HEADER    TRANSFERASE                             12-DEC-03   1RV3               
TITLE     E75L MUTANT OF RABBIT CYTOSOLIC SERINE HYDROXYMETHYLTRANSFERASE,       
TITLE    2 COMPLEX WITH GLYCINE                                                  
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: SERINE HYDROXYMETHYLTRANSFERASE, CYTOSOLIC;                 
COMPND   3 CHAIN: A, B;                                                          
COMPND   4 SYNONYM: SERINE METHYLASE, GLYCINE HYDROXYMETHYLTRANSFERASE, SHMT;    
COMPND   5 EC: 2.1.2.1;                                                          
COMPND   6 ENGINEERED: YES;                                                      
COMPND   7 MUTATION: YES                                                         
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: ORYCTOLAGUS CUNICULUS;                           
SOURCE   3 ORGANISM_COMMON: RABBIT;                                              
SOURCE   4 ORGANISM_TAXID: 9986;                                                 
SOURCE   5 GENE: SHMT1;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                               
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET22B                                     
KEYWDS    ONE-CARBON METABOLISM, TRANSFERASE                                     
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    D.M.SZEBENYI,F.N.MUSAYEV,M.L.DI SALVO,M.K.SAFO,V.SCHIRCH               
REVDAT   5   23-AUG-23 1RV3    1       REMARK                                    
REVDAT   4   27-OCT-21 1RV3    1       REMARK SEQADV LINK                        
REVDAT   3   13-JUL-11 1RV3    1       VERSN                                     
REVDAT   2   24-FEB-09 1RV3    1       VERSN                                     
REVDAT   1   15-JUN-04 1RV3    0                                                 
JRNL        AUTH   D.M.SZEBENYI,F.N.MUSAYEV,M.L.DI SALVO,M.K.SAFO,V.SCHIRCH      
JRNL        TITL   SERINE HYDROXYMETHYLTRANSFERASE: ROLE OF GLU75 AND EVIDENCE   
JRNL        TITL 2 THAT SERINE IS CLEAVED BY A RETROALDOL MECHANISM.             
JRNL        REF    BIOCHEMISTRY                  V.  43  6865 2004               
JRNL        REFN                   ISSN 0006-2960                                
JRNL        PMID   15170323                                                      
JRNL        DOI    10.1021/BI049791Y                                             
REMARK   2                                                                       
REMARK   2 RESOLUTION.    2.40 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : CNS 1.1                                               
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-               
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,               
REMARK   3               : READ,RICE,SIMONSON,WARREN                             
REMARK   3                                                                       
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                     
REMARK   3                                                                       
REMARK   3  DATA USED IN REFINEMENT.                                             
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.88                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 2595470.560                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                          
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.5                            
REMARK   3   NUMBER OF REFLECTIONS             : 41555                           
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 SET) : 0.224                            
REMARK   3   FREE R VALUE                     : 0.255                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 2087                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.006                            
REMARK   3                                                                       
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                   
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                             
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.40                          
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.55                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.20                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 6495                          
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3160                        
REMARK   3   BIN FREE R VALUE                    : 0.3640                        
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.10                          
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 352                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.019                         
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 7184                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 45                                       
REMARK   3   SOLVENT ATOMS            : 86                                       
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : 51.80                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 48.60                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                        
REMARK   3    B11 (A**2) : -5.98000                                              
REMARK   3    B22 (A**2) : -5.98000                                              
REMARK   3    B33 (A**2) : 11.96000                                              
REMARK   3    B12 (A**2) : 0.00000                                               
REMARK   3    B13 (A**2) : 0.00000                                               
REMARK   3    B23 (A**2) : 0.00000                                               
REMARK   3                                                                       
REMARK   3  ESTIMATED COORDINATE ERROR.                                          
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.34                             
REMARK   3   ESD FROM SIGMAA              (A) : 0.35                             
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                             
REMARK   3                                                                       
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                          
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.40                             
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.41                             
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                    
REMARK   3   BOND LENGTHS                 (A) : 0.007                            
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 21.80                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.770                            
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL MODEL : GROUP                                      
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                 
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                  
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                  
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                  
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                  
REMARK   3                                                                       
REMARK   3  BULK SOLVENT MODELING.                                               
REMARK   3   METHOD USED : FLAT MODEL                                            
REMARK   3   KSOL        : 0.31                                                  
REMARK   3   BSOL        : 31.75                                                 
