HEADER    LYASE                                   28-JAN-13   4IXT              
TITLE     STRUCTURE OF A 37-FOLD MUTANT OF HALOHYDRIN DEHALOGENASE (HHEC) BOUND 
TITLE    2 TO ETHYL (R)-4-CYANO-3-HYDROXYBUTYRATE                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HALOHYDRIN DEHALOGENASE;                                   
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: HALOHYDRIN DEHALOGENASE HHEC;                              
COMPND   5 EC: 4.5.1.-;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES;                                                       
COMPND   8 OTHER_DETAILS: THIS ENZYME IS A RESULT OF A DIRECTED EVOLUTION STUDY.
COMPND   9 IT CONTAINS 37 MUTATIONS, COMPARED TO ITS PARENT                     
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: RHIZOBIUM RADIOBACTER;                          
SOURCE   3 ORGANISM_COMMON: AGROBACTERIUM TUMEFACIENS;                          
SOURCE   4 ORGANISM_TAXID: 358;                                                 
SOURCE   5 GENE: HHEC;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PBAD;                                 
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PBAD-HHEC-2360                            
KEYWDS    THERMOSTABILITY, SYNERGISTIC MUTATIONS, COUPLED MUTATIONS, PROLINE-   
KEYWDS   2 INDUCED, BACKBONE CHANGES, ENANTIOSELECTIVITY CHANGES, DIRECTED      
KEYWDS   3 EVOLUTION, PROTEIN ENGINEERING, SHORT-CHAIN DEHYDROGENASE/REDUCTASE  
KEYWDS   4 ENZYME SUPERFAMILY, CYANOLYSIS, DEHALOGENASE, ATORVASTATIN           
KEYWDS   5 SYNTHESIS, LYASE                                                     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.J.FLOOR,M.SCHALLMEY,B.HAUER,M.BREUER,P.A.JEKEL,H.J.WIJMA,           
AUTHOR   2 B.W.DIJKSTRA,D.B.JANSSEN                                             
REVDAT   4   20-SEP-23 4IXT    1       REMARK SEQADV                            
REVDAT   3   24-JAN-18 4IXT    1       AUTHOR                                   
REVDAT   2   15-MAY-13 4IXT    1       JRNL                                     
REVDAT   1   20-FEB-13 4IXT    0                                                
JRNL        AUTH   M.SCHALLMEY,R.J.FLOOR,B.HAUER,M.BREUER,P.A.JEKEL,H.J.WIJMA,  
JRNL        AUTH 2 B.W.DIJKSTRA,D.B.JANSSEN                                     
JRNL        TITL   BIOCATALYTIC AND STRUCTURAL PROPERTIES OF A HIGHLY           
JRNL        TITL 2 ENGINEERED HALOHYDRIN DEHALOGENASE.                          
JRNL        REF    CHEMBIOCHEM                   V.  14   870 2013              
JRNL        REFN                   ISSN 1439-4227                               
JRNL        PMID   23585096                                                     
JRNL        DOI    10.1002/CBIC.201300005                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.49 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0070                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.49                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 52.34                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 22989                          
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) : 0.202                           
REMARK   3   R VALUE            (WORKING SET) : 0.199                           
REMARK   3   FREE R VALUE                     : 0.249                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1233                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.49                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.55                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1682                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 100.0                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2420                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 77                           
REMARK   3   BIN FREE R VALUE                    : 0.2920                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3811                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 12                                      
REMARK   3   SOLVENT ATOMS            : 54                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 29.07                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.05000                                             
REMARK   3    B22 (A**2) : -0.05000                                             
REMARK   3    B33 (A**2) : 0.09000                                              
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.364         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.259         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.173         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.415         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.932                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.892                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3924 ; 0.010 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5344 ; 1.115 ; 1.948       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   492 ; 8.136 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   169 ;40.394 ;24.142       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   606 ;19.206 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    17 ;19.994 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   587 ; 0.093 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3011 ; 0.013 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  2464 ; 1.286 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3958 ; 2.304 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1460 ; 3.785 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1386 ; 6.006 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
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                                                           
REMARK   4                                                                      
REMARK   4 4IXT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-FEB-13.                  
