HEADER    ISOMERASE                               25-JAN-02   1KV5              
TITLE     STRUCTURE OF TRYPANOSOMA BRUCEI BRUCEI TIM WITH THE SALT-BRIDGE-      
TITLE    2 FORMING RESIDUE ARG191 MUTATED TO SER                                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRIOSEPHOSPHATE ISOMERASE, GLYCOSOMAL;                     
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: TIM;                                                        
COMPND   5 EC: 5.3.1.1;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: TRYPANOSOMA BRUCEI BRUCEI;                      
SOURCE   3 ORGANISM_TAXID: 5702;                                                
SOURCE   4 STRAIN: BRUCEI;                                                      
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET3A                                     
KEYWDS    TIM BARREL, MUTANT, SALT BRIDGE, ISOMERASE                            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    I.KURSULA,S.PARTANEN,A.-M.LAMBEIR,R.K.WIERENGA                        
REVDAT   9   16-AUG-23 1KV5    1       REMARK                                   
REVDAT   8   27-OCT-21 1KV5    1       REMARK SEQADV                            
REVDAT   7   13-JUL-11 1KV5    1       VERSN                                    
REVDAT   6   24-FEB-09 1KV5    1       VERSN                                    
REVDAT   5   22-MAR-05 1KV5    1       HELIX  SHEET  REMARK                     
REVDAT   4   23-NOV-04 1KV5    1       SOURCE JRNL   REMARK                     
REVDAT   3   01-APR-03 1KV5    1       JRNL                                     
REVDAT   2   27-SEP-02 1KV5    1       JRNL   REMARK                            
REVDAT   1   29-MAR-02 1KV5    0                                                
JRNL        AUTH   I.KURSULA,S.PARTANEN,A.-M.LAMBEIR,R.K.WIERENGA               
JRNL        TITL   THE IMPORTANCE OF THE CONSERVED ARG191-ASP227 SALT BRIDGE OF 
JRNL        TITL 2 TRIOSEPHOSPHATE ISOMERASE FOR FOLDING, STABILITY, AND        
JRNL        TITL 3 CATALYSIS                                                    
JRNL        REF    FEBS LETT.                    V. 518    39 2002              
JRNL        REFN                   ISSN 0014-5793                               
JRNL        PMID   11997014                                                     
JRNL        DOI    10.1016/S0014-5793(02)02639-X                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.65 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.0                                           
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ENGH & HUBER                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.65                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 15.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 57315                          
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) : 0.145                           
REMARK   3   R VALUE            (WORKING SET) : 0.143                           
REMARK   3   FREE R VALUE                     : 0.175                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3053                            
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) : 1.65                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1720                       
REMARK   3   BIN FREE R VALUE SET COUNT          : NULL                         
REMARK   3   BIN FREE R VALUE                    : 0.2110                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3756                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 55                                      
REMARK   3   SOLVENT ATOMS            : 779                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 19.50                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.47                          
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : NULL                          
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : NULL                          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  NULL ; 0.013 ; 0.000       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  NULL ; 1.771 ; 1.900       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  NULL ; 0.849 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ; 1.534 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ; 2.429 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ; 3.913 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK PARAMETERS FOR MASK          
REMARK   3                 CALCULATION                                          
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : NULL                                          
REMARK   3   ION PROBE RADIUS   : NULL                                          
REMARK   3   SHRINKAGE RADIUS   : NULL                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1KV5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-FEB-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000015375.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 27-MAY-01                          
