HEADER    ISOMERASE                               20-FEB-06   2CFF              
TITLE     CRYSTAL STRUCTURE OF N-((5'-PHOSPHORIBOSYL)-FORMIMINO)-5-             
TITLE    2 AMINOIMIDAZOL-4-CARBOXAMID RIBONUCLEOTID ISOMERASE MUTANT D127V (EC  
TITLE    3 3. 1.3.15, HISA)                                                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 1-(5-PHOSPHORIBOSYL)-5-[(5-PHOSPHORIBOSYLAMINO)            
COMPND   3 METHYLIDENEAMINO] IMIDAZOLE-4-CARBOXAMIDE ISOMERASE;                 
COMPND   4 CHAIN: A, B;                                                         
COMPND   5 SYNONYM: HISA, PHOSPHORIBOSYLFORMIMINO-5-AMINOIMIDAZOLE CARBOXAMIDE  
COMPND   6 RIBOTIDE ISOMERASE;                                                  
COMPND   7 EC: 5.3.1.16;                                                        
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: THERMOTOGA MARITIMA;                            
SOURCE   3 ORGANISM_TAXID: 2336;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    ISOMERASE, HISTIDINE BIOSYNTHESIS, THERMOPHILIC PROTEIN, AMINO-ACID   
KEYWDS   2 BIOSYNTHESIS                                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.HE,J.KUPER,R.STERNER,M.WILMMANS                                     
REVDAT   6   08-MAY-24 2CFF    1       REMARK                                   
REVDAT   5   24-JUL-19 2CFF    1       REMARK                                   
REVDAT   4   29-MAR-17 2CFF    1       SOURCE                                   
REVDAT   3   13-JUL-11 2CFF    1       VERSN                                    
REVDAT   2   24-FEB-09 2CFF    1       VERSN                                    
REVDAT   1   20-MAR-07 2CFF    0                                                
JRNL        AUTH   C.HE,J.KUPER,R.STERNER,M.WILMMANS                            
JRNL        TITL   CRYSTAL STRUCTURE OF N-((5'-PHOSPHORIBOSYL)-                 
JRNL        TITL 2 FORMIMINO)-5-AMINOIMIDAZOL-4-CARBOXAMID RIBONUCLEOTID        
JRNL        TITL 3 ISOMERASE MUTANT D127V (EC 3.1.3.15, HISA)                   
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 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 : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 92.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 15393                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.200                           
REMARK   3   FREE R VALUE                     : 0.283                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.020                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 770                             
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) : 10.92                        
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 50.00                        
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 162                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1730                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 9                            
REMARK   3   BIN FREE R VALUE                    : 0.1700                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3795                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 8                                       
REMARK   3   SOLVENT ATOMS            : 70                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : LIKELY RESIDUAL                                     
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 38.07                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 3.41100                                              
REMARK   3    B22 (A**2) : -1.86700                                             
REMARK   3    B33 (A**2) : -1.47600                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.24200                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.373         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.269         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 24.974        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.939                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.890                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3854 ; 0.011 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5186 ; 1.387 ; 1.994       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   480 ; 6.752 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   164 ;36.521 ;24.390       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   755 ;19.449 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    26 ;17.606 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   606 ; 0.088 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2784 ; 0.004 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1809 ; 0.221 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  2587 ; 0.310 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   198 ; 0.178 ; 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):    75 ; 0.201 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     5 ; 0.210 ; 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):  2469 ; 0.469 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3849 ; 0.814 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1541 ; 1.197 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1337 ; 1.969 ; 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  : 2                                          
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     1        A   241                          
REMARK   3    ORIGIN FOR THE GROUP (A): -10.0200  15.2700 -38.2860              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:  -0.2512 T22:  -0.0265                                     
REMARK   3      T33:  -0.0603 T12:   0.0373                                     
REMARK   3      T13:  -0.0647 T23:   0.0143                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   3.3113 L22:   2.8575                                     
REMARK   3      L33:   2.7304 L12:   0.3129                                     
REMARK   3      L13:  -0.8389 L23:  -0.3168                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.1225 S12:   0.0447 S13:  -0.0412                       
REMARK   3      S21:   0.1784 S22:  -0.0810 S23:  -0.1763                       
REMARK   3      S31:   0.2101 S32:   0.1887 S33:   0.2036                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B     1        B   241                          
REMARK   3    ORIGIN FOR THE GROUP (A):  12.3160  -4.4420 -14.6790              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:  -0.2934 T22:  -0.0616                                     
REMARK   3      T33:  -0.0478 T12:  -0.0038                                     
REMARK   3      T13:   0.0759 T23:   0.0164                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   3.3170 L22:   5.4556                                     
REMARK   3      L33:   3.0055 L12:  -0.3581                                     
REMARK   3      L13:  -0.9588 L23:  -0.0335                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0101 S12:   0.2859 S13:  -0.0132                       
REMARK   3      S21:   0.1801 S22:  -0.1220 S23:   0.3199                       
REMARK   3      S31:   0.0938 S32:  -0.1465 S33:   0.1120                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK BULK SOLVENT                                    
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : NULL                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS.                                                          
REMARK   4                                                                      
REMARK   4 2CFF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 20-FEB-06.                  