REMARK   3                                                                       
REMARK   3  NCS MODEL : NULL                                                     
REMARK   3                                                                       
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT           
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                  
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                  
REMARK   3                                                                       
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                               
REMARK   3  PARAMETER FILE  2  : PLS.PARAM                                       
REMARK   3  PARAMETER FILE  3  : ION.PARAM                                       
REMARK   3  PARAMETER FILE  4  : WATER_REP.PARAM                                 
REMARK   3  PARAMETER FILE  5  : NULL                                            
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                     
REMARK   3  TOPOLOGY FILE  2   : PLS.TOP                                         
REMARK   3  TOPOLOGY FILE  3   : ION.TOP                                         
REMARK   3  TOPOLOGY FILE  4   : WATER.TOP                                       
REMARK   3  TOPOLOGY FILE  5   : NULL                                            
REMARK   3                                                                       
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                       
REMARK   4                                                                       
REMARK   4 1RV3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-DEC-03.                   
REMARK 100 THE DEPOSITION ID IS D_1000021060.                                    
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 06-FEB-03                           
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                               
REMARK 200  PH                             : 6.6                                 
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                   
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : Y                                   
REMARK 200  RADIATION SOURCE               : CHESS                               
REMARK 200  BEAMLINE                       : A1                                  
REMARK 200  X-RAY GENERATOR MODEL          : NULL                                
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9363                              
REMARK 200  MONOCHROMATOR                  : SI 111, BENT TRIANGLE               
REMARK 200  OPTICS                         : WHITE BEAM MIRROR, FOCUSSING        
REMARK 200                                   MONOCHROMATIC MIRROR                
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : CCD                                 
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 210                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DPS, MOSFLM                         
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                        
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 42006                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.400                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 48.900                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.8                                
REMARK 200  DATA REDUNDANCY                : 13.00                               
REMARK 200  R MERGE                    (I) : NULL                                
REMARK 200  R SYM                      (I) : 0.10000                             
REMARK 200   FOR THE DATA SET  : 6.0000                              
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.53                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.7                                
REMARK 200  DATA REDUNDANCY IN SHELL       : 12.20                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                                
REMARK 200  R SYM FOR SHELL            (I) : 0.56600                             
REMARK 200   FOR SHELL         : 1.300                               
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                               
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT         
REMARK 200 SOFTWARE USED: MOLREP                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1CJ0                                        
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 51.91                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.58                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, KCL, POTASSIUM PHOSPHATE, PH    
REMARK 280  6.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298.0K               
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2                         
REMARK 290                                                                       
REMARK 290      SYMOP   SYMMETRY                                                 
REMARK 290     NNNMMM   OPERATOR                                                 
REMARK 290       1555   X,Y,Z                                                    
REMARK 290       2555   -X,-Y,Z+1/2                                              
REMARK 290       3555   -Y+1/2,X+1/2,Z+1/4                                       
REMARK 290       4555   Y+1/2,-X+1/2,Z+3/4                                       
REMARK 290       5555   -X+1/2,Y+1/2,-Z+1/4                                      
REMARK 290       6555   X+1/2,-Y+1/2,-Z+3/4                                      
REMARK 290       7555   Y,X,-Z                                                   
REMARK 290       8555   -Y,-X,-Z+1/2                                             
REMARK 290                                                                       
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                      
REMARK 290           MMM -> TRANSLATION VECTOR                                   
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                             
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM              
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                 
REMARK 290 RELATED MOLECULES.                                                    
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       79.14500             
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       57.46000             
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       57.46000             
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       39.57250             
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       57.46000             
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       57.46000             
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000      118.71750             
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       57.46000             
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       57.46000             
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       39.57250             
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       57.46000             
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       57.46000             
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000      118.71750             
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000             
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       79.14500             
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 300 REMARK: THE ASYMMETRIC UNIT CONTAINS A HOMODIMER. THE BIOLOGICAL      
REMARK 300 ASSEMBLY IS A TETRAMER CONSISTING OF A PAIR OF DIMERS. THE SECOND     
REMARK 300 DIMER IS GENERATED BY THE OPERATION: Y,X,1-Z.                         