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               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : X13                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.8500                             
REMARK 200  MONOCHROMATOR                  : TRIANGULAR MONOCHROMATOR           
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 115031                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.650                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 15.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 4.000                              
REMARK 200  R MERGE                    (I) : 0.03100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 37.7000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.65                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.68                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.25300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 5TIM                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 46.69                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.31                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, SODIUM CHLORIDE,       
REMARK 280  CITRIC ACID, PH 5.5, VAPOR DIFFUSION, HANGING DROP AT 295K          
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
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       22.47150            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       54.67500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       50.31900            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       54.67500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       22.47150            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       50.31900            
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 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 5000 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18920 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -50.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     MET B     1                                                      
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   OD1  ASN B    89     O    HOH B  5831              1.45            
REMARK 500   O    HOH A  4721     O    HOH A  4883              1.86            
REMARK 500   O    HOH B  5807     O    HOH B  5968              1.96            
REMARK 500   OG1  THR A   221     O    HOH A  4610              2.00            
REMARK 500   OE1  GLU B    53     O    HOH B  5947              2.05            
REMARK 500   O    HOH A  4853     O    HOH A  4894              2.07            
REMARK 500   CG   ASN B    89     O    HOH B  5831              2.13            
REMARK 500   O    HOH A  4752     O    HOH A  4886              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   NH2  ARG A   226     O    HOH A  4777     4446     0.47            
REMARK 500   CZ   ARG A   226     O    HOH A  4777     4446     1.07            
REMARK 500   O    HOH A  4576     O    HOH A  4891     4546     1.74            
REMARK 500   O    HOH A  4767     O    HOH A  4902     1455     1.86            
REMARK 500   O    HOH A  4747     O    HOH A  4890     4446     1.86            
REMARK 500   O    HOH A  4781     O    HOH A  4883     1655     1.89            
REMARK 500   NH1  ARG A   226     O    HOH A  4777     4446     1.91            
REMARK 500   O    HOH A  4819     O    HOH A  4900     4546     2.07            
REMARK 500   NE   ARG A   226     O    HOH A  4777     4446     2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP A 201   CB  -  CG  -  OD1 ANGL. DEV. =   8.4 DEGREES          
REMARK 500    ARG A 226   NE  -  CZ  -  NH1 ANGL. DEV. =   4.4 DEGREES          
REMARK 500    ARG A 226   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.0 DEGREES          
REMARK 500    ARG B 226   NE  -  CZ  -  NH1 ANGL. DEV. =   5.0 DEGREES          
REMARK 500    ARG B 226   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.6 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 A  13     -148.61     52.10                                   
REMARK 500    LYS B  13     -149.86     51.72                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PGA A 1350                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PGA B 2350                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 5600                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTT A 3450                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 4500                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL B 4501                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL B 4502                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 4503                
DBREF  1KV5 A    1   250  UNP    P04789   TPIS_TRYBB       1    250             
DBREF  1KV5 B    1   250  UNP    P04789   TPIS_TRYBB       1    250             
SEQADV 1KV5 SER A  191  UNP  P04789    ARG   191 ENGINEERED MUTATION            
SEQADV 1KV5 SER B  191  UNP  P04789    ARG   191 ENGINEERED MUTATION            