REMARK 100 THE DEPOSITION ID IS D_1000077344.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-JUL-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-4                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9395                             
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL                     
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 27496                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.470                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 73.360                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 7.300                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : 5.900                              
REMARK 200  R MERGE                    (I) : 0.09100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASES                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1PWZ                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 58.74                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.98                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 12.5% (W/V) PEG 8000,0.2 M MAGNESIUM     
REMARK 280  CHLORIDE, 0.1 M TRIS-CL PH 8.5, VAPOR DIFFUSION, SITTING DROP,      
REMARK 280  TEMPERATURE 293K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 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+3/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+3/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/4                                     
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       60.59550            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       52.34100            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       52.34100            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       90.89325            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       52.34100            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       52.34100            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       30.29775            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       52.34100            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       52.34100            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       90.89325            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       52.34100            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       52.34100            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       30.29775            
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       60.59550            
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: 16080 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 33150 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -129.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.000000 -1.000000  0.000000      104.68200            
REMARK 350   BIOMT2   2 -1.000000  0.000000  0.000000      104.68200            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       60.59550            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     GLY A   251                                                      
REMARK 465     MET A   252                                                      
REMARK 465     PRO A   253                                                      
REMARK 465     GLU A   254                                                      
REMARK 465     MET B     1                                                      
REMARK 465     GLU B   247                                                      
REMARK 465     ARG B   248                                                      
REMARK 465     TRP B   249                                                      
REMARK 465     PRO B   250                                                      
REMARK 465     GLY B   251                                                      
REMARK 465     MET B   252                                                      
REMARK 465     PRO B   253                                                      