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 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  0.000000  1.000000  0.000000        0.00000             
REMARK 350   BIOMT2   2  1.000000  0.000000  0.000000        0.00000             
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      158.29000             
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     ALA A     2                                                       
REMARK 465     THR A     3                                                       
REMARK 465     ALA A     4                                                       
REMARK 465     VAL A     5                                                       
REMARK 465     ASN A     6                                                       
REMARK 465     GLY A     7                                                       
REMARK 465     ALA A     8                                                       
REMARK 465     PRO A     9                                                       
REMARK 465     ARG A    10                                                       
REMARK 465     ASP A    11                                                       
REMARK 465     ALA A    12                                                       
REMARK 465     ALA A    13                                                       
REMARK 465     LEU A    14                                                       
REMARK 465     VAL A   276                                                       
REMARK 465     ASP A   277                                                       
REMARK 465     PRO A   278                                                       
REMARK 465     LYS A   279                                                       
REMARK 465     THR A   280                                                       
REMARK 465     GLY A   281                                                       
REMARK 465     LYS A   282                                                       
REMARK 465     ALA B     2                                                       
REMARK 465     THR B     3                                                       
REMARK 465     ALA B     4                                                       
REMARK 465     VAL B     5                                                       
REMARK 465     ASN B     6                                                       
REMARK 465     GLY B     7                                                       
REMARK 465     ALA B     8                                                       
REMARK 465     PRO B     9                                                       
REMARK 465     ARG B    10                                                       
REMARK 465     ASP B    11                                                       
REMARK 465     ALA B    12                                                       
REMARK 465     ALA B    13                                                       
REMARK 465     LEU B    14                                                       
REMARK 465     PRO B   278                                                       
REMARK 465     LYS B   279                                                       
REMARK 465     THR B   280                                                       
REMARK 465     GLY B   281                                                       
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    LYS A 257   CD  -  CE  -  NZ  ANGL. DEV. =  17.0 DEGREES           
REMARK 500    ARG A 460   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.2 DEGREES           
REMARK 500    LYS B 257   CD  -  CE  -  NZ  ANGL. DEV. =  13.9 DEGREES           
REMARK 500    ARG B 460   NE  -  CZ  -  NH1 ANGL. DEV. =  -3.2 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    PRO A 108       -7.84    -56.45                                    
REMARK 500    GLU A 133      156.07     75.45                                    
REMARK 500    CYS A 204       69.88   -152.05                                    
REMARK 500    HIS A 256     -141.91    -96.58                                    
REMARK 500    LYS A 257     -130.51     57.07                                    
REMARK 500    ASN A 356     -143.52   -130.47                                    
REMARK 500    ASP A 392      114.25     16.29                                    
REMARK 500    GLN A 459      -19.41    -47.21                                    
REMARK 500    PRO A 482      -78.80    -27.88                                    
REMARK 500    PRO B 108       -8.39    -56.37                                    
REMARK 500    GLU B 133      155.36     76.57                                    
REMARK 500    CYS B 204       70.94   -152.26                                    
REMARK 500    HIS B 256     -142.80    -97.19                                    
REMARK 500    LYS B 257     -130.61     57.15                                    
REMARK 500    VAL B 276     -129.98   -122.54                                    
REMARK 500    ASN B 356     -142.37   -129.75                                    
REMARK 500    ASP B 392      114.17     16.24                                    
REMARK 500    PRO B 482       80.70    -58.01                                    
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 PO4 A 501                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC2                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 B 601                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC3                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GLY B 602                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC4                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP A 500                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC5                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP B 600                  
REMARK 900                                                                       
REMARK 900 RELATED ENTRIES                                                       
REMARK 900 RELATED ID: 1CJ0   RELATED DB: PDB                                    
REMARK 900 WILD-TYPE RABBIT CSHMT.                                               
REMARK 900 RELATED ID: 1LS3   RELATED DB: PDB                                    
REMARK 900 WILD-TYPE RABBIT CSHMT IN COMPLEX WITH GLYCINE AND 5-                 
REMARK 900 FORMYLTETRAHYDROPTEROYLTRIGLUTAMATE.                                  
