HEADER    HYDROLASE                               15-SEP-03   1QZ3              
TITLE     CRYSTAL STRUCTURE OF MUTANT M211