HEADER    HYDROLASE                               17-JUN-08   3DHC              
TITLE     1.3 ANGSTROM STRUCTURE OF N-ACYL HOMOSERINE LACTONE HYDROLASE WITH THE
TITLE    2 PRODUCT N-HEXANOYL-L-HOMOCYSTEINE BOUND TO THE CATALYTIC METAL CENTER
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: N-ACYL HOMOSERINE LACTONE HYDROLASE;                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: AIIA-LIKE PROTEIN;                                          
COMPND   5 EC: 3.1.1.-;                                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BACILLUS THURINGIENSIS SEROVAR KURSTAKI;        
SOURCE   3 ORGANISM_TAXID: 29339;                                               
SOURCE   4 GENE: AIIA;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PMAL;                                     
SOURCE   9 OTHER_DETAILS: TEV PROTEASE WAS USED TO CUT OFF THE FUSION PROTEIN   
SOURCE  10 MBP RESULTING IN 4 EXTRA RESIDUES AT THE N TERMINUS. THE EXTRA       
SOURCE  11 RESIDUES ARE NOT OBSERVED IN THE STRUCTURE                           
KEYWDS    ZINC BIMETALLOHYDROLASE, QOURUM QUENCHING, N-ACYL HOMOCYSTEINE        
KEYWDS   2 THIOLACTONE, PRODUCT COMPLEX, AHL LACTONASE, GENERAL ACID, CATALYTIC 
KEYWDS   3 MECHANISM, HYDROLASE                                                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.LIU,J.MOMB,P.W.THOMAS,A.MOULIN,G.A.PETSKO,W.FAST,D.RINGE            
REVDAT   5   30-AUG-23 3DHC    1       REMARK SEQADV                            
REVDAT   4   25-OCT-17 3DHC    1       REMARK                                   
REVDAT   3   13-JUL-11 3DHC    1       VERSN                                    
REVDAT   2   24-FEB-09 3DHC    1       VERSN                                    
REVDAT   1   29-JUL-08 3DHC    0                                                
JRNL        AUTH   D.LIU,J.MOMB,P.W.THOMAS,A.MOULIN,G.A.PETSKO,W.FAST,D.RINGE   
JRNL        TITL   MECHANISM OF THE QUORUM-QUENCHING LACTONASE (AIIA) FROM      
JRNL        TITL 2 BACILLUS THURINGIENSIS. 1. PRODUCT-BOUND STRUCTURES.         
JRNL        REF    BIOCHEMISTRY                  V.  47  7706 2008              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   18627129                                                     
JRNL        DOI    10.1021/BI800368Y                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   J.MOMB,C.WANG,D.LIU,P.W.THOMAS,G.A.PETSKO,H.GUO,D.RINGE,     
REMARK   1  AUTH 2 W.FAST                                                       
REMARK   1  TITL   MECHANISM OF THE QUORUM-QUENCHING LACTONASE (AIIA) FROM      
REMARK   1  TITL 2 BACILLUS THURINGIENSIS: 2. SUBSTRATE MODELING AND ACTIVE     
REMARK   1  TITL 3 SITE MUTATIONS                                               
REMARK   1  REF    TO BE PUBLISHED                                              
REMARK   1  REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.30 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
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) : 1.30                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 23.62                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 53865                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.145                           
REMARK   3   R VALUE            (WORKING SET) : 0.143                           
REMARK   3   FREE R VALUE                     : 0.183                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2869                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.30                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.33                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2719                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 65.11                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3060                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 123                          
REMARK   3   BIN FREE R VALUE                    : 0.3550                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1989                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 53                                      
REMARK   3   SOLVENT ATOMS            : 271                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 22.40                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 22.40                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : -0.01000                                             
REMARK   3    B33 (A**2) : 0.02000                                              
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): 0.053         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.052         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.030         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.615         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.976                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.962                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2153 ; 0.022 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2914 ; 2.050 ; 2.003       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   254 ; 6.490 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    97 ;30.452 ;25.155       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   385 ;12.242 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     7 ;21.579 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   329 ; 0.267 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1587 ; 0.012 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1099 ; 0.216 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1504 ; 0.322 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   258 ; 0.217 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     4 ; 0.054 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    45 ; 0.186 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    23 ; 0.148 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1309 ; 2.465 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2095 ; 3.331 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   941 ; 4.965 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   818 ; 6.622 ; 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 3DHC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-JUN-08.                  