REMARK 465     GLU B   254                                                      
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   8       58.84     36.98                                   
REMARK 500    PHE A  12     -112.97     64.67                                   
REMARK 500    HIS A  72      157.58    163.52                                   
REMARK 500    TRP A  86       49.68    -76.18                                   
REMARK 500    GLN A 105      -48.37   -135.48                                   
REMARK 500    THR A 131     -119.59   -109.20                                   
REMARK 500    CYS A 229       53.36   -155.59                                   
REMARK 500    LEU A 239       63.96   -103.33                                   
REMARK 500    TRP A 249      134.02    -14.18                                   
REMARK 500    PHE B  12     -116.55     49.17                                   
REMARK 500    ASP B  32      148.54   -173.15                                   
REMARK 500    HIS B  72      127.34    127.45                                   
REMARK 500    GLN B 105      -51.63   -132.00                                   
REMARK 500    THR B 131     -114.58   -112.55                                   
REMARK 500    PHE B 136       50.66     39.96                                   
REMARK 500    TYR B 186       -6.69   -140.75                                   
REMARK 500    CYS B 229       55.48   -145.16                                   
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 1H1 A 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 301                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4IY1   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF A 37-FOLD MUTANT OF HALOHYDRIN DEHALOGENASE (HHEC)      
REMARK 900 WITH CHLORIDE BOUND                                                  
REMARK 900 RELATED ID: 4IXW   RELATED DB: PDB                                   
REMARK 900 HHEC 2360 BOUND TO ETHYL (2S)-OXIRAN-2-YLACETATE                     
DBREF  4IXT A    1   254  UNP    Q93D82   Q93D82_RHIRD     1    254             
DBREF  4IXT B    1   254  UNP    Q93D82   Q93D82_RHIRD     1    254             
SEQADV 4IXT HIS A   37  UNP  Q93D82    GLN    37 ENGINEERED MUTATION            
SEQADV 4IXT GLN A   38  UNP  Q93D82    LYS    38 ENGINEERED MUTATION            
SEQADV 4IXT ILE A   52  UNP  Q93D82    LYS    52 ENGINEERED MUTATION            
SEQADV 4IXT VAL A   60  UNP  Q93D82    ALA    60 ENGINEERED MUTATION            
SEQADV 4IXT LEU A   70  UNP  Q93D82    TYR    70 ENGINEERED MUTATION            
SEQADV 4IXT HIS A   72  UNP  Q93D82    GLN    72 ENGINEERED MUTATION            
SEQADV 4IXT ILE A   75  UNP  Q93D82    VAL    75 ENGINEERED MUTATION            
SEQADV 4IXT ALA A   82  UNP  Q93D82    PHE    82 ENGINEERED MUTATION            
SEQADV 4IXT PRO A   83  UNP  Q93D82    ALA    83 ENGINEERED MUTATION            
SEQADV 4IXT VAL A   84  UNP  Q93D82    PRO    84 ENGINEERED MUTATION            
SEQADV 4IXT TRP A   86  UNP  Q93D82    PHE    86 ENGINEERED MUTATION            
SEQADV 4IXT ARG A   87  UNP  Q93D82    GLN    87 ENGINEERED MUTATION            
SEQADV 4IXT ASP A   99  UNP  Q93D82    GLY    99 ENGINEERED MUTATION            
SEQADV 4IXT MET A  100  UNP  Q93D82    ALA   100 ENGINEERED MUTATION            
SEQADV 4IXT LYS A  107  UNP  Q93D82    ARG   107 ENGINEERED MUTATION            
SEQADV 4IXT ALA A  112  UNP  Q93D82    VAL   112 ENGINEERED MUTATION            
SEQADV 4IXT ARG A  121  UNP  Q93D82    LYS   121 ENGINEERED MUTATION            
SEQADV 4IXT ALA A  134  UNP  Q93D82    THR   134 ENGINEERED MUTATION            
SEQADV 4IXT SER A  135  UNP  Q93D82    PRO   135 ENGINEERED MUTATION            
SEQADV 4IXT ALA A  146  UNP  Q93D82    THR   146 ENGINEERED MUTATION            
SEQADV 4IXT SER A  153  UNP  Q93D82    CYS   153 ENGINEERED MUTATION            
SEQADV 4IXT ALA A  154  UNP  Q93D82    THR   154 ENGINEERED MUTATION            
SEQADV 4IXT HIS A  166  UNP  Q93D82    TYR   166 ENGINEERED MUTATION            
SEQADV 4IXT ALA A  174  UNP  Q93D82    GLY   174 ENGINEERED MUTATION            
