HEADER    LYASE                                   29-FEB-08   3CEP              
TITLE     STRUCTURE OF A TRYPTOPHAN SYNTHASE QUINONOID INTERMEDIATE             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRYPTOPHAN SYNTHASE ALPHA CHAIN;                           
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 4.2.1.20;                                                        
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: TRYPTOPHAN SYNTHASE BETA CHAIN;                            
COMPND   8 CHAIN: B;                                                            
COMPND   9 EC: 4.2.1.20;                                                        
COMPND  10 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM;                         
SOURCE   3 ORGANISM_TAXID: 602;                                                 
SOURCE   4 GENE: TRPA;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: CB149;                                     
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PSTB7;                                    
SOURCE  10 MOL_ID: 2;                                                           
SOURCE  11 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM;                         
SOURCE  12 ORGANISM_TAXID: 602;                                                 
SOURCE  13 GENE: TRPB;                                                          
SOURCE  14 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  15 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  16 EXPRESSION_SYSTEM_STRAIN: CB149;                                     
SOURCE  17 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  18 EXPRESSION_SYSTEM_PLASMID: PSTB7                                     
KEYWDS    LYASE, CARBON-OXYGEN LYASE, TRYPTOPHAN BIOSYNTHESIS, ALLOSTERIC       
KEYWDS   2 ENZYME, AMINO-ACID BIOSYNTHESIS, AROMATIC AMINO ACID BIOSYNTHESIS,   
KEYWDS   3 PYRIDOXAL PHOSPHATE                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.R.M.BARENDS,T.DOMRATCHEVA,V.KULIK,L.BLUMENSTEIN,M.F.DUNN,           
AUTHOR   2 I.SCHLICHTING                                                        
REVDAT   6   01-NOV-23 3CEP    1       REMARK LINK                              
REVDAT   5   17-DEC-14 3CEP    1       REMARK                                   
REVDAT   4   30-NOV-11 3CEP    1       FORMUL HETATM                            
REVDAT   3   13-JUL-11 3CEP    1       VERSN                                    
REVDAT   2   24-FEB-09 3CEP    1       VERSN                                    
REVDAT   1   01-APR-08 3CEP    0                                                
JRNL        AUTH   T.R.BARENDS,T.DOMRATCHEVA,V.KULIK,L.BLUMENSTEIN,D.NIKS,      
JRNL        AUTH 2 M.F.DUNN,I.SCHLICHTING                                       
JRNL        TITL   STRUCTURE AND MECHANISTIC IMPLICATIONS OF A TRYPTOPHAN       
JRNL        TITL 2 SYNTHASE QUINONOID INTERMEDIATE.                             
JRNL        REF    CHEMBIOCHEM                   V.   9  1024 2008              
JRNL        REFN                   ISSN 1439-4227                               
JRNL        PMID   18351684                                                     
JRNL        DOI    10.1002/CBIC.200700703                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 23.70                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 39110                          
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) : 0.200                           
REMARK   3   R VALUE            (WORKING SET) : 0.198                           
REMARK   3   FREE R VALUE                     : 0.238                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2017                            
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) : 2.10                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.15                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2833                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 100.0                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2600                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 138                          
REMARK   3   BIN FREE R VALUE                    : 0.3190                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4936                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 52                                      
REMARK   3   SOLVENT ATOMS            : 278                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 21.75                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -2.21000                                             
REMARK   3    B22 (A**2) : 3.09000                                              
REMARK   3    B33 (A**2) : -0.88000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.02000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.228         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.187         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.143         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.466         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.933                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.904                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  5086 ; 0.008 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  6900 ; 1.158 ; 1.981       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   657 ; 5.526 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   214 ;37.185 ;24.206       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   814 ;13.368 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    31 ;15.804 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   769 ; 0.068 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3884 ; 0.003 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  2700 ; 0.193 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  3532 ; 0.299 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   387 ; 0.128 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     7 ; 0.222 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    49 ; 0.169 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    10 ; 0.145 ; 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):  3274 ; 0.385 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  5212 ; 0.734 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1812 ; 1.189 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1688 ; 2.014 ; 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                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3CEP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 04-MAR-08.                  