REMARK 100 THE DEPOSITION ID IS D_1000048039.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-APR-06                          
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               : APS                                
REMARK 200  BEAMLINE                       : 23-ID-D                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97934                            
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL MONOCHROMATOR       
REMARK 200  OPTICS                         : K-B PAIR BIOMORPH MIRRORS          
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 300 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 56793                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.300                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 94.4                               
REMARK 200  DATA REDUNDANCY                : 6.600                              
REMARK 200  R MERGE                    (I) : 0.05100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.5000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.30                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.35                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 67.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.80                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.48100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.100                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: PDB ENTRY 2A7M                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 41.38                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: GLYCEROL, TRIS-HCL, MGCL2, N-HEXANOYL    
REMARK 280  -L-HOMOCYSTEINE THIOLACTONE, METHANOL, PH 8.5, VAPOR DIFFUSION,     
REMARK 280  HANGING DROP, TEMPERATURE 298K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       27.38750            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       39.59550            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       27.73000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       39.59550            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       27.38750            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       27.73000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLY A    -3                                                      
REMARK 465     ARG A    -2                                                      
REMARK 465     ILE A    -1                                                      
REMARK 465     SER A     0                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     GLU A   43   CD   OE1  OE2                                       
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   OE1  GLU A    44     O    HOH A   371              2.13            
REMARK 500   O    HOH A   510     O    HOH A   518              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLU A 129   CD    GLU A 129   OE2     0.095                       
REMARK 500    CYS A 243   CB    CYS A 243   SG     -0.115                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    CYS A  37   CA  -  CB  -  SG  ANGL. DEV. =   9.1 DEGREES          
REMARK 500    ARG A  82   NE  -  CZ  -  NH1 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ILE A 237   CG1 -  CB  -  CG2 ANGL. DEV. =  16.2 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    ASP A  50      162.27     69.24                                   
REMARK 500    HIS A 133      -21.21   -147.95                                   
REMARK 500    ILE A 142       45.45   -144.62                                   
REMARK 500    ILE A 190     -137.14     52.99                                   
REMARK 500    HIS A 235       67.33   -150.10                                   
REMARK 500    PHE A 246      131.40    -39.08                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 251  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 104   NE2                                                    
REMARK 620 2 HIS A 106   ND1  92.0                                              
REMARK 620 3 HIS A 169   NE2 108.5  97.8                                        
REMARK 620 4 CYK A 253   O1  149.0  90.9 101.7                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 252  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 109   NE2                                                    
REMARK 620 2 ASP A 191   OD2 100.2                                              
REMARK 620 3 HIS A 235   NE2 118.0 123.6                                        
REMARK 620 4 CYK A 253   O2  103.9  88.8 117.2                                  
REMARK 620 N                    1     2     3                                   
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 251                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 252                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYK A 253                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 254                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 255                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 256                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 257                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 258                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 259                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2A7M   RELATED DB: PDB                                   
REMARK 900 THE SAME PROTEIN WITHOUT THE PRODUCT BOUND.                          
REMARK 900 RELATED ID: 2R2D   RELATED DB: PDB                                   
REMARK 900 A HOMOLOG FROM AGROBACTERIUM TUMEFACIENS.                            