SEQADV 4IXT GLY A  177  UNP  Q93D82    TYR   177 ENGINEERED MUTATION            
SEQADV 4IXT VAL A  178  UNP  Q93D82    LEU   178 ENGINEERED MUTATION            
SEQADV 4IXT ASP A  179  UNP  Q93D82    HIS   179 ENGINEERED MUTATION            
SEQADV 4IXT GLY A  181  UNP  Q93D82    GLU   181 ENGINEERED MUTATION            
SEQADV 4IXT TYR A  186  UNP  Q93D82    PHE   186 ENGINEERED MUTATION            
SEQADV 4IXT SER A  189  UNP  Q93D82    THR   189 ENGINEERED MUTATION            
SEQADV 4IXT SER A  195  UNP  Q93D82    ASN   195 ENGINEERED MUTATION            
SEQADV 4IXT TRP A  201  UNP  Q93D82    HIS   201 ENGINEERED MUTATION            
SEQADV 4IXT ARG A  203  UNP  Q93D82    LYS   203 ENGINEERED MUTATION            
SEQADV 4IXT TYR A  205  UNP  Q93D82    VAL   205 ENGINEERED MUTATION            
SEQADV 4IXT THR A  222  UNP  Q93D82    ALA   222 ENGINEERED MUTATION            
SEQADV 4IXT VAL A  245  UNP  Q93D82    MET   245 ENGINEERED MUTATION            
SEQADV 4IXT VAL A  246  UNP  Q93D82    ILE   246 ENGINEERED MUTATION            
SEQADV 4IXT HIS B   37  UNP  Q93D82    GLN    37 ENGINEERED MUTATION            
SEQADV 4IXT GLN B   38  UNP  Q93D82    LYS    38 ENGINEERED MUTATION            
SEQADV 4IXT ILE B   52  UNP  Q93D82    LYS    52 ENGINEERED MUTATION            
SEQADV 4IXT VAL B   60  UNP  Q93D82    ALA    60 ENGINEERED MUTATION            
SEQADV 4IXT LEU B   70  UNP  Q93D82    TYR    70 ENGINEERED MUTATION            
SEQADV 4IXT HIS B   72  UNP  Q93D82    GLN    72 ENGINEERED MUTATION            
SEQADV 4IXT ILE B   75  UNP  Q93D82    VAL    75 ENGINEERED MUTATION            
SEQADV 4IXT ALA B   82  UNP  Q93D82    PHE    82 ENGINEERED MUTATION            
SEQADV 4IXT PRO B   83  UNP  Q93D82    ALA    83 ENGINEERED MUTATION            
SEQADV 4IXT VAL B   84  UNP  Q93D82    PRO    84 ENGINEERED MUTATION            
SEQADV 4IXT TRP B   86  UNP  Q93D82    PHE    86 ENGINEERED MUTATION            
SEQADV 4IXT ARG B   87  UNP  Q93D82    GLN    87 ENGINEERED MUTATION            
SEQADV 4IXT ASP B   99  UNP  Q93D82    GLY    99 ENGINEERED MUTATION            
SEQADV 4IXT MET B  100  UNP  Q93D82    ALA   100 ENGINEERED MUTATION            
SEQADV 4IXT LYS B  107  UNP  Q93D82    ARG   107 ENGINEERED MUTATION            
SEQADV 4IXT ALA B  112  UNP  Q93D82    VAL   112 ENGINEERED MUTATION            
SEQADV 4IXT ARG B  121  UNP  Q93D82    LYS   121 ENGINEERED MUTATION            
SEQADV 4IXT ALA B  134  UNP  Q93D82    THR   134 ENGINEERED MUTATION            
SEQADV 4IXT SER B  135  UNP  Q93D82    PRO   135 ENGINEERED MUTATION            
SEQADV 4IXT ALA B  146  UNP  Q93D82    THR   146 ENGINEERED MUTATION            
SEQADV 4IXT SER B  153  UNP  Q93D82    CYS   153 ENGINEERED MUTATION            
SEQADV 4IXT ALA B  154  UNP  Q93D82    THR   154 ENGINEERED MUTATION            
SEQADV 4IXT HIS B  166  UNP  Q93D82    TYR   166 ENGINEERED MUTATION            
SEQADV 4IXT ALA B  174  UNP  Q93D82    GLY   174 ENGINEERED MUTATION            
SEQADV 4IXT GLY B  177  UNP  Q93D82    TYR   177 ENGINEERED MUTATION            
SEQADV 4IXT VAL B  178  UNP  Q93D82    LEU   178 ENGINEERED MUTATION            
SEQADV 4IXT ASP B  179  UNP  Q93D82    HIS   179 ENGINEERED MUTATION            
SEQADV 4IXT GLY B  181  UNP  Q93D82    GLU   181 ENGINEERED MUTATION            
SEQADV 4IXT TYR B  186  UNP  Q93D82    PHE   186 ENGINEERED MUTATION            
SEQADV 4IXT SER B  189  UNP  Q93D82    THR   189 ENGINEERED MUTATION            
SEQADV 4IXT SER B  195  UNP  Q93D82    ASN   195 ENGINEERED MUTATION            
SEQADV 4IXT TRP B  201  UNP  Q93D82    HIS   201 ENGINEERED MUTATION            
SEQADV 4IXT ARG B  203  UNP  Q93D82    LYS   203 ENGINEERED MUTATION            
SEQADV 4IXT TYR B  205  UNP  Q93D82    VAL   205 ENGINEERED MUTATION            
SEQADV 4IXT THR B  222  UNP  Q93D82    ALA   222 ENGINEERED MUTATION            
SEQADV 4IXT VAL B  245  UNP  Q93D82    MET   245 ENGINEERED MUTATION            
SEQADV 4IXT VAL B  246  UNP  Q93D82    ILE   246 ENGINEERED MUTATION            
SEQRES   1 A  254  MET SER THR ALA ILE VAL THR ASN VAL LYS HIS PHE GLY          