REMARK 100 THE DEPOSITION ID IS D_1290026287.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-APR-05                          
REMARK 200  TEMPERATURE           (KELVIN) : 287.0                              
REMARK 200  PH                             : 8.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : X11                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.813                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 18703                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 90.3                               
REMARK 200  DATA REDUNDANCY                : 3.200                              
REMARK 200  R MERGE                    (I) : 0.08000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.2000                            
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: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER                        
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 48.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1M TRIS PH8.5, 27% PEG 4000, 4.5%      
REMARK 280  MPD, 0.2M MGCL2, PH 8.50                                            
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y+1/2,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       23.54000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 ENGINEERED RESIDUE IN CHAIN A, ASP 127 TO VAL                        
REMARK 400 ENGINEERED RESIDUE IN CHAIN B, ASP 127 TO VAL                        
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     ARG A 241    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     THR B 232    CG2                                                 
REMARK 470     ARG B 241    CG   CD   NE   CZ   NH1  NH2                        
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   OE2  GLU B   174     OG   SER B   202              2.05            
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    ASN A  24       37.53    -90.18                                   
REMARK 500    GLU A  74       -0.37    -53.97                                   
REMARK 500    SER A 102      -94.46   -150.15                                   
REMARK 500    GLU A 159      -56.60   -122.34                                   
REMARK 500    ALA A 240       47.94   -103.86                                   
REMARK 500    ASN B  24       70.89   -106.92                                   
REMARK 500    GLU B  29       55.75    -90.49                                   
REMARK 500    ILE B  82       83.06    -63.06                                   
REMARK 500    SER B 102     -101.58   -148.64                                   
REMARK 500    ILE B 118        9.38    -65.34                                   
REMARK 500    ASP B 119       35.03     71.59                                   
REMARK 500    LYS B 136     -153.32    -83.66                                   
REMARK 500    ALA B 140      -34.80    -34.91                                   
REMARK 500    GLU B 143       56.01   -106.60                                   
REMARK 500    ASP B 169      113.24   -170.03                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN               
REMARK 700 ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW,          
REMARK 700 TWO SHEETS ARE DEFINED.                                              
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MPD A1242                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1QO2   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF N-((5'-PHOSPHORIBOSYL)- FORMIMINO)-5-           
REMARK 900 AMINOIMIDAZOL-4-CARBOXAMID RIBONUCLEOTID ISOMERASE (EC 3.1.3.15.,    
REMARK 900 HISA)                                                                