REMARK 900 RELATED ID: 3DHA   RELATED DB: PDB                                   
REMARK 900 N-ACYL HOMOSERINE LACTONE HYDROLASE WITH N-HEXANOYL-L-HOMOSERINE     
REMARK 900 RELATED ID: 3DHB   RELATED DB: PDB                                   
REMARK 900 N-ACYL HOMOSERINE LACTONE HYDROLASE WITH N-HEXANOYL-L-HOMOSERINE     
DBREF  3DHC A    1   250  UNP    Q7B8B9   Q7B8B9_BACTK     1    250             
SEQADV 3DHC GLY A   -3  UNP  Q7B8B9              EXPRESSION TAG                 
SEQADV 3DHC ARG A   -2  UNP  Q7B8B9              EXPRESSION TAG                 
SEQADV 3DHC ILE A   -1  UNP  Q7B8B9              EXPRESSION TAG                 
SEQADV 3DHC SER A    0  UNP  Q7B8B9              EXPRESSION TAG                 
SEQRES   1 A  254  GLY ARG ILE SER MET THR VAL LYS LYS LEU TYR PHE ILE          
SEQRES   2 A  254  PRO ALA GLY ARG CYS MET LEU ASP HIS SER SER VAL ASN          
SEQRES   3 A  254  SER ALA LEU THR PRO GLY LYS LEU LEU ASN LEU PRO VAL          
SEQRES   4 A  254  TRP CYS TYR LEU LEU GLU THR GLU GLU GLY PRO ILE LEU          
SEQRES   5 A  254  VAL ASP THR GLY MET PRO GLU SER ALA VAL ASN ASN GLU          
SEQRES   6 A  254  GLY LEU PHE ASN GLY THR PHE VAL GLU GLY GLN ILE LEU          
SEQRES   7 A  254  PRO LYS MET THR GLU GLU ASP ARG ILE VAL ASN ILE LEU          
SEQRES   8 A  254  LYS ARG VAL GLY TYR GLU PRO ASP ASP LEU LEU TYR ILE          
SEQRES   9 A  254  ILE SER SER HIS LEU HIS PHE ASP HIS ALA GLY GLY ASN          
SEQRES  10 A  254  GLY ALA PHE THR ASN THR PRO ILE ILE VAL GLN ARG THR          
SEQRES  11 A  254  GLU TYR GLU ALA ALA LEU HIS ARG GLU GLU TYR MET LYS          
SEQRES  12 A  254  GLU CYS ILE LEU PRO HIS LEU ASN TYR LYS ILE ILE GLU          
SEQRES  13 A  254  GLY ASP TYR GLU VAL VAL PRO GLY VAL GLN LEU LEU TYR          
SEQRES  14 A  254  THR PRO GLY HIS SER PRO GLY HIS GLN SER LEU PHE ILE          
SEQRES  15 A  254  GLU THR GLU GLN SER GLY SER VAL LEU LEU THR ILE ASP          
SEQRES  16 A  254  ALA SER TYR THR LYS GLU ASN PHE GLU ASP GLU VAL PRO          
SEQRES  17 A  254  PHE ALA GLY PHE ASP PRO GLU LEU ALA LEU SER SER ILE          
SEQRES  18 A  254  LYS ARG LEU LYS GLU VAL VAL LYS LYS GLU LYS PRO ILE          
SEQRES  19 A  254  ILE PHE PHE GLY HIS ASP ILE GLU GLN GLU LYS SER CYS          
SEQRES  20 A  254  ARG VAL PHE PRO GLU TYR ILE                                  
HET     ZN  A 251       1                                                       
HET     ZN  A 252       1                                                       
HET    CYK  A 253      15                                                       
HET    GOL  A 254       6                                                       
HET    GOL  A 255       6                                                       
HET    GOL  A 256       6                                                       
HET    GOL  A 257       6                                                       
HET    GOL  A 258       6                                                       
HET    GOL  A 259       6                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM     CYK N-HEXANOYL-L-HOMOCYSTEINE                                        
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   2   ZN    2(ZN 2+)                                                     
FORMUL   4  CYK    C10 H19 N O3 S                                               
FORMUL   5  GOL    6(C3 H8 O3)                                                  
FORMUL  11  HOH   *271(H2 O)                                                    
HELIX    1   1 SER A   19  VAL A   21  5                                   3    
HELIX    2   2 PRO A   54  VAL A   58  5                                   5    
HELIX    3   3 THR A   78  ASP A   81  5                                   4    
HELIX    4   4 ARG A   82  GLY A   91  1                                  10    
HELIX    5   5 GLU A   93  LEU A   97  5                                   5    
HELIX    6   6 HIS A  106  GLY A  111  1                                   6    
HELIX    7   7 GLY A  112  PHE A  116  5                                   5    