SEQRES   2 A  254  GLY MET GLY SER ALA LEU ARG LEU SER GLU ALA GLY HIS          
SEQRES   3 A  254  THR VAL ALA CYS HIS ASP GLU SER PHE LYS HIS GLN ASP          
SEQRES   4 A  254  GLU LEU GLU ALA PHE ALA GLU THR TYR PRO GLN LEU ILE          
SEQRES   5 A  254  PRO MET SER GLU GLN GLU PRO VAL GLU LEU ILE GLU ALA          
SEQRES   6 A  254  VAL THR SER ALA LEU GLY HIS VAL ASP ILE LEU VAL SER          
SEQRES   7 A  254  ASN ASP ILE ALA PRO VAL GLU TRP ARG PRO ILE ASP LYS          
SEQRES   8 A  254  TYR ALA VAL GLU ASP TYR ARG ASP MET VAL GLU ALA LEU          
SEQRES   9 A  254  GLN ILE LYS PRO PHE ALA LEU ALA ASN ALA VAL ALA SER          
SEQRES  10 A  254  GLN MET LYS ARG ARG LYS SER GLY HIS ILE ILE PHE ILE          
SEQRES  11 A  254  THR SER ALA ALA SER PHE GLY PRO TRP LYS GLU LEU SER          
SEQRES  12 A  254  THR TYR ALA SER ALA ARG ALA GLY ALA SER ALA LEU ALA          
SEQRES  13 A  254  ASN ALA LEU SER LYS GLU LEU GLY GLU HIS ASN ILE PRO          
SEQRES  14 A  254  VAL PHE ALA ILE ALA PRO ASN GLY VAL ASP SER GLY ASP          
SEQRES  15 A  254  SER PRO TYR TYR TYR PRO SER GLU PRO TRP LYS THR SER          
SEQRES  16 A  254  PRO GLU HIS VAL ALA TRP VAL ARG LYS TYR THR ALA LEU          
SEQRES  17 A  254  GLN ARG LEU GLY THR GLN LYS GLU LEU GLY GLU LEU VAL          
SEQRES  18 A  254  THR PHE LEU ALA SER GLY SER CYS ASP TYR LEU THR GLY          
SEQRES  19 A  254  GLN VAL PHE TRP LEU ALA GLY GLY PHE PRO VAL VAL GLU          
SEQRES  20 A  254  ARG TRP PRO GLY MET PRO GLU                                  
SEQRES   1 B  254  MET SER THR ALA ILE VAL THR ASN VAL LYS HIS PHE GLY          
SEQRES   2 B  254  GLY MET GLY SER ALA LEU ARG LEU SER GLU ALA GLY HIS          
SEQRES   3 B  254  THR VAL ALA CYS HIS ASP GLU SER PHE LYS HIS GLN ASP          
SEQRES   4 B  254  GLU LEU GLU ALA PHE ALA GLU THR TYR PRO GLN LEU ILE          
SEQRES   5 B  254  PRO MET SER GLU GLN GLU PRO VAL GLU LEU ILE GLU ALA          
SEQRES   6 B  254  VAL THR SER ALA LEU GLY HIS VAL ASP ILE LEU VAL SER          
SEQRES   7 B  254  ASN ASP ILE ALA PRO VAL GLU TRP ARG PRO ILE ASP LYS          
SEQRES   8 B  254  TYR ALA VAL GLU ASP TYR ARG ASP MET VAL GLU ALA LEU          
SEQRES   9 B  254  GLN ILE LYS PRO PHE ALA LEU ALA ASN ALA VAL ALA SER          
SEQRES  10 B  254  GLN MET LYS ARG ARG LYS SER GLY HIS ILE ILE PHE ILE          
SEQRES  11 B  254  THR SER ALA ALA SER PHE GLY PRO TRP LYS GLU LEU SER          
SEQRES  12 B  254  THR TYR ALA SER ALA ARG ALA GLY ALA SER ALA LEU ALA          
SEQRES  13 B  254  ASN ALA LEU SER LYS GLU LEU GLY GLU HIS ASN ILE PRO          
SEQRES  14 B  254  VAL PHE ALA ILE ALA PRO ASN GLY VAL ASP SER GLY ASP          
SEQRES  15 B  254  SER PRO TYR TYR TYR PRO SER GLU PRO TRP LYS THR SER          
SEQRES  16 B  254  PRO GLU HIS VAL ALA TRP VAL ARG LYS TYR THR ALA LEU          
SEQRES  17 B  254  GLN ARG LEU GLY THR GLN LYS GLU LEU GLY GLU LEU VAL          
SEQRES  18 B  254  THR PHE LEU ALA SER GLY SER CYS ASP TYR LEU THR GLY          
SEQRES  19 B  254  GLN VAL PHE TRP LEU ALA GLY GLY PHE PRO VAL VAL GLU          
SEQRES  20 B  254  ARG TRP PRO GLY MET PRO GLU                                  
HET    1H1  A 301      11                                                       
HET     CL  B 301       1                                                       
HETNAM     1H1 ETHYL (3R)-4-CYANO-3-HYDROXYBUTANOATE                            
HETNAM      CL CHLORIDE ION                                                     
FORMUL   3  1H1    C7 H11 N O3                                                  
FORMUL   4   CL    CL 1-                                                        
FORMUL   5  HOH   *54(H2 O)                                                     
HELIX    1   1 GLY A   13  GLY A   25  1                                  13    
HELIX    2   2 ASP A   32  LYS A   36  5                                   5    
HELIX    3   3 HIS A   37  TYR A   48  1                                  12    
HELIX    4   4 GLU A   58  GLY A   71  1                                  14    