REMARK 100 THE DEPOSITION ID IS D_1000046684.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 25-FEB-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.8                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X12C                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : DOUBLE-CRYSTAL MONOCHROMATOR       
REMARK 200                                   SI(111), BEAM FOCUSED BY A         
REMARK 200                                   TOROIDAL MIRROR                    
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 210                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 41128                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 24.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.9                               
REMARK 200  DATA REDUNDANCY                : 2.500                              
REMARK 200  R MERGE                    (I) : 0.11900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 6.7000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.20                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.34800                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.100                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: 1QOP                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.44                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.53                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 50MM BICINE (PH 7.8), 1MM EDTA, 5MM      
REMARK 280  DITHIOERYTHRITOL, 0.02MM PYRIDOXAL PHOSPHATE SOLUTION, 2MM          
REMARK 280  SPERMINE, AND 10% PEG 8000, VAPOR DIFFUSION, HANGING DROP,          
REMARK 280  TEMPERATURE 293K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       92.01200            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       29.45400            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       92.01200            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       29.45400            
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 13670 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 40770 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -289.3 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 350   BIOMT1   2 -1.000000  0.000000  0.000000      184.02400            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  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     ALA A   268                                                      
REMARK 465     GLY B   395                                                      
REMARK 465     GLU B   396                                                      
REMARK 465     ILE B   397                                                      
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     GLU A   2    CG   CD   OE1  OE2                                  
REMARK 470     ARG A  14    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG A  15    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LEU A 193    CG   CD1  CD2                                       
REMARK 470     HIS A 194    CG   ND1  CD2  CE1  NE2                             
REMARK 470     GLU A 218    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 243    CG   CD   CE   NZ                                   
REMARK 470     LYS A 249    CG   CD   CE   NZ                                   
REMARK 470     PHE B 280    CG   CD1  CD2  CE1  CE2  CZ                         
REMARK 470     LYS B 392    CG   CD   CE   NZ                                   
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    PHE A 212      109.37    102.34                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CS B 399  CS                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY B  54   O                                                      
REMARK 620 2 PRO B  56   O    65.2                                              
REMARK 620 3 HOH B 456   O    87.5  72.9                                        
REMARK 620 4 HOH B 566   O    52.1  83.9  44.7                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CS B 400  CS                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 THR B  66   O                                                      
REMARK 620 2 THR B  69   O    73.5                                              
REMARK 620 3 THR B  71   O    83.0  89.9                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CS B 398  CS                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY B 232   O                                                      
REMARK 620 2 GLY B 268   O   165.2                                              
REMARK 620 3 LEU B 304   O    91.2  85.4                                        
REMARK 620 4 PHE B 306   O   107.0  86.0  74.7                                  
REMARK 620 5 SER B 308   O    72.2 119.6 136.1  72.2                            
REMARK 620 6 HOH B 562   O    92.4  82.0 143.4 137.9  79.2                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CS B 398                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CS B 399                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CS B 400                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE G3P A 269                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IDM A 270                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP B 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MH6 B 402                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IDM B 403                 
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THIS IS AN INADVERTENT MUTATION.                                     