DBREF  1RV3 A    2   484  UNP    P07511   GLYC_RABIT       1    483              
DBREF  1RV3 B    2   484  UNP    P07511   GLYC_RABIT       1    483              
SEQADV 1RV3 LEU A   75  UNP  P07511    GLU    74 ENGINEERED MUTATION             
SEQADV 1RV3 LEU B   75  UNP  P07511    GLU    74 ENGINEERED MUTATION             
SEQRES   1 A  483  ALA THR ALA VAL ASN GLY ALA PRO ARG ASP ALA ALA LEU           
SEQRES   2 A  483  TRP SER SER HIS GLU GLN MET LEU ALA GLN PRO LEU LYS           
SEQRES   3 A  483  ASP SER ASP ALA GLU VAL TYR ASP ILE ILE LYS LYS GLU           
SEQRES   4 A  483  SER ASN ARG GLN ARG VAL GLY LEU GLU LEU ILE ALA SER           
SEQRES   5 A  483  GLU ASN PHE ALA SER ARG ALA VAL LEU GLU ALA LEU GLY           
SEQRES   6 A  483  SER CYS LEU ASN ASN LYS TYR SER LEU GLY TYR PRO GLY           
SEQRES   7 A  483  GLN ARG TYR TYR GLY GLY THR GLU HIS ILE ASP GLU LEU           
SEQRES   8 A  483  GLU THR LEU CYS GLN LYS ARG ALA LEU GLN ALA TYR GLY           
SEQRES   9 A  483  LEU ASP PRO GLN CYS TRP GLY VAL ASN VAL GLN PRO TYR           
SEQRES  10 A  483  SER GLY SER PRO ALA ASN PHE ALA VAL TYR THR ALA LEU           
SEQRES  11 A  483  VAL GLU PRO HIS GLY ARG ILE MET GLY LEU ASP LEU PRO           
SEQRES  12 A  483  ASP GLY GLY HIS LEU THR HIS GLY PHE MET THR ASP LYS           
SEQRES  13 A  483  LYS LYS ILE SER ALA THR SER ILE PHE PHE GLU SER MET           
SEQRES  14 A  483  ALA TYR LYS VAL ASN PRO ASP THR GLY TYR ILE ASP TYR           
SEQRES  15 A  483  ASP ARG LEU GLU GLU ASN ALA ARG LEU PHE HIS PRO LYS           
SEQRES  16 A  483  LEU ILE ILE ALA GLY THR SER CYS TYR SER ARG ASN LEU           
SEQRES  17 A  483  ASP TYR GLY ARG LEU ARG LYS ILE ALA ASP GLU ASN GLY           
SEQRES  18 A  483  ALA TYR LEU MET ALA ASP MET ALA HIS ILE SER GLY LEU           
SEQRES  19 A  483  VAL VAL ALA GLY VAL VAL PRO SER PRO PHE GLU HIS CYS           
SEQRES  20 A  483  HIS VAL VAL THR THR THR THR HIS LYS THR LEU ARG GLY           
SEQRES  21 A  483  CYS ARG ALA GLY MET ILE PHE TYR ARG ARG GLY VAL ARG           
SEQRES  22 A  483  SER VAL ASP PRO LYS THR GLY LYS GLU ILE LEU TYR ASN           
SEQRES  23 A  483  LEU GLU SER LEU ILE ASN SER ALA VAL PHE PRO GLY LEU           
SEQRES  24 A  483  GLN GLY GLY PRO HIS ASN HIS ALA ILE ALA GLY VAL ALA           
SEQRES  25 A  483  VAL ALA LEU LYS GLN ALA MET THR PRO GLU PHE LYS GLU           
SEQRES  26 A  483  TYR GLN ARG GLN VAL VAL ALA ASN CYS ARG ALA LEU SER           
SEQRES  27 A  483  ALA ALA LEU VAL GLU LEU GLY TYR LYS ILE VAL THR GLY           
SEQRES  28 A  483  GLY SER ASP ASN HIS LEU ILE LEU VAL ASP LEU ARG SER           
SEQRES  29 A  483  LYS GLY THR ASP GLY GLY ARG ALA GLU LYS VAL LEU GLU           
SEQRES  30 A  483  ALA CYS SER ILE ALA CYS ASN LYS ASN THR CYS PRO GLY           
SEQRES  31 A  483  ASP LYS SER ALA LEU ARG PRO SER GLY LEU ARG LEU GLY           
SEQRES  32 A  483  THR PRO ALA LEU THR SER ARG GLY LEU LEU GLU LYS ASP           
SEQRES  33 A  483  PHE GLN LYS VAL ALA HIS PHE ILE HIS ARG GLY ILE GLU           
SEQRES  34 A  483  LEU THR VAL GLN ILE GLN ASP ASP THR GLY PRO ARG ALA           
SEQRES  35 A  483  THR LEU LYS GLU PHE LYS GLU LYS LEU ALA GLY ASP GLU           
SEQRES  36 A  483  LYS HIS GLN ARG ALA VAL ARG ALA LEU ARG GLN GLU VAL           