SEQRES   1 A  250  MET SER LYS PRO GLN PRO ILE ALA ALA ALA ASN TRP LYS          
SEQRES   2 A  250  CYS ASN GLY SER GLN GLN SER LEU SER GLU LEU ILE ASP          
SEQRES   3 A  250  LEU PHE ASN SER THR SER ILE ASN HIS ASP VAL GLN CYS          
SEQRES   4 A  250  VAL VAL ALA SER THR PHE VAL HIS LEU ALA MET THR LYS          
SEQRES   5 A  250  GLU ARG LEU SER HIS PRO LYS PHE VAL ILE ALA ALA GLN          
SEQRES   6 A  250  ASN ALA ILE ALA LYS SER GLY ALA PHE THR GLY GLU VAL          
SEQRES   7 A  250  SER LEU PRO ILE LEU LYS ASP PHE GLY VAL ASN TRP ILE          
SEQRES   8 A  250  VAL LEU GLY HIS SER GLU ARG ARG ALA TYR TYR GLY GLU          
SEQRES   9 A  250  THR ASN GLU ILE VAL ALA ASP LYS VAL ALA ALA ALA VAL          
SEQRES  10 A  250  ALA SER GLY PHE MET VAL ILE ALA CYS ILE GLY GLU THR          
SEQRES  11 A  250  LEU GLN GLU ARG GLU SER GLY ARG THR ALA VAL VAL VAL          
SEQRES  12 A  250  LEU THR GLN ILE ALA ALA ILE ALA LYS LYS LEU LYS LYS          
SEQRES  13 A  250  ALA ASP TRP ALA LYS VAL VAL ILE ALA TYR GLU PRO VAL          
SEQRES  14 A  250  TRP ALA ILE GLY THR GLY LYS VAL ALA THR PRO GLN GLN          
SEQRES  15 A  250  ALA GLN GLU ALA HIS ALA LEU ILE SER SER TRP VAL SER          
SEQRES  16 A  250  SER LYS ILE GLY ALA ASP VAL ALA GLY GLU LEU ARG ILE          
SEQRES  17 A  250  LEU TYR GLY GLY SER VAL ASN GLY LYS ASN ALA ARG THR          
SEQRES  18 A  250  LEU TYR GLN GLN ARG ASP VAL ASN GLY PHE LEU VAL GLY          
SEQRES  19 A  250  GLY ALA SER LEU LYS PRO GLU PHE VAL ASP ILE ILE LYS          
SEQRES  20 A  250  ALA THR GLN                                                  
SEQRES   1 B  250  MET SER LYS PRO GLN PRO ILE ALA ALA ALA ASN TRP LYS          
SEQRES   2 B  250  CYS ASN GLY SER GLN GLN SER LEU SER GLU LEU ILE ASP          
SEQRES   3 B  250  LEU PHE ASN SER THR SER ILE ASN HIS ASP VAL GLN CYS          
SEQRES   4 B  250  VAL VAL ALA SER THR PHE VAL HIS LEU ALA MET THR LYS          
SEQRES   5 B  250  GLU ARG LEU SER HIS PRO LYS PHE VAL ILE ALA ALA GLN          
SEQRES   6 B  250  ASN ALA ILE ALA LYS SER GLY ALA PHE THR GLY GLU VAL          
SEQRES   7 B  250  SER LEU PRO ILE LEU LYS ASP PHE GLY VAL ASN TRP ILE          
SEQRES   8 B  250  VAL LEU GLY HIS SER GLU ARG ARG ALA TYR TYR GLY GLU          
SEQRES   9 B  250  THR ASN GLU ILE VAL ALA ASP LYS VAL ALA ALA ALA VAL          
SEQRES  10 B  250  ALA SER GLY PHE MET VAL ILE ALA CYS ILE GLY GLU THR          
SEQRES  11 B  250  LEU GLN GLU ARG GLU SER GLY ARG THR ALA VAL VAL VAL          
SEQRES  12 B  250  LEU THR GLN ILE ALA ALA ILE ALA LYS LYS LEU LYS LYS          
SEQRES  13 B  250  ALA ASP TRP ALA LYS VAL VAL ILE ALA TYR GLU PRO VAL          
SEQRES  14 B  250  TRP ALA ILE GLY THR GLY LYS VAL ALA THR PRO GLN GLN          
SEQRES  15 B  250  ALA GLN GLU ALA HIS ALA LEU ILE SER SER TRP VAL SER          
SEQRES  16 B  250  SER LYS ILE GLY ALA ASP VAL ALA GLY GLU LEU ARG ILE          
SEQRES  17 B  250  LEU TYR GLY GLY SER VAL ASN GLY LYS ASN ALA ARG THR          
SEQRES  18 B  250  LEU TYR GLN GLN ARG ASP VAL ASN GLY PHE LEU VAL GLY          
SEQRES  19 B  250  GLY ALA SER LEU LYS PRO GLU PHE VAL ASP ILE ILE LYS          
SEQRES  20 B  250  ALA THR GLN                                                  
HET    PGA  A1350       9                                                       
HET    DTT  A3450       8                                                       
HET    GOL  A4500       6                                                       
HET    GOL  A4503       6                                                       
HET    PGA  B2350       9                                                       
HET    SO4  B5600       5                                                       
HET    GOL  B4501       6                                                       
HET    GOL  B4502       6                                                       
HETNAM     PGA 2-PHOSPHOGLYCOLIC ACID                                           
HETNAM     DTT 2,3-DIHYDROXY-1,4-DITHIOBUTANE                                   
HETNAM     GOL GLYCEROL                                                         
HETNAM     SO4 SULFATE ION                                                      
HETSYN     DTT 1,4-DITHIOTHREITOL                                               
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   3  PGA    2(C2 H5 O6 P)                                                
FORMUL   4  DTT    C4 H10 O2 S2                                                 
FORMUL   5  GOL    4(C3 H8 O3)                                                  
FORMUL   8  SO4    O4 S 2-                                                      
FORMUL  11  HOH   *779(H2 O)                                                    
HELIX    1   1 SER A   17  SER A   30  1                                  14    
HELIX    2   2 THR A   44  VAL A   46  5                                   3    
HELIX    3   3 HIS A   47  LEU A   55  1                                   9    
HELIX    4   4 SER A   79  PHE A   86  1                                   8    
HELIX    5   5 HIS A   95  TYR A  102  1                                   8    