DBREF  3CEP A    1   268  UNP    P00929   TRPA_SALTY       1    268             
DBREF  3CEP B    2   397  UNP    P0A2K1   TRPB_SALTY       2    397             
SEQADV 3CEP ILE A   87  UNP  P00929    LEU    87 SEE REMARK 999                 
SEQRES   1 A  268  MET GLU ARG TYR GLU ASN LEU PHE ALA GLN LEU ASN ASP          
SEQRES   2 A  268  ARG ARG GLU GLY ALA PHE VAL PRO PHE VAL THR LEU GLY          
SEQRES   3 A  268  ASP PRO GLY ILE GLU GLN SER LEU LYS ILE ILE ASP THR          
SEQRES   4 A  268  LEU ILE ASP ALA GLY ALA ASP ALA LEU GLU LEU GLY VAL          
SEQRES   5 A  268  PRO PHE SER ASP PRO LEU ALA ASP GLY PRO THR ILE GLN          
SEQRES   6 A  268  ASN ALA ASN LEU ARG ALA PHE ALA ALA GLY VAL THR PRO          
SEQRES   7 A  268  ALA GLN CYS PHE GLU MET LEU ALA ILE ILE ARG GLU LYS          
SEQRES   8 A  268  HIS PRO THR ILE PRO ILE GLY LEU LEU MET TYR ALA ASN          
SEQRES   9 A  268  LEU VAL PHE ASN ASN GLY ILE ASP ALA PHE TYR ALA ARG          
SEQRES  10 A  268  CYS GLU GLN VAL GLY VAL ASP SER VAL LEU VAL ALA ASP          
SEQRES  11 A  268  VAL PRO VAL GLU GLU SER ALA PRO PHE ARG GLN ALA ALA          
SEQRES  12 A  268  LEU ARG HIS ASN ILE ALA PRO ILE PHE ILE CYS PRO PRO          
SEQRES  13 A  268  ASN ALA ASP ASP ASP LEU LEU ARG GLN VAL ALA SER TYR          
SEQRES  14 A  268  GLY ARG GLY TYR THR TYR LEU LEU SER ARG SER GLY VAL          
SEQRES  15 A  268  THR GLY ALA GLU ASN ARG GLY ALA LEU PRO LEU HIS HIS          
SEQRES  16 A  268  LEU ILE GLU LYS LEU LYS GLU TYR HIS ALA ALA PRO ALA          
SEQRES  17 A  268  LEU GLN GLY PHE GLY ILE SER SER PRO GLU GLN VAL SER          
SEQRES  18 A  268  ALA ALA VAL ARG ALA GLY ALA ALA GLY ALA ILE SER GLY          
SEQRES  19 A  268  SER ALA ILE VAL LYS ILE ILE GLU LYS ASN LEU ALA SER          
SEQRES  20 A  268  PRO LYS GLN MET LEU ALA GLU LEU ARG SER PHE VAL SER          
SEQRES  21 A  268  ALA MET LYS ALA ALA SER ARG ALA                              
SEQRES   1 B  396  THR THR LEU LEU ASN PRO TYR PHE GLY GLU PHE GLY GLY          
SEQRES   2 B  396  MET TYR VAL PRO GLN ILE LEU MET PRO ALA LEU ASN GLN          
SEQRES   3 B  396  LEU GLU GLU ALA PHE VAL SER ALA GLN LYS ASP PRO GLU          
SEQRES   4 B  396  PHE GLN ALA GLN PHE ALA ASP LEU LEU LYS ASN TYR ALA          
SEQRES   5 B  396  GLY ARG PRO THR ALA LEU THR LYS CYS GLN ASN ILE THR          
SEQRES   6 B  396  ALA GLY THR ARG THR THR LEU TYR LEU LYS ARG GLU ASP          
SEQRES   7 B  396  LEU LEU HIS GLY GLY ALA HIS LYS THR ASN GLN VAL LEU          
SEQRES   8 B  396  GLY GLN ALA LEU LEU ALA LYS ARG MET GLY LYS SER GLU          
SEQRES   9 B  396  ILE ILE ALA GLU THR GLY ALA GLY GLN HIS GLY VAL ALA          
SEQRES  10 B  396  SER ALA LEU ALA SER ALA LEU LEU GLY LEU LYS CYS ARG          
SEQRES  11 B  396  ILE TYR MET GLY ALA LYS ASP VAL GLU ARG GLN SER PRO          
SEQRES  12 B  396  ASN VAL PHE ARG MET ARG LEU MET GLY ALA GLU VAL ILE          
SEQRES  13 B  396  PRO VAL HIS SER GLY SER ALA THR LEU LYS ASP ALA CYS          
SEQRES  14 B  396  ASN GLU ALA LEU ARG ASP TRP SER GLY SER TYR GLU THR          
SEQRES  15 B  396  ALA HIS TYR MET LEU GLY THR ALA ALA GLY PRO HIS PRO          
SEQRES  16 B  396  TYR PRO THR ILE VAL ARG GLU PHE GLN ARG MET ILE GLY          
SEQRES  17 B  396  GLU GLU THR LYS ALA GLN ILE LEU ASP LYS GLU GLY ARG          
SEQRES  18 B  396  LEU PRO ASP ALA VAL ILE ALA CYS VAL GLY GLY GLY SER          
SEQRES  19 B  396  ASN ALA ILE GLY MET PHE ALA ASP PHE ILE ASN ASP THR          