SEQRES  37 A  483  GLU SER PHE ALA ALA LEU PHE PRO LEU PRO GLY LEU PRO           
SEQRES  38 A  483  GLY PHE                                                       
SEQRES   1 B  483  ALA THR ALA VAL ASN GLY ALA PRO ARG ASP ALA ALA LEU           
SEQRES   2 B  483  TRP SER SER HIS GLU GLN MET LEU ALA GLN PRO LEU LYS           
SEQRES   3 B  483  ASP SER ASP ALA GLU VAL TYR ASP ILE ILE LYS LYS GLU           
SEQRES   4 B  483  SER ASN ARG GLN ARG VAL GLY LEU GLU LEU ILE ALA SER           
SEQRES   5 B  483  GLU ASN PHE ALA SER ARG ALA VAL LEU GLU ALA LEU GLY           
SEQRES   6 B  483  SER CYS LEU ASN ASN LYS TYR SER LEU GLY TYR PRO GLY           
SEQRES   7 B  483  GLN ARG TYR TYR GLY GLY THR GLU HIS ILE ASP GLU LEU           
SEQRES   8 B  483  GLU THR LEU CYS GLN LYS ARG ALA LEU GLN ALA TYR GLY           
SEQRES   9 B  483  LEU ASP PRO GLN CYS TRP GLY VAL ASN VAL GLN PRO TYR           
SEQRES  10 B  483  SER GLY SER PRO ALA ASN PHE ALA VAL TYR THR ALA LEU           
SEQRES  11 B  483  VAL GLU PRO HIS GLY ARG ILE MET GLY LEU ASP LEU PRO           
SEQRES  12 B  483  ASP GLY GLY HIS LEU THR HIS GLY PHE MET THR ASP LYS           
SEQRES  13 B  483  LYS LYS ILE SER ALA THR SER ILE PHE PHE GLU SER MET           
SEQRES  14 B  483  ALA TYR LYS VAL ASN PRO ASP THR GLY TYR ILE ASP TYR           
SEQRES  15 B  483  ASP ARG LEU GLU GLU ASN ALA ARG LEU PHE HIS PRO LYS           
SEQRES  16 B  483  LEU ILE ILE ALA GLY THR SER CYS TYR SER ARG ASN LEU           
SEQRES  17 B  483  ASP TYR GLY ARG LEU ARG LYS ILE ALA ASP GLU ASN GLY           
SEQRES  18 B  483  ALA TYR LEU MET ALA ASP MET ALA HIS ILE SER GLY LEU           
SEQRES  19 B  483  VAL VAL ALA GLY VAL VAL PRO SER PRO PHE GLU HIS CYS           
SEQRES  20 B  483  HIS VAL VAL THR THR THR THR HIS LYS THR LEU ARG GLY           
SEQRES  21 B  483  CYS ARG ALA GLY MET ILE PHE TYR ARG ARG GLY VAL ARG           
SEQRES  22 B  483  SER VAL ASP PRO LYS THR GLY LYS GLU ILE LEU TYR ASN           
SEQRES  23 B  483  LEU GLU SER LEU ILE ASN SER ALA VAL PHE PRO GLY LEU           
SEQRES  24 B  483  GLN GLY GLY PRO HIS ASN HIS ALA ILE ALA GLY VAL ALA           
SEQRES  25 B  483  VAL ALA LEU LYS GLN ALA MET THR PRO GLU PHE LYS GLU           
SEQRES  26 B  483  TYR GLN ARG GLN VAL VAL ALA ASN CYS ARG ALA LEU SER           
SEQRES  27 B  483  ALA ALA LEU VAL GLU LEU GLY TYR LYS ILE VAL THR GLY           
SEQRES  28 B  483  GLY SER ASP ASN HIS LEU ILE LEU VAL ASP LEU ARG SER           
SEQRES  29 B  483  LYS GLY THR ASP GLY GLY ARG ALA GLU LYS VAL LEU GLU           
SEQRES  30 B  483  ALA CYS SER ILE ALA CYS ASN LYS ASN THR CYS PRO GLY           
SEQRES  31 B  483  ASP LYS SER ALA LEU ARG PRO SER GLY LEU ARG LEU GLY           
SEQRES  32 B  483  THR PRO ALA LEU THR SER ARG GLY LEU LEU GLU LYS ASP           
SEQRES  33 B  483  PHE GLN LYS VAL ALA HIS PHE ILE HIS ARG GLY ILE GLU           
SEQRES  34 B  483  LEU THR VAL GLN ILE GLN ASP ASP THR GLY PRO ARG ALA           
SEQRES  35 B  483  THR LEU LYS GLU PHE LYS GLU LYS LEU ALA GLY ASP GLU           
SEQRES  36 B  483  LYS HIS GLN ARG ALA VAL ARG ALA LEU ARG GLN GLU VAL           
SEQRES  37 B  483  GLU SER PHE ALA ALA LEU PHE PRO LEU PRO GLY LEU PRO           
SEQRES  38 B  483  GLY PHE                                                       
