HEADER    TOXIN                                   29-NOV-05   2F6E              
TITLE     CLOSTRIDIUM DIFFICILE TOXIN A C-TERMINAL FRAGMENT 1 (TCDA-F1)         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TOXIN A;                                                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: C-TERMINAL FRAGMENT 1;                                     
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: CLOSTRIDIUM DIFFICILE;                          
SOURCE   3 ORGANISM_TAXID: 1496;                                                
SOURCE   4 STRAIN: 48489;                                                       
SOURCE   5 GENE: TOXA, TCDA;                                                    
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS;                            
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET-3A                                    
KEYWDS    BETA SOLENOID, C-TERMINAL REPETITIVE DOMAIN, CROPS, TOXIN             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.K.NG,J.G.HO                                                         
REVDAT   6   29-MAY-24 2F6E    1       REMARK                                   
REVDAT   5   21-DEC-22 2F6E    1       SEQADV                                   
REVDAT   4   13-JUL-11 2F6E    1       VERSN                                    
REVDAT   3   24-FEB-09 2F6E    1       VERSN                                    
REVDAT   2   10-JAN-06 2F6E    1       JRNL                                     
REVDAT   1   20-DEC-05 2F6E    0                                                
JRNL        AUTH   J.G.HO,A.GRECO,M.RUPNIK,K.K.NG                               
JRNL        TITL   CRYSTAL STRUCTURE OF RECEPTOR-BINDING C-TERMINAL REPEATS     
JRNL        TITL 2 FROM CLOSTRIDIUM DIFFICILE TOXIN A                           
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 102 18373 2005              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   16344467                                                     
JRNL        DOI    10.1073/PNAS.0506391102                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.85 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.24                                        
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) : 1.85                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 40.16                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 10199                          
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) : 0.162                           
REMARK   3   R VALUE            (WORKING SET) : 0.160                           
REMARK   3   FREE R VALUE                     : 0.205                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 516                             
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) : 1.85                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.90                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 709                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1350                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 43                           
REMARK   3   BIN FREE R VALUE                    : 0.1750                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 988                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 167                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : LIKELY RESIDUAL                                     
REMARK   3   FROM WILSON PLOT           (A**2) : 15.00                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 13.84                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.10000                                              
REMARK   3    B22 (A**2) : 0.10000                                              
REMARK   3    B33 (A**2) : -0.20000                                             
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): 0.137         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.130         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.077         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.436         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.954                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.933                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1019 ; 0.007 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1382 ; 0.996 ; 1.915       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   124 ; 6.328 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   133 ; 0.074 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   835 ; 0.003 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   393 ; 0.185 ; 0.200       
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):   110 ; 0.127 ; 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):    51 ; 0.174 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    23 ; 0.121 ; 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):   613 ; 1.960 ; 2.000       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   972 ; 2.929 ; 2.500       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   406 ; 3.930 ; 3.500       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   410 ; 5.745 ; 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  : 1                                          
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     2        A   126                          
REMARK   3    ORIGIN FOR THE GROUP (A):  18.3848  16.1024  44.3830              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0080 T22:   0.0056                                     
REMARK   3      T33:   0.0070 T12:  -0.0011                                     
REMARK   3      T13:  -0.0004 T23:   0.0019                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.1326 L22:   0.2584                                     
REMARK   3      L33:   0.3118 L12:   0.0672                                     
REMARK   3      L13:   0.0296 L23:   0.2549                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0143 S12:   0.0144 S13:   0.0059                       
REMARK   3      S21:   0.0123 S22:   0.0310 S23:   0.0130                       
REMARK   3      S31:  -0.0005 S32:   0.0049 S33:  -0.0166                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH 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: NULL                                      
REMARK   4                                                                      
REMARK   4 2F6E COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-DEC-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000035507.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-SEP-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 8.3.1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979571,0.979741,1.019867         
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL                     
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 10716                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.850                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.160                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.3                               
REMARK 200  DATA REDUNDANCY                : 6.400                              
REMARK 200  R MERGE                    (I) : 0.05700                            
REMARK 200  R SYM                      (I) : 0.05700                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 21.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.85                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.92                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.18700                            
REMARK 200  R SYM FOR SHELL            (I) : 0.18700                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 7.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 40.17                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.06                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 250 MM AMMONIUM TARTRATE, 100 MM         
REMARK 280  SODIUM ACETATE, 20% GLYCEROL, PH 5.5, VAPOR DIFFUSION, HANGING      
REMARK 280  DROP, TEMPERATURE 295K                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+1/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+3/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+1/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+3/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z+1/2                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       66.05500            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       21.02500            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       21.02500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       33.02750            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       21.02500            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       21.02500            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       99.08250            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       21.02500            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       21.02500            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       33.02750            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       21.02500            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       21.02500            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       99.08250            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       66.05500            
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 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     ILE A   127                                                      
REMARK 465     TYR A   128                                                      
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    TYR A  61       93.12   -160.89                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE DIFFERENCES BETWEEN THE SEQUENCE PRESENT IN THIS                 
REMARK 999 STRUCTURE AND THE SEQUENCE IN THE REFERENCE DATABASE ARE             
REMARK 999 UNIQUE TO STRAIN 48489 OF CLOSTRIDIUM DIFFICILE.                     
