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Database: PDB
Entry: 2RH9
LinkDB: 2RH9
Original site: 2RH9 
HEADER    LYASE                                   08-OCT-07   2RH9              
TITLE     TRYPTOPHAN SYNTHASE COMPLEXED WITH IGP, INTERNAL ALDIMINE, PH 9.0     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRYPTOPHAN SYNTHASE ALPHA CHAIN;                           
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: TRYPTOPHAN SYNTHASE, ALPHA CHAIN;                          
COMPND   5 EC: 4.2.1.20;                                                        
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: TRYPTOPHAN SYNTHASE BETA CHAIN;                            
COMPND   9 CHAIN: B;                                                            
COMPND  10 FRAGMENT: TRYPTOPHAN SYNTHASE, BETA CHAIN;                           
COMPND  11 EC: 4.2.1.20;                                                        
COMPND  12 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM;                         
SOURCE   3 ORGANISM_TAXID: 602;                                                 
SOURCE   4 GENE: TRPA, STM1727;                                                 
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, STM1726;                                                 
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    AROMATIC AMINO ACID BIOSYNTHESIS, TRYPTOPHAN BIOSYNTHESIS, CARBON-    
KEYWDS   2 OXYGEN LYASE, AMINOACID BIOSYNTHESIS, LYASE, ALLOSTERIC ENZYME,      
KEYWDS   3 PYRIDOXAL PHOSPHATE, AMINO-ACID BIOSYNTHESIS                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    V.KULIK,T.R.M.BARENDS,I.SCHLICHTING                                   
REVDAT   3   13-JUL-11 2RH9    1       VERSN                                    
REVDAT   2   24-FEB-09 2RH9    1       VERSN                                    
REVDAT   1   06-NOV-07 2RH9    0                                                
JRNL        AUTH   V.KULIK,T.R.M.BARENDS,I.SCHLICHTING                          
JRNL        TITL   TRYPTOPHAN SYNTHASE COMPLEXED WITH IGP, INTERNAL ALDIMINE,   
JRNL        TITL 2 PH 9.0.                                                      
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 43.73                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 73246                          
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) : 0.173                           
REMARK   3   R VALUE            (WORKING SET) : 0.172                           
REMARK   3   FREE R VALUE                     : 0.200                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3922                            
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) : 1.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.74                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 5384                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2390                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 296                          
REMARK   3   BIN FREE R VALUE                    : 0.2430                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4895                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 35                                      
REMARK   3   SOLVENT ATOMS            : 483                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 19.80                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.99                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.80000                                             
REMARK   3    B22 (A**2) : 2.19000                                              
REMARK   3    B33 (A**2) : -1.46000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.41000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.097         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.095         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.068         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.066         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.963                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.951                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  5082 ; 0.011 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  4660 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  6888 ; 1.426 ; 1.979       
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 10841 ; 0.924 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   650 ; 5.407 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   219 ;35.480 ;24.110       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   836 ;13.281 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    32 ;19.246 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   762 ; 0.075 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  5720 ; 0.005 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   993 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1028 ; 0.219 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  4620 ; 0.185 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  2476 ; 0.177 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  2725 ; 0.084 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   378 ; 0.131 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     3 ; 0.098 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):     7 ; 0.135 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    58 ; 0.227 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    11 ; 0.115 ; 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):  3236 ; 0.714 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1332 ; 0.180 ; 1.500       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  5164 ; 1.308 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1877 ; 2.090 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1724 ; 3.452 ; 4.500       
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 : 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: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS. PROGRAM CNS HAS ALSO BEEN USED IN REFINEMENT             
REMARK   4                                                                      
REMARK   4 2RH9 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-OCT-07.                  