HET    PO4  A 501       5                                                        
HET    PLP  A 500      15                                                        
HET    PO4  B 601       5                                                        
HET    GLY  B 602      10                                                        
HET    PLP  B 600      15                                                        
HETNAM     PO4 PHOSPHATE ION                                                     
HETNAM     PLP PYRIDOXAL-5'-PHOSPHATE                                            
HETNAM     GLY GLYCINE                                                           
HETSYN     PLP VITAMIN B6 PHOSPHATE                                              
FORMUL   3  PO4    2(O4 P 3-)                                                    
FORMUL   4  PLP    2(C8 H10 N O6 P)                                              
FORMUL   6  GLY    C2 H5 N O2                                                    
FORMUL   8  HOH   *86(H2 O)                                                      
HELIX    1   1 SER A   17  LEU A   22  1                                   6     
HELIX    2   2 PRO A   25  ASP A   30  1                                   6     
HELIX    3   3 ASP A   30  VAL A   46  1                                  17     
HELIX    4   4 SER A   58  GLY A   66  1                                   9     
HELIX    5   5 SER A   67  ASN A   71  5                                   5     
HELIX    6   6 THR A   86  TYR A  104  1                                  19     
HELIX    7   7 SER A  119  VAL A  132  1                                  14     
HELIX    8   8 LEU A  143  GLY A  146  5                                   4     
HELIX    9   9 HIS A  148  GLY A  152  5                                   5     
HELIX   10  10 SER A  161  PHE A  167  1                                   7     
HELIX   11  11 ASP A  182  HIS A  194  1                                  13     
HELIX   12  12 ASP A  210  ASN A  221  1                                  12     
HELIX   13  13 ILE A  232  GLY A  239  1                                   8     
HELIX   14  14 SER A  243  HIS A  247  5                                   5     
HELIX   15  15 HIS A  256  ARG A  260  5                                   5     
HELIX   16  16 ASN A  287  PHE A  297  1                                  11     
HELIX   17  17 HIS A  305  MET A  320  1                                  16     
HELIX   18  18 THR A  321  LEU A  345  1                                  25     
HELIX   19  19 THR A  351  GLY A  353  5                                   3     
HELIX   20  20 ARG A  364  GLY A  367  5                                   4     
HELIX   21  21 ASP A  369  CYS A  380  1                                  12     
HELIX   22  22 THR A  405  ARG A  411  1                                   7     
HELIX   23  23 LEU A  414  ASP A  438  1                                  25     
HELIX   24  24 THR A  444  GLY A  454  1                                  11     
HELIX   25  25 ASP A  455  ALA A  474  1                                  20     
HELIX   26  26 TRP B   15  SER B   17  5                                   3     
HELIX   27  27 HIS B   18  ALA B   23  1                                   6     