SEQRES  20 B  396  SER VAL GLY LEU ILE GLY VAL GLU PRO GLY GLY HIS GLY          
SEQRES  21 B  396  ILE GLU THR GLY GLU HIS GLY ALA PRO LEU LYS HIS GLY          
SEQRES  22 B  396  ARG VAL GLY ILE TYR PHE GLY MET LYS ALA PRO MET MET          
SEQRES  23 B  396  GLN THR ALA ASP GLY GLN ILE GLU GLU SER TYR SER ILE          
SEQRES  24 B  396  SER ALA GLY LEU ASP PHE PRO SER VAL GLY PRO GLN HIS          
SEQRES  25 B  396  ALA TYR LEU ASN SER ILE GLY ARG ALA ASP TYR VAL SER          
SEQRES  26 B  396  ILE THR ASP ASP GLU ALA LEU GLU ALA PHE LYS THR LEU          
SEQRES  27 B  396  CYS ARG HIS GLU GLY ILE ILE PRO ALA LEU GLU SER SER          
SEQRES  28 B  396  HIS ALA LEU ALA HIS ALA LEU LYS MET MET ARG GLU GLN          
SEQRES  29 B  396  PRO GLU LYS GLU GLN LEU LEU VAL VAL ASN LEU SER GLY          
SEQRES  30 B  396  ARG GLY ASP LYS ASP ILE PHE THR VAL HIS ASP ILE LEU          
SEQRES  31 B  396  LYS ALA ARG GLY GLU ILE                                      
HET    G3P  A 269      10                                                       
HET    IDM  A 270       9                                                       
HET     CS  B 398       1                                                       
HET     CS  B 399       1                                                       
HET     CS  B 400       1                                                       
HET    PLP  B 401      15                                                       
HET    MH6  B 402       6                                                       
HET    IDM  B 403       9                                                       
HETNAM     G3P SN-GLYCEROL-3-PHOSPHATE                                          
HETNAM     IDM INDOLINE                                                         
HETNAM      CS CESIUM ION                                                       
HETNAM     PLP PYRIDOXAL-5'-PHOSPHATE                                           
HETNAM     MH6 3-HYDROXY-2-IMINOPROPANOIC ACID                                  
HETSYN     PLP VITAMIN B6 PHOSPHATE                                             
FORMUL   3  G3P    C3 H9 O6 P                                                   
FORMUL   4  IDM    2(C8 H9 N)                                                   
FORMUL   5   CS    3(CS 1+)                                                     
FORMUL   8  PLP    C8 H10 N O6 P                                                
FORMUL   9  MH6    C3 H5 N O3                                                   
FORMUL  11  HOH   *278(H2 O)                                                    
HELIX    1   1 GLU A    2  ARG A   14  1                                  13    
HELIX    2   2 GLY A   29  ALA A   43  1                                  15    
HELIX    3   3 GLY A   61  ALA A   74  1                                  14    
HELIX    4   4 THR A   77  HIS A   92  1                                  16    
HELIX    5   5 TYR A  102  ASN A  108  1                                   7    
HELIX    6   6 GLY A  110  GLY A  122  1                                  13    
HELIX    7   7 PRO A  132  GLU A  135  5                                   4    
HELIX    8   8 SER A  136  HIS A  146  1                                  11    
HELIX    9   9 ASP A  159  GLY A  170  1                                  12    
HELIX   10  10 LEU A  193  TYR A  203  1                                  11    
HELIX   11  11 SER A  216  ALA A  226  1                                  11    