REMARK 100 THE RCSB ID CODE IS RCSB044857.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 30-SEP-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 9.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-3                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.93000                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 77139                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 55.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.3                               
REMARK 200  DATA REDUNDANCY                : 2.400                              
REMARK 200  R MERGE                    (I) : 0.05500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.0100                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.80                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.31300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.460                              
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: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.63                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.54                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN: 50 MM BICINE PH 7.8, 10 MM NA   
REMARK 280  -EDTA, 1 MM DTE, 20 UM PLP. RESERVOIR: 50 MM BICINE PH 7.8, 5 MM    
REMARK 280  DTE, 5 MM NA-EDTA, 0.1 M PLP, 2 MM SPERMINE, 2 MM NAN3, 8-12% PEG   
REMARK 280  8000. CRYSTAL SOAKED IN 15% PEG 8000, 20% GLYCEROL, 23 MM IGP, PH   
REMARK 280  CONTROLLED AT PH 9.0 BEFORE FLASH-COOLING, VAPOR DIFFUSION,         
REMARK 280  HANGING DROP, 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       91.53550            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       29.64050            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       91.53550            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       29.64050            
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: 10950 ANGSTROM**2                         
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      183.07100            
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     ARG A   179                                                      
REMARK 465     SER A   180                                                      
REMARK 465     GLY A   181                                                      
REMARK 465     VAL A   182                                                      
REMARK 465     THR A   183                                                      
REMARK 465     GLY A   184                                                      
REMARK 465     ALA A   185                                                      
REMARK 465     GLU A   186                                                      
REMARK 465     ASN A   187                                                      
REMARK 465     ARG A   188                                                      
REMARK 465     GLY A   189                                                      
REMARK 465     ALA A   190                                                      
REMARK 465     LEU A   191                                                      
REMARK 465     PRO A   192                                                      
REMARK 465     MET B     1                                                      
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     PHE A 212    CG   CD1  CD2  CE1  CE2  CZ                         
REMARK 470     ASP B 305    CG   OD1  OD2                                       
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    30     O    HOH B   691              2.19            
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 157       31.13    -78.45                                   
REMARK 500    PHE A 212      111.18     93.63                                   
REMARK 500    SER B 308     -155.96   -138.77                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 429        DISTANCE =  5.13 ANGSTROMS                       
REMARK 525    HOH B 503        DISTANCE =  5.07 ANGSTROMS                       
REMARK 525    HOH B 512        DISTANCE =  5.11 ANGSTROMS                       
REMARK 525    HOH B 569        DISTANCE =  5.06 ANGSTROMS                       
REMARK 525    HOH B 622        DISTANCE =  5.16 ANGSTROMS                       
REMARK 525    HOH B 704        DISTANCE =  5.36 ANGSTROMS                       
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                              NA B 398  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY B 232   O                                                      
REMARK 620 2 PHE B 306   O   110.7                                              
REMARK 620 3 SER B 308   O    92.2  87.8                                        
REMARK 620 4 HOH B 425   O    85.4 161.9 100.1                                  
REMARK 620 5 HOH B 488   O   118.0  70.8 147.3  94.7                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA B 398                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IGP A 269                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP B 399                 
DBREF  2RH9 A    1   268  UNP    P00929   TRPA_SALTY       1    268             
DBREF  2RH9 B    1   397  UNP    P0A2K1   TRPB_SALTY       1    397             
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 LEU 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  397  MET THR THR LEU LEU ASN PRO TYR PHE GLY GLU PHE GLY          
SEQRES   2 B  397  GLY MET TYR VAL PRO GLN ILE LEU MET PRO ALA LEU ASN          
SEQRES   3 B  397  GLN LEU GLU GLU ALA PHE VAL SER ALA GLN LYS ASP PRO          
SEQRES   4 B  397  GLU PHE GLN ALA GLN PHE ALA ASP LEU LEU LYS ASN TYR          
SEQRES   5 B  397  ALA GLY ARG PRO THR ALA LEU THR LYS CYS GLN ASN ILE          
SEQRES   6 B  397  THR ALA GLY THR ARG THR THR LEU TYR LEU LYS ARG GLU          
SEQRES   7 B  397  ASP LEU LEU HIS GLY GLY ALA HIS LYS THR ASN GLN VAL          
SEQRES   8 B  397  LEU GLY GLN ALA LEU LEU ALA LYS ARG MET GLY LYS SER          