HELIX   28  28 PRO B   25  ASP B   30  1                                   6     
HELIX   29  29 ASP B   30  VAL B   46  1                                  17     
HELIX   30  30 SER B   58  GLY B   66  1                                   9     
HELIX   31  31 SER B   67  LYS B   72  5                                   6     
HELIX   32  32 THR B   86  TYR B  104  1                                  19     
HELIX   33  33 SER B  119  VAL B  132  1                                  14     
HELIX   34  34 LEU B  143  GLY B  146  5                                   4     
HELIX   35  35 HIS B  148  GLY B  152  5                                   5     
HELIX   36  36 SER B  161  PHE B  167  1                                   7     
HELIX   37  37 ASP B  182  HIS B  194  1                                  13     
HELIX   38  38 ASP B  210  ASN B  221  1                                  12     
HELIX   39  39 ILE B  232  ALA B  238  1                                   7     
HELIX   40  40 SER B  243  HIS B  247  5                                   5     
HELIX   41  41 HIS B  256  ARG B  260  5                                   5     
HELIX   42  42 ASN B  287  PHE B  297  1                                  11     
HELIX   43  43 HIS B  305  MET B  320  1                                  16     
HELIX   44  44 THR B  321  LEU B  345  1                                  25     
HELIX   45  45 THR B  351  GLY B  353  5                                   3     
HELIX   46  46 ARG B  364  GLY B  367  5                                   4     
HELIX   47  47 ASP B  369  CYS B  380  1                                  12     
HELIX   48  48 THR B  405  ARG B  411  1                                   7     
HELIX   49  49 LEU B  414  GLY B  440  1                                  27     
HELIX   50  50 THR B  444  GLY B  454  1                                  11     
HELIX   51  51 ASP B  455  ALA B  474  1                                  20     
SHEET    1   A 2 LEU A  48  GLU A  49  0                                         
SHEET    2   A 2 ILE A 382  ALA A 383  1  O  ALA A 383   N  LEU A  48            
SHEET    1   B 2 GLY A  76  TYR A  77  0                                         
SHEET    2   B 2 GLN A  80  ARG A  81 -1  O  GLN A  80   N  TYR A  77            
SHEET    1   C 7 TRP A 111  ASN A 114  0                                         
SHEET    2   C 7 GLY A 265  ARG A 270 -1  O  TYR A 269   N  GLY A 112            
SHEET    3   C 7 VAL A 250  THR A 254 -1  N  VAL A 251   O  PHE A 268            
SHEET    4   C 7 TYR A 224  ASP A 228  1  N  ALA A 227   O  THR A 252            
SHEET    5   C 7 LEU A 197  ALA A 200  1  N  ALA A 200   O  MET A 226            
SHEET    6   C 7 ARG A 137  LEU A 141  1  N  MET A 139   O  ILE A 199            
SHEET    7   C 7 GLU A 168  TYR A 172  1  O  GLU A 168   N  ILE A 138            
SHEET    1   D 4 LYS A 348  ILE A 349  0                                         
SHEET    2   D 4 LEU A 358  ASP A 362 -1  O  ASP A 362   N  LYS A 348            
SHEET    3   D 4 GLY A 400  GLY A 404 -1  O  LEU A 401   N  VAL A 361            
SHEET    4   D 4 ASN A 385  ASN A 387 -1  N  ASN A 385   O  ARG A 402            