HELIX   12  12 GLY A  234  ASN A  244  1                                  11    
HELIX   13  13 SER A  247  ALA A  265  1                                  19    
HELIX   14  14 PRO B   18  ILE B   20  5                                   3    
HELIX   15  15 LEU B   21  LYS B   37  1                                  17    
HELIX   16  16 ASP B   38  TYR B   52  1                                  15    
HELIX   17  17 ASP B   79  LEU B   81  5                                   3    
HELIX   18  18 LYS B   87  MET B  101  1                                  15    
HELIX   19  19 GLY B  113  GLY B  127  1                                  15    
HELIX   20  20 ALA B  136  GLN B  142  1                                   7    
HELIX   21  21 GLN B  142  MET B  152  1                                  11    
HELIX   22  22 THR B  165  GLY B  179  1                                  15    
HELIX   23  23 PRO B  196  PHE B  204  1                                   9    
HELIX   24  24 ARG B  206  GLY B  221  1                                  16    
HELIX   25  25 GLY B  234  ALA B  242  1                                   9    
HELIX   26  26 ASP B  243  ILE B  245  5                                   3    
HELIX   27  27 GLY B  261  GLY B  265  5                                   5    
HELIX   28  28 ALA B  269  GLY B  274  1                                   6    
HELIX   29  29 GLY B  310  ILE B  319  1                                  10    
HELIX   30  30 ASP B  329  GLY B  344  1                                  16    
HELIX   31  31 ALA B  348  GLN B  365  1                                  18    
HELIX   32  32 GLY B  380  LYS B  382  5                                   3    
HELIX   33  33 ASP B  383  ARG B  394  1                                  12    
SHEET    1   A 9 ALA A 149  ILE A 151  0                                        
SHEET    2   A 9 SER A 125  VAL A 128  1  N  VAL A 126   O  ILE A 151           
SHEET    3   A 9 ILE A  97  MET A 101  1  N  MET A 101   O  LEU A 127           
SHEET    4   A 9 LEU A  48  GLY A  51  1  N  LEU A  48   O  GLY A  98           
SHEET    5   A 9 ALA A  18  THR A  24  1  N  VAL A  23   O  GLY A  51           
SHEET    6   A 9 GLY A 230  SER A 233  1  O  ALA A 231   N  VAL A  20           
SHEET    7   A 9 ALA A 208  GLY A 211  1  N  GLN A 210   O  ILE A 232           
SHEET    8   A 9 THR A 174  LEU A 177  1  N  LEU A 176   O  LEU A 209           
SHEET    9   A 9 ILE A 153  CYS A 154  1  N  CYS A 154   O  TYR A 175           
SHEET    1   B 4 TYR B   8  PHE B   9  0                                        
SHEET    2   B 4 PHE B  12  TYR B  16 -1  O  PHE B  12   N  PHE B   9           
SHEET    3   B 4 GLY B 281  MET B 286 -1  O  LYS B 283   N  GLY B  13           
SHEET    4   B 4 ARG B 275  TYR B 279 -1  N  ARG B 275   O  MET B 286           
SHEET    1   C 6 LEU B  59  LYS B  61  0                                        
SHEET    2   C 6 THR B  71  ARG B  77 -1  O  LEU B  75   N  THR B  60           
SHEET    3   C 6 GLN B 370  LEU B 376  1  O  LEU B 372   N  THR B  72           
SHEET    4   C 6 ALA B 226  CYS B 230  1  N  ILE B 228   O  VAL B 373           
SHEET    5   C 6 GLY B 251  GLY B 259  1  O  GLY B 251   N  VAL B 227           
SHEET    6   C 6 ALA B 322  THR B 328  1  O  ILE B 327   N  GLY B 258           
SHEET    1   D 4 GLU B 155  VAL B 159  0                                        
SHEET    2   D 4 LYS B 129  GLY B 135  1  N  ILE B 132   O  ILE B 157           
