARG GLU MET ALA ILE          
SEQRES   4 F  103  ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL          
SEQRES   5 F  103  PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE          
SEQRES   6 F  103  GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR          
SEQRES   7 F  103  GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS          
SEQRES   8 F  103  THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN              
SEQRES   1 G  103  THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS          
SEQRES   2 G  103  ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER          
SEQRES   3 G  103  TYR THR GLU SER LEU ALA ASP LYS ARG GLU MET ALA ILE          
SEQRES   4 G  103  ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL          
SEQRES   5 G  103  PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE          
SEQRES   6 G  103  GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR          
SEQRES   7 G  103  GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS          
SEQRES   8 G  103  THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN              
SEQRES   1 H  103  THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS          
SEQRES   2 H  103  ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER          
SEQRES   3 H  103  TYR THR GLU SER LEU ALA ASP LYS ARG GLU MET ALA ILE          
SEQRES   4 H  103  ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL          
SEQRES   5 H  103  PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE          
SEQRES   6 H  103  GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR          
SEQRES   7 H  103  GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS          
SEQRES   8 H  103  THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN              
HET     CL  H 249       1                                                       
HETNAM      CL CHLORIDE ION                                                     
FORMUL   6   CL    CL 1-                                                        
FORMUL   7  HOH   *248(H2 O)                                                    
HELIX    1 DA1 ILE D    5  CYS D    9  1                                   5    
HELIX    2 DA2 ASP D   59  THR D   78  1                                  20    
HELIX    3 EA1 ILE E    5  CYS E    9  1                                   5    
HELIX    4 EA2 LYS E   62  THR E   78  1                                  17    
HELIX    5 FA1 ILE F    5  CYS F    9  1                                   5    
HELIX    6 FA2 ASP F   59  THR F   78  1                                  20    
HELIX    7 GA1 ILE G    5  CYS G    9  1                                   5    
HELIX    8 HA2 GLN G   61  THR G   78  1                                  18    
HELIX    9 GA1 ILE H    5  CYS H    9  1                                   5    
HELIX   10 HA2 SER H   60  THR H   78  1                                  19    
SHEET    1 BB1 6 THR D  15  ASP D  22  0                                        
SHEET    2 BB1 6 VAL D  82  TRP D  88 -1                                        
SHEET    3 BB1 6 HIS D  94  ALA D 102 -1                                        
SHEET    4 BB1 6 SER E  26  SER E  30 -1                                        
SHEET    5 BB1 6 MET E  37  THR E  41 -1                                        
SHEET    6 BB1 6 THR E  47  VAL E  50 -1                                        
SHEET    1 BB2 6 THR E  15  ASP E  22  0                                        
SHEET    2 BB2 6 VAL E  82  TRP E  88 -1                                        
SHEET    3 BB2 6 HIS E  94  ALA E 102 -1                                        
SHEET    4 BB2 6 SER F  26  SER F  30 -1                                        
SHEET    5 BB2 6 MET F  37  THR F  41 -1                                        
SHEET    6 BB2 6 THR F  47  VAL F  50 -1                                        
SHEET    1 BB3 6 THR F  15  ASP F  22  0                                        
SHEET    2 BB3 6 VAL F  82  TRP F  88 -1                                        
SHEET    3 BB3 6 HIS F  94  ALA F 102 -1                                        
SHEET    4 BB3 6 SER G  26  SER G  30 -1                                        
SHEET    5 BB3 6 MET G  37  THR G  41 -1                                        
SHEET    6 BB3 6 THR G  47  VAL G  50 -1                                        
SHEET    1 BB4 6 THR G  15  ASP G  22  0                                        
SHEET    2 BB4 6 VAL G  82  TRP G  88 -1                                        
SHEET    3 BB4 6 HIS G  94  ALA G 102 -1                                        
SHEET    4 BB4 6 SER H  26  SER H  30 -1                                        
SHEET    5 BB4 6 MET H  37  THR H  41 -1                                        
SHEET    6 BB4 6 THR H  47  VAL H  50 -1                                        
SHEET    1 BB5 6 THR H  15  ASP H  22  0                                        
SHEET    2 BB5 6 VAL H  82  TRP H  88 -1                                        
SHEET    3 BB5 6 HIS H  94  ALA H 102 -1                                        
SHEET    4 BB5 6 SER D  26  SER D  30 -1                                        
SHEET    5 BB5 6 MET D  37  THR D  41 -1                                        
SHEET    6 BB5 6 THR D  47  VAL D  50 -1                                        
SSBOND   1 CYS D    9    CYS D   86                          1555   1555  2.02  
SSBOND   2 CYS E    9    CYS E   86                          1555   1555  2.02  
SSBOND   3 CYS F    9    CYS F   86                          1555   1555  2.02  
SSBOND   4 CYS G    9    CYS G   86                          1555   1555  2.03  
SSBOND   5 CYS H    9    CYS H   86                          1555   1555  2.03  
CISPEP   1 THR D   92    PRO D   93          0        -0.14                     
CISPEP   2 THR E   92    PRO E   93          0         0.31                     
CISPEP   3 THR F   92    PRO F   93          0        -0.05                     
CISPEP   4 THR G   92    PRO G   93          0        -0.22                     
CISPEP   5 THR H   92    PRO H   93          0        -0.85                     
SITE     1 AC1  5 HIS D  13  TYR H  12  HIS H  13  TRP H  88                    
SITE     2 AC1  5 HOH H 255                                                     
CRYST1  102.600   66.610   99.710  90.00 131.57  90.00 C 1 2 1      20          
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      0.009747  0.000000  0.008644        0.00000                         
SCALE2      0.000000  0.015013  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013405        0.00000