HELIX    5   5 PRO A   88  TYR A   92  5                                   5    
HELIX    6   6 ALA A   93  GLN A  105  1                                  13    
HELIX    7   7 GLN A  105  LYS A  123  1                                  19    
HELIX    8   8 SER A  132  GLY A  137  5                                   6    
HELIX    9   9 LEU A  142  GLY A  164  1                                  23    
HELIX   10  10 GLU A  165  ASN A  167  5                                   3    
HELIX   11  11 PRO A  188  LYS A  193  1                                   6    
HELIX   12  12 SER A  195  THR A  206  1                                  12    
HELIX   13  13 THR A  213  SER A  226  1                                  14    
HELIX   14  14 CYS A  229  THR A  233  5                                   5    
HELIX   15  15 GLY B   13  ALA B   24  1                                  12    
HELIX   16  16 ASP B   32  LYS B   36  5                                   5    
HELIX   17  17 HIS B   37  TYR B   48  1                                  12    
HELIX   18  18 GLU B   58  GLY B   71  1                                  14    
HELIX   19  19 PRO B   88  TYR B   92  5                                   5    
HELIX   20  20 ALA B   93  GLN B  105  1                                  13    
HELIX   21  21 GLN B  105  ARG B  122  1                                  18    
HELIX   22  22 LEU B  142  GLY B  164  1                                  23    
HELIX   23  23 GLU B  165  ASN B  167  5                                   3    
HELIX   24  24 PRO B  188  LYS B  193  1                                   6    
HELIX   25  25 SER B  195  THR B  206  1                                  12    
HELIX   26  26 THR B  213  SER B  226  1                                  14    
HELIX   27  27 CYS B  229  THR B  233  5                                   5    
SHEET    1   A 7 ILE A  52  PRO A  53  0                                        
SHEET    2   A 7 THR A  27  CYS A  30  1  N  CYS A  30   O  ILE A  52           
SHEET    3   A 7 THR A   3  VAL A   6  1  N  ALA A   4   O  THR A  27           
SHEET    4   A 7 ILE A  75  ASN A  79  1  O  VAL A  77   N  ILE A   5           
SHEET    5   A 7 HIS A 126  ILE A 130  1  O  ILE A 128   N  SER A  78           
SHEET    6   A 7 VAL A 170  PRO A 175  1  O  ILE A 173   N  PHE A 129           
SHEET    7   A 7 VAL A 236  LEU A 239  1  O  PHE A 237   N  ALA A 174           
SHEET    1   B 7 LEU B  51  PRO B  53  0                                        
SHEET    2   B 7 THR B  27  CYS B  30  1  N  VAL B  28   O  ILE B  52           
SHEET    3   B 7 THR B   3  VAL B   6  1  N  ALA B   4   O  THR B  27           
SHEET    4   B 7 ILE B  75  ASN B  79  1  O  VAL B  77   N  ILE B   5           
SHEET    5   B 7 HIS B 126  ILE B 130  1  O  ILE B 128   N  SER B  78           
SHEET    6   B 7 VAL B 170  PRO B 175  1  O  PHE B 171   N  PHE B 129           
SHEET    7   B 7 VAL B 236  LEU B 239  1  O  PHE B 237   N  ALA B 174           
CISPEP   1 TYR A  185    TYR A  186          0        -4.86                     
CISPEP   2 GLU A  190    PRO A  191          0        15.97                     
CISPEP   3 PHE A  243    PRO A  244          0        -8.19                     
CISPEP   4 TYR B  185    TYR B  186          0        12.30                     
CISPEP   5 GLU B  190    PRO B  191          0         9.50                     
CISPEP   6 PHE B  243    PRO B  244          0        -8.15                     
SITE     1 AC1 13 PHE A  12  SER A 132  ALA A 134  TRP A 139                    
SITE     2 AC1 13 LEU A 142  TYR A 145  PRO A 175  ASN A 176                    
SITE     3 AC1 13 GLY A 177  VAL A 178  TYR A 187  TRP A 249                    
SITE     4 AC1 13 HOH A 403                                                     
SITE     1 AC2  3 ASN B 176  GLY B 177  VAL B 178                               
CRYST1  104.682  104.682  121.191  90.00  90.00  90.00 P 43 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      0.009553  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009553  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008251        0.00000