SHEET    1   E 2 LEU B  48  GLU B  49  0                                         
SHEET    2   E 2 ILE B 382  ALA B 383  1  O  ALA B 383   N  LEU B  48            
SHEET    1   F 7 TRP B 111  ASN B 114  0                                         
SHEET    2   F 7 GLY B 265  ARG B 270 -1  O  TYR B 269   N  GLY B 112            
SHEET    3   F 7 VAL B 250  THR B 254 -1  N  VAL B 251   O  PHE B 268            
SHEET    4   F 7 TYR B 224  ASP B 228  1  N  ALA B 227   O  THR B 252            
SHEET    5   F 7 LEU B 197  ALA B 200  1  N  ALA B 200   O  MET B 226            
SHEET    6   F 7 ARG B 137  LEU B 141  1  N  MET B 139   O  ILE B 199            
SHEET    7   F 7 GLU B 168  TYR B 172  1  O  GLU B 168   N  ILE B 138            
SHEET    1   G 2 VAL B 273  SER B 275  0                                         
SHEET    2   G 2 ILE B 284  LEU B 285 -1  O  ILE B 284   N  SER B 275            
SHEET    1   H 4 LYS B 348  ILE B 349  0                                         
SHEET    2   H 4 LEU B 358  ASP B 362 -1  O  ASP B 362   N  LYS B 348            
SHEET    3   H 4 GLY B 400  GLY B 404 -1  O  LEU B 401   N  VAL B 361            
SHEET    4   H 4 ASN B 385  ASN B 387 -1  N  ASN B 385   O  ARG B 402            
LINK         NZ  LYS A 257                 C4A PLP A 500     1555   1555  1.51   
LINK         NZ  LYS B 257                 C4A PLP B 600     1555   1555  1.51   
LINK         C4A PLP B 600                 N  BGLY B 602     1555   1555  1.43   
LINK         C4A PLP B 600                 N  CGLY B 602     1555   1555  1.49   
CISPEP   1 PHE A  297    PRO A  298          0         0.26                      
CISPEP   2 PHE B  297    PRO B  298          0         0.46                      
SITE     1 AC1  6 SER A  53  HIS A 231  ARG A 402  PLP A 500                     
SITE     2 AC1  6 TYR B  73  TYR B  83                                           
SITE     1 AC2  8 TYR A  73  TYR A  83  SER B  53  SER B 203                     
SITE     2 AC2  8 HIS B 231  LYS B 257  ARG B 402  PLP B 600                     
SITE     1 AC3  8 TYR A  73  LEU A  75  TYR A  83  SER B  53                     
SITE     2 AC3  8 HIS B 231  LYS B 257  ARG B 402  PLP B 600                     
SITE     1 AC4 15 SER A 119  GLY A 120  SER A 121  HIS A 148                     
SITE     2 AC4 15 SER A 203  ASP A 228  ALA A 230  HIS A 231                     
SITE     3 AC4 15 THR A 254  HIS A 256  LYS A 257  PO4 A 501                     
SITE     4 AC4 15 HOH A 515  TYR B  73  GLY B 303                                
SITE     1 AC5 17 TYR A  73  TYR A 118  GLY A 303  SER B 119                     
SITE     2 AC5 17 GLY B 120  SER B 121  HIS B 148  THR B 202                     
SITE     3 AC5 17 SER B 203  ASP B 228  ALA B 230  HIS B 231                     
SITE     4 AC5 17 THR B 254  HIS B 256  LYS B 257  PO4 B 601                     
SITE     5 AC5 17 GLY B 602                                                      
CRYST1  114.920  114.920  158.290  90.00  90.00  90.00 P 41 21 2    16           
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      0.008702  0.000000  0.000000        0.00000                          
SCALE2      0.000000  0.008702  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.006318        0.00000                          
END