SEQRES   9 B  397  GLU ILE ILE ALA GLU THR GLY ALA GLY GLN HIS GLY VAL          
SEQRES  10 B  397  ALA SER ALA LEU ALA SER ALA LEU LEU GLY LEU LYS CYS          
SEQRES  11 B  397  ARG ILE TYR MET GLY ALA LYS ASP VAL GLU ARG GLN SER          
SEQRES  12 B  397  PRO ASN VAL PHE ARG MET ARG LEU MET GLY ALA GLU VAL          
SEQRES  13 B  397  ILE PRO VAL HIS SER GLY SER ALA THR LEU LYS ASP ALA          
SEQRES  14 B  397  CYS ASN GLU ALA LEU ARG ASP TRP SER GLY SER TYR GLU          
SEQRES  15 B  397  THR ALA HIS TYR MET LEU GLY THR ALA ALA GLY PRO HIS          
SEQRES  16 B  397  PRO TYR PRO THR ILE VAL ARG GLU PHE GLN ARG MET ILE          
SEQRES  17 B  397  GLY GLU GLU THR LYS ALA GLN ILE LEU ASP LYS GLU GLY          
SEQRES  18 B  397  ARG LEU PRO ASP ALA VAL ILE ALA CYS VAL GLY GLY GLY          
SEQRES  19 B  397  SER ASN ALA ILE GLY MET PHE ALA ASP PHE ILE ASN ASP          
SEQRES  20 B  397  THR SER VAL GLY LEU ILE GLY VAL GLU PRO GLY GLY HIS          
SEQRES  21 B  397  GLY ILE GLU THR GLY GLU HIS GLY ALA PRO LEU LYS HIS          
SEQRES  22 B  397  GLY ARG VAL GLY ILE TYR PHE GLY MET LYS ALA PRO MET          
SEQRES  23 B  397  MET GLN THR ALA ASP GLY GLN ILE GLU GLU SER TYR SER          
SEQRES  24 B  397  ILE SER ALA GLY LEU ASP PHE PRO SER VAL GLY PRO GLN          
SEQRES  25 B  397  HIS ALA TYR LEU ASN SER ILE GLY ARG ALA ASP TYR VAL          
SEQRES  26 B  397  SER ILE THR ASP ASP GLU ALA LEU GLU ALA PHE LYS THR          
SEQRES  27 B  397  LEU CYS ARG HIS GLU GLY ILE ILE PRO ALA LEU GLU SER          
SEQRES  28 B  397  SER HIS ALA LEU ALA HIS ALA LEU LYS MET MET ARG GLU          
SEQRES  29 B  397  GLN PRO GLU LYS GLU GLN LEU LEU VAL VAL ASN LEU SER          
SEQRES  30 B  397  GLY ARG GLY ASP LYS ASP ILE PHE THR VAL HIS ASP ILE          
SEQRES  31 B  397  LEU LYS ALA ARG GLY GLU ILE                                  
HET     NA  B 398       1                                                       
HET    IGP  A 269      19                                                       
HET    PLP  B 399      15                                                       
HETNAM      NA SODIUM ION                                                       
HETNAM     IGP INDOLE-3-GLYCEROL PHOSPHATE                                      
HETNAM     PLP PYRIDOXAL-5'-PHOSPHATE                                           
HETSYN     PLP VITAMIN B6 PHOSPHATE                                             
FORMUL   3   NA    NA 1+                                                        
FORMUL   4  IGP    C11 H14 N O6 P                                               
FORMUL   5  PLP    C8 H10 N O6 P                                                
FORMUL   6  HOH   *483(H2 O)                                                    
HELIX    1   1 MET A    1  ARG A   14  1                                  14    
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  TYR B  181  1                                  17    
HELIX   23  23 PRO B  196  ARG B  206  1                                  11    
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 SER B  301  ASP B  305  5                                   5    
HELIX   30  30 GLY B  310  ILE B  319  1                                  10    
HELIX   31  31 ASP B  329  GLY B  344  1                                  16    
HELIX   32  32 ALA B  348  GLN B  365  1                                  18    
HELIX   33  33 GLY B  380  LYS B  382  5                                   3    
HELIX   34  34 ASP B  383  GLY B  395  1                                  13    
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  THR A 174   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  TYR B 279   O  MET B 282           
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  GLN B 370   N  THR B  72           
SHEET    4   C 6 ALA B 226  CYS B 230  1  N  ILE B 228   O  ASN B 375           
SHEET    5   C 6 GLY B 251  GLY B 259  1  O  ILE B 253   N  VAL B 227           
SHEET    6   C 6 ASP B 323  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  GLU B 109  1  N  ILE B 106   O  LYS B 129           
SHEET    4   D 4 ALA B 184  TYR B 186  1  O  HIS B 185   N  ILE B 107           
LINK         O   GLY B 232                NA    NA B 398     1555   1555  2.26  
LINK         O   PHE B 306                NA    NA B 398     1555   1555  2.38  
LINK         O   SER B 308                NA    NA B 398     1555   1555  2.34  
LINK        NA    NA B 398                 O   HOH B 425     1555   1555  2.46  
LINK        NA    NA B 398                 O   HOH B 488     1555   1555  2.47  
LINK         NZ  LYS B  87                 C4A PLP B 399     1555   1555  1.39  
CISPEP   1 ASP A   27    PRO A   28          0         0.19                     
CISPEP   2 ARG B   55    PRO B   56          0        -3.35                     
CISPEP   3 HIS B  195    PRO B  196          0         7.71                     
SITE     1 AC1  5 GLY B 232  PHE B 306  SER B 308  HOH B 425                    
SITE     2 AC1  5 HOH B 488                                                     
SITE     1 AC2 13 GLU A  49  ASP A  60  LEU A 100  ILE A 153                    
SITE     2 AC2 13 TYR A 175  PHE A 212  GLY A 213  GLY A 234                    
SITE     3 AC2 13 SER A 235  HOH A 298  HOH A 333  HOH A 424                    
SITE     4 AC2 13 HOH A 425                                                     
SITE     1 AC3 17 HIS B  86  LYS B  87  GLN B 114  THR B 190                    
SITE     2 AC3 17 GLY B 232  GLY B 233  GLY B 234  SER B 235                    
SITE     3 AC3 17 ASN B 236  GLY B 303  GLU B 350  SER B 377                    
SITE     4 AC3 17 GLY B 378  HOH B 405  HOH B 541  HOH B 620                    
SITE     5 AC3 17 HOH B 708                                                     
CRYST1  183.071   59.281   67.345  90.00  94.67  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      0.005462  0.000000  0.000446        0.00000                         
SCALE2      0.000000  0.016869  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014898        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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