HELIX    6   6 THR A  105  GLY A  120  1                                  16    
HELIX    7   7 THR A  130  SER A  136  1                                   7    
HELIX    8   8 ARG A  138  LYS A  153  1                                  16    
HELIX    9   9 LEU A  154  ALA A  160  5                                   7    
HELIX   10  10 PRO A  168  ILE A  172  5                                   5    
HELIX   11  11 THR A  179  ILE A  198  1                                  20    
HELIX   12  12 GLY A  199  LEU A  206  1                                   8    
HELIX   13  13 ASN A  218  GLN A  224  1                                   7    
HELIX   14  14 GLY A  234  PRO A  240  5                                   7    
HELIX   15  15 GLU A  241  ALA A  248  1                                   8    
HELIX   16  16 SER B   17  SER B   30  1                                  14    
HELIX   17  17 THR B   44  VAL B   46  5                                   3    
HELIX   18  18 HIS B   47  LEU B   55  1                                   9    
HELIX   19  19 SER B   79  PHE B   86  1                                   8    
HELIX   20  20 HIS B   95  TYR B  102  1                                   8    
HELIX   21  21 THR B  105  SER B  119  1                                  15    
HELIX   22  22 THR B  130  SER B  136  1                                   7    
HELIX   23  23 ARG B  138  LYS B  153  1                                  16    
HELIX   24  24 LEU B  154  ALA B  160  5                                   7    
HELIX   25  25 PRO B  168  ILE B  172  5                                   5    
HELIX   26  26 THR B  179  ILE B  198  1                                  20    
HELIX   27  27 GLY B  199  LEU B  206  1                                   8    
HELIX   28  28 ASN B  218  GLN B  224  1                                   7    
HELIX   29  29 GLY B  234  PRO B  240  5                                   7    
HELIX   30  30 GLU B  241  ALA B  248  1                                   8    
SHEET    1   A 9 ILE A   7  ASN A  11  0                                        
SHEET    2   A 9 GLN A  38  ALA A  42  1  O  VAL A  40   N  ALA A  10           
SHEET    3   A 9 PHE A  60  ALA A  64  1  O  VAL A  61   N  VAL A  41           
SHEET    4   A 9 TRP A  90  LEU A  93  1  O  VAL A  92   N  ALA A  64           
SHEET    5   A 9 MET A 122  ILE A 127  1  O  ILE A 124   N  ILE A  91           
SHEET    6   A 9 VAL A 162  TYR A 166  1  O  VAL A 163   N  ALA A 125           
SHEET    7   A 9 ILE A 208  GLY A 211  1  O  LEU A 209   N  ILE A 164           
SHEET    8   A 9 GLY A 230  VAL A 233  1  O  GLY A 230   N  TYR A 210           
SHEET    9   A 9 ILE A   7  ASN A  11  1  N  ASN A  11   O  VAL A 233           
SHEET    1   B 9 ILE B   7  ASN B  11  0                                        
SHEET    2   B 9 GLN B  38  ALA B  42  1  O  VAL B  40   N  ALA B  10           
SHEET    3   B 9 PHE B  60  ALA B  64  1  O  ALA B  63   N  VAL B  41           
SHEET    4   B 9 TRP B  90  LEU B  93  1  O  VAL B  92   N  ALA B  64           
SHEET    5   B 9 MET B 122  ILE B 127  1  O  ILE B 124   N  ILE B  91           
SHEET    6   B 9 VAL B 162  TYR B 166  1  O  VAL B 163   N  ALA B 125           
SHEET    7   B 9 ILE B 208  GLY B 211  1  O  LEU B 209   N  TYR B 166           
SHEET    8   B 9 GLY B 230  VAL B 233  1  O  GLY B 230   N  TYR B 210           
SHEET    9   B 9 ILE B   7  ASN B  11  1  N  ASN B  11   O  VAL B 233           
SITE     1 AC1 16 ASN A  11  LYS A  13  HIS A  95  GLU A 167                    
SITE     2 AC1 16 ALA A 171  ILE A 172  GLY A 173  GLY A 212                    
SITE     3 AC1 16 SER A 213  LEU A 232  GLY A 234  GLY A 235                    
SITE     4 AC1 16 HOH A4533  HOH A4548  HOH A4549  HOH A4703                    
SITE     1 AC2 16 ASN B  11  LYS B  13  HIS B  95  GLU B 167                    
SITE     2 AC2 16 ALA B 171  ILE B 172  GLY B 173  GLY B 212                    
SITE     3 AC2 16 SER B 213  LEU B 232  GLY B 234  GLY B 235                    
SITE     4 AC2 16 HOH B5617  HOH B5620  HOH B5631  HOH B5757                    
SITE     1 AC3  7 SER B  32  ILE B  33  ASN B  34  HIS B  35                    
SITE     2 AC3  7 LYS B 247  GLN B 250  HOH B5964                               
SITE     1 AC4  7 LEU A 144  TRP A 193  HOH A4616  ALA B 148                    
SITE     2 AC4  7 TRP B 193  LYS B 197  HOH B5683                               
SITE     1 AC5  6 LYS A 155  LYS A 156  HOH A4573  HOH A4659                    
SITE     2 AC5  6 HOH A4861  HOH B5935                                          
SITE     1 AC6  5 HOH A4800  LYS B 176  GLN B 182  HOH B5825                    
SITE     2 AC6  5 HOH B5887                                                     
SITE     1 AC7  4 GLN B  38  ASN B  89  TRP B  90  HOH B5880                    
SITE     1 AC8  3 GLN A 181  GLU A 185  HOH A4588                               
CRYST1   44.943  100.638  109.350  90.00  90.00  90.00 P 21 21 21    8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.022250  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009937  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009145        0.00000