SHEET    3   D 4 GLU B 105  THR B 110  1  N  ALA B 108   O  TYR B 133           
SHEET    4   D 4 ALA B 184  TYR B 186  1  O  HIS B 185   N  GLU B 105           
LINK         C1  G3P A 269                 N1  IDM A 270     1555   1555  1.50  
LINK         C4A PLP B 401                 N   MH6 B 402     1555   1555  1.38  
LINK         CB  MH6 B 402                 N1  IDM B 403     1555   1555  1.50  
LINK         O   GLY B  54                CS    CS B 399     1555   1555  3.26  
LINK         O   PRO B  56                CS    CS B 399     1555   1555  3.06  
LINK         O   THR B  66                CS    CS B 400     1555   1555  3.03  
LINK         O   THR B  69                CS    CS B 400     1555   1555  3.08  
LINK         O   THR B  71                CS    CS B 400     1555   1555  3.13  
LINK         O   GLY B 232                CS    CS B 398     1555   1555  2.98  
LINK         O   GLY B 268                CS    CS B 398     1555   1555  3.08  
LINK         O   LEU B 304                CS    CS B 398     1555   1555  3.48  
LINK         O   PHE B 306                CS    CS B 398     1555   1555  2.96  
LINK         O   SER B 308                CS    CS B 398     1555   1555  3.28  
LINK        CS    CS B 398                 O   HOH B 562     1555   1555  2.53  
LINK        CS    CS B 399                 O   HOH B 456     1555   1555  3.50  
LINK        CS    CS B 399                 O   HOH B 566     1555   1555  3.46  
CISPEP   1 ASP A   27    PRO A   28          0         0.87                     
CISPEP   2 ARG B   55    PRO B   56          0        -5.45                     
CISPEP   3 HIS B  195    PRO B  196          0         8.50                     
SITE     1 AC1  5 GLY B 232  GLY B 268  LEU B 304  PHE B 306                    
SITE     2 AC1  5 SER B 308                                                     
SITE     1 AC2  2 GLY B  54  PRO B  56                                          
SITE     1 AC3  3 THR B  66  THR B  69  THR B  71                               
SITE     1 AC4 10 GLU A  49  ILE A  64  TYR A 175  THR A 183                    
SITE     2 AC4 10 GLY A 184  PHE A 212  GLY A 213  ILE A 232                    
SITE     3 AC4 10 GLY A 234  SER A 235                                          
SITE     1 AC5  6 PHE A  22  GLU A  49  ASP A  60  LEU A 100                    
SITE     2 AC5  6 TYR A 175  PHE A 212                                          
SITE     1 AC6 14 HIS B  86  LYS B  87  ALA B 112  GLN B 114                    
SITE     2 AC6 14 THR B 190  CYS B 230  GLY B 232  GLY B 233                    
SITE     3 AC6 14 GLY B 234  SER B 235  ASN B 236  GLY B 303                    
SITE     4 AC6 14 GLU B 350  SER B 377                                          
SITE     1 AC7  9 LYS B  87  THR B 110  GLY B 111  ALA B 112                    
SITE     2 AC7  9 GLY B 113  GLN B 114  HIS B 115  LEU B 166                    
SITE     3 AC7  9 GLY B 303                                                     
SITE     1 AC8  5 LYS B  87  LEU B 166  THR B 190  GLY B 232                    
SITE     2 AC8  5 GLY B 233                                                     
CRYST1  184.024   58.908   67.086  90.00  95.19  90.00 C 1 2 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      0.005434  0.000000  0.000494        0.00000                         
SCALE2      0.000000  0.016976  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014968        0.00000