DBREF  2F6E A    2   128  UNP    P16154   TOXA_CLODI    2583   2709             
SEQADV 2F6E ILE A   10  UNP  P16154    MET  2591 VARIANT                        
SEQADV 2F6E ILE A   17  UNP  P16154    THR  2598 VARIANT                        
SEQADV 2F6E PRO A   38  UNP  P16154    SER  2619 VARIANT                        
SEQADV 2F6E ASN A   71  UNP  P16154    LYS  2652 VARIANT                        
SEQADV 2F6E ASN A   91  UNP  P16154    LYS  2672 VARIANT                        
SEQADV 2F6E MET A   92  UNP  P16154    VAL  2673 VARIANT                        
SEQRES   1 A  127  TYR TYR PHE GLU PRO ASN THR ALA ILE GLY ALA ASN GLY          
SEQRES   2 A  127  TYR LYS ILE ILE ASP ASN LYS ASN PHE TYR PHE ARG ASN          
SEQRES   3 A  127  GLY LEU PRO GLN ILE GLY VAL PHE LYS GLY PRO ASN GLY          
SEQRES   4 A  127  PHE GLU TYR PHE ALA PRO ALA ASN THR ASP ALA ASN ASN          
SEQRES   5 A  127  ILE GLU GLY GLN ALA ILE ARG TYR GLN ASN ARG PHE LEU          
SEQRES   6 A  127  HIS LEU LEU GLY ASN ILE TYR TYR PHE GLY ASN ASN SER          
SEQRES   7 A  127  LYS ALA VAL THR GLY TRP GLN THR ILE ASN GLY ASN MET          
SEQRES   8 A  127  TYR TYR PHE MET PRO ASP THR ALA MET ALA ALA ALA GLY          
SEQRES   9 A  127  GLY LEU PHE GLU ILE ASP GLY VAL ILE TYR PHE PHE GLY          
SEQRES  10 A  127  VAL ASP GLY VAL LYS ALA PRO GLY ILE TYR                      
FORMUL   2  HOH   *167(H2 O)                                                    
SHEET    1   A 3 GLY A  14  ILE A  18  0                                        
SHEET    2   A 3 LYS A  21  ARG A  26 -1  O  PHE A  23   N  LYS A  16           
SHEET    3   A 3 LEU A  29  PRO A  30 -1  O  LEU A  29   N  ARG A  26           
SHEET    1   B 3 GLY A  33  GLY A  37  0                                        
SHEET    2   B 3 GLY A  40  ALA A  45 -1  O  GLU A  42   N  PHE A  35           
SHEET    3   B 3 GLN A  57  ALA A  58 -1  O  GLN A  57   N  ALA A  45           
SHEET    1   C 2 ARG A  64  LEU A  68  0                                        
SHEET    2   C 2 ASN A  71  PHE A  75 -1  O  PHE A  75   N  ARG A  64           
SHEET    1   D 2 GLY A  84  ILE A  88  0                                        
SHEET    2   D 2 ASN A  91  PHE A  95 -1  O  PHE A  95   N  GLY A  84           
SHEET    1   E 2 GLY A 106  ILE A 110  0                                        
SHEET    2   E 2 VAL A 113  PHE A 117 -1  O  VAL A 113   N  ILE A 110           
CRYST1   42.050   42.050  132.110  90.00  90.00  90.00 P 41 21 2     8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.023781  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023781  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007569        0.00000