HELIX    8   8 ARG A  125  LEU A  132  1                                   8    
HELIX    9   9 MET A  138  ILE A  142  5                                   5    
HELIX   10  10 ASP A  191  SER A  193  5                                   3    
HELIX   11  11 THR A  195  ASP A  201  1                                   7    
HELIX   12  12 ASP A  209  LYS A  228  1                                  20    
HELIX   13  13 ASP A  236  LYS A  241  1                                   6    
SHEET    1   A 7 ILE A  73  LYS A  76  0                                        
SHEET    2   A 7 LYS A   5  ASP A  17 -1  N  MET A  15   O  LEU A  74           
SHEET    3   A 7 LEU A  30  THR A  42 -1  O  LEU A  39   N  TYR A   7           
SHEET    4   A 7 GLY A  45  VAL A  49 -1  O  VAL A  49   N  TYR A  38           
SHEET    5   A 7 TYR A  99  ILE A 101  1  O  ILE A 101   N  LEU A  48           
SHEET    6   A 7 ILE A 121  GLN A 124  1  O  ILE A 122   N  ILE A 100           
SHEET    7   A 7 TYR A 148  ILE A 151  1  O  LYS A 149   N  ILE A 121           
SHEET    1   B 5 TYR A 155  VAL A 158  0                                        
SHEET    2   B 5 VAL A 161  TYR A 165 -1  O  LEU A 163   N  TYR A 155           
SHEET    3   B 5 GLN A 174  THR A 180 -1  O  PHE A 177   N  GLN A 162           
SHEET    4   B 5 GLY A 184  ILE A 190 -1  O  VAL A 186   N  ILE A 178           
SHEET    5   B 5 ILE A 230  PHE A 233  1  O  PHE A 232   N  LEU A 187           
LINK         NE2 HIS A 104                ZN    ZN A 251     1555   1555  2.12  
LINK         ND1 HIS A 106                ZN    ZN A 251     1555   1555  2.17  
LINK         NE2 HIS A 109                ZN    ZN A 252     1555   1555  2.06  
LINK         NE2 HIS A 169                ZN    ZN A 251     1555   1555  2.03  
LINK         OD2 ASP A 191                ZN    ZN A 252     1555   1555  1.99  
LINK         NE2 HIS A 235                ZN    ZN A 252     1555   1555  2.06  
LINK        ZN    ZN A 251                 O1  CYK A 253     1555   1555  1.94  
LINK        ZN    ZN A 252                 O2  CYK A 253     1555   1555  1.96  
CISPEP   1 PHE A  246    PRO A  247          0        10.90                     
SITE     1 AC1  6 HIS A 104  HIS A 106  HIS A 169  ASP A 191                    
SITE     2 AC1  6  ZN A 252  CYK A 253                                          
SITE     1 AC2  6 ASP A 108  HIS A 109  ASP A 191  HIS A 235                    
SITE     2 AC2  6  ZN A 251  CYK A 253                                          
SITE     1 AC3 13 LEU A  16  HIS A 106  PHE A 107  ASP A 108                    
SITE     2 AC3 13 HIS A 109  HIS A 169  ASP A 191  TYR A 194                    
SITE     3 AC3 13 HIS A 235   ZN A 251   ZN A 252  HOH A 442                    
SITE     4 AC3 13 HOH A 501                                                     
SITE     1 AC4  7 ASN A  59  ASN A  60  GLU A  61  LYS A  76                    
SITE     2 AC4  7 MET A  77  HOH A 278  HOH A 360                               
SITE     1 AC5  6 LYS A  29  LEU A  30  ARG A  89  PHE A 246                    
SITE     2 AC5  6 HOH A 310  HOH A 332                                          
SITE     1 AC6  4 GLU A  61  GLY A  62  ASN A  65  PRO A 247                    
SITE     1 AC7  9 MET A  53  GLU A  55  GLY A 111  ALA A 115                    
SITE     2 AC7  9 GLU A 152  HOH A 267  HOH A 293  HOH A 329                    
SITE     3 AC7  9 HOH A 471                                                     
SITE     1 AC8  7 HIS A 133  ARG A 134  PRO A 171  SER A 242                    
SITE     2 AC8  7 HOH A 306  HOH A 455  HOH A 520                               
SITE     1 AC9  6 PRO A  94  ALA A 115  GLU A 152  HOH A 290                    
SITE     2 AC9  6 HOH A 295  HOH A 408                                          
CRYST1   54.775   55.460   79.191  90.00  90.00  90.00 P 21 21 21    4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.018257  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.018031  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012628        0.00000