DBREF  2CFF A    1   241  UNP    Q9X0C7   HIS4_THEMA       1    241             
DBREF  2CFF B    1   241  UNP    Q9X0C7   HIS4_THEMA       1    241             
SEQADV 2CFF VAL A  127  UNP  Q9X0C7    ASP   127 ENGINEERED MUTATION            
SEQADV 2CFF VAL B  127  UNP  Q9X0C7    ASP   127 ENGINEERED MUTATION            
SEQRES   1 A  241  MET LEU VAL VAL PRO ALA ILE ASP LEU PHE ARG GLY LYS          
SEQRES   2 A  241  VAL ALA ARG MET ILE LYS GLY ARG LYS GLU ASN THR ILE          
SEQRES   3 A  241  PHE TYR GLU LYS ASP PRO VAL GLU LEU VAL GLU LYS LEU          
SEQRES   4 A  241  ILE GLU GLU GLY PHE THR LEU ILE HIS VAL VAL ASP LEU          
SEQRES   5 A  241  SER ASN ALA ILE GLU ASN SER GLY GLU ASN LEU PRO VAL          
SEQRES   6 A  241  LEU GLU LYS LEU SER GLU PHE ALA GLU HIS ILE GLN ILE          
SEQRES   7 A  241  GLY GLY GLY ILE ARG SER LEU ASP TYR ALA GLU LYS LEU          
SEQRES   8 A  241  ARG LYS LEU GLY TYR ARG ARG GLN ILE VAL SER SER LYS          
SEQRES   9 A  241  VAL LEU GLU ASP PRO SER PHE LEU LYS SER LEU ARG GLU          
SEQRES  10 A  241  ILE ASP VAL GLU PRO VAL PHE SER LEU VAL THR ARG GLY          
SEQRES  11 A  241  GLY ARG VAL ALA PHE LYS GLY TRP LEU ALA GLU GLU GLU          
SEQRES  12 A  241  ILE ASP PRO VAL SER LEU LEU LYS ARG LEU LYS GLU TYR          
SEQRES  13 A  241  GLY LEU GLU GLU ILE VAL HIS THR GLU ILE GLU LYS ASP          
SEQRES  14 A  241  GLY THR LEU GLN GLU HIS ASP PHE SER LEU THR LYS LYS          
SEQRES  15 A  241  ILE ALA ILE GLU ALA GLU VAL LYS VAL LEU ALA ALA GLY          
SEQRES  16 A  241  GLY ILE SER SER GLU ASN SER LEU LYS THR ALA GLN LYS          
SEQRES  17 A  241  VAL HIS THR GLU THR ASN GLY LEU LEU LYS GLY VAL ILE          
SEQRES  18 A  241  VAL GLY ARG ALA PHE LEU GLU GLY ILE LEU THR VAL GLU          
SEQRES  19 A  241  VAL MET LYS ARG TYR ALA ARG                                  
SEQRES   1 B  241  MET LEU VAL VAL PRO ALA ILE ASP LEU PHE ARG GLY LYS          
SEQRES   2 B  241  VAL ALA ARG MET ILE LYS GLY ARG LYS GLU ASN THR ILE          
SEQRES   3 B  241  PHE TYR GLU LYS ASP PRO VAL GLU LEU VAL GLU LYS LEU          
SEQRES   4 B  241  ILE GLU GLU GLY PHE THR LEU ILE HIS VAL VAL ASP LEU          
SEQRES   5 B  241  SER ASN ALA ILE GLU ASN SER GLY GLU ASN LEU PRO VAL          
SEQRES   6 B  241  LEU GLU LYS LEU SER GLU PHE ALA GLU HIS ILE GLN ILE          
SEQRES   7 B  241  GLY GLY GLY ILE ARG SER LEU ASP TYR ALA GLU LYS LEU          
SEQRES   8 B  241  ARG LYS LEU GLY TYR ARG ARG GLN ILE VAL SER SER LYS          
SEQRES   9 B  241  VAL LEU GLU ASP PRO SER PHE LEU LYS SER LEU ARG GLU          
SEQRES  10 B  241  ILE ASP VAL GLU PRO VAL PHE SER LEU VAL THR ARG GLY          
SEQRES  11 B  241  GLY ARG VAL ALA PHE LYS GLY TRP LEU ALA GLU GLU GLU          
SEQRES  12 B  241  ILE ASP PRO VAL SER LEU LEU LYS ARG LEU LYS GLU TYR          
SEQRES  13 B  241  GLY LEU GLU GLU ILE VAL HIS THR GLU ILE GLU LYS ASP          
SEQRES  14 B  241  GLY THR LEU GLN GLU HIS ASP PHE SER LEU THR LYS LYS          
SEQRES  15 B  241  ILE ALA ILE GLU ALA GLU VAL LYS VAL LEU ALA ALA GLY          
SEQRES  16 B  241  GLY ILE SER SER GLU ASN SER LEU LYS THR ALA GLN LYS          
SEQRES  17 B  241  VAL HIS THR GLU THR ASN GLY LEU LEU LYS GLY VAL ILE          
SEQRES  18 B  241  VAL GLY ARG ALA PHE LEU GLU GLY ILE LEU THR VAL GLU          
SEQRES  19 B  241  VAL MET LYS ARG TYR ALA ARG                                  
HET    MPD  A1242       8                                                       
HETNAM     MPD (4S)-2-METHYL-2,4-PENTANEDIOL                                    
FORMUL   3  MPD    C6 H14 O2                                                    
FORMUL   4  HOH   *70(H2 O)                                                     
HELIX    1   1 LYS A   19  ARG A   21  5                                   3    
HELIX    2   2 ASP A   31  GLY A   43  1                                  13    
HELIX    3   3 LEU A   52  ASN A   58  1                                   7    
HELIX    4   4 ASN A   62  SER A   70  1                                   9    
HELIX    5   5 GLU A   71  GLU A   74  5                                   4    
HELIX    6   6 SER A   84  GLY A   95  1                                  12    
HELIX    7   7 SER A  102  ASP A  108  1                                   7    
HELIX    8   8 SER A  110  LEU A  115  1                                   6    
HELIX    9   9 GLY A  137  ILE A  144  1                                   8    
HELIX   10  10 ASP A  145  GLU A  155  1                                  11    
HELIX   11  11 ASP A  176  GLU A  188  1                                  13    
HELIX   12  12 SER A  199  THR A  213  1                                  15    
HELIX   13  13 GLY A  223  GLU A  228  1                                   6    
HELIX   14  14 THR A  232  TYR A  239  1                                   8    
HELIX   15  15 LYS B   19  GLU B   23  5                                   5    
HELIX   16  16 ASP B   31  GLU B   42  1                                  12    
HELIX   17  17 LEU B   52  ASN B   58  1                                   7    
HELIX   18  18 ASN B   62  SER B   70  1                                   9    
HELIX   19  19 GLU B   71  GLU B   74  5                                   4    
HELIX   20  20 SER B   84  LYS B   93  1                                  10    
HELIX   21  21 SER B  102  ASP B  108  1                                   7    
HELIX   22  22 SER B  110  ILE B  118  1                                   9    
HELIX   23  23 LYS B  136  ALA B  140  5                                   5    
HELIX   24  24 ASP B  145  GLU B  155  1                                  11    
HELIX   25  25 ASP B  176  GLU B  188  1                                  13    
HELIX   26  26 SER B  199  THR B  213  1                                  15    
HELIX   27  27 GLY B  223  GLU B  228  1                                   6    
HELIX   28  28 THR B  232  ARG B  241  1                                  10    
SHEET    1  AA 6 ARG A 132  VAL A 133  0                                        
SHEET    2  AA 6 GLU A 121  ARG A 129 -1  O  ARG A 129   N  ARG A 132           
SHEET    3  AA 6 ARG A  98  VAL A 101  1  O  GLN A  99   N  VAL A 123           
SHEET    4  AA 6 ILE A  76  GLY A  79  1  O  ILE A  76   N  ARG A  98           
SHEET    5  AA 6 ILE A  47  ASP A  51  1  O  ILE A  47   N  GLN A  77           
SHEET    6  AA 6 LEU A   2  PHE A  10  1  O  PRO A   5   N  HIS A  48           
SHEET    1  AB 6 ARG A 132  VAL A 133  0                                        
SHEET    2  AB 6 GLU A 121  ARG A 129 -1  O  ARG A 129   N  ARG A 132           
SHEET    3  AB 6 GLU A 160  GLU A 165  1  O  GLU A 160   N  PHE A 124           
SHEET    4  AB 6 LYS A 190  ALA A 194  1  O  LYS A 190   N  ILE A 161           
SHEET    5  AB 6 LEU A 217  VAL A 222  1  N  LYS A 218   O  VAL A 191           
SHEET    6  AB 6 LEU A   2  PHE A  10  1  O  LEU A   2   N  VAL A 220           
SITE     1 AC1  5 LEU A 106  SER A 125  LEU A 126  VAL A 127                    
SITE     2 AC1  5 ALA A 134                                                     
CRYST1   48.710   47.080  105.250  90.00  98.10  90.00 P 1 21 1      4          
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      0.020530  0.000000  0.002922        0.00000                         
SCALE2      0.000000  0.021240  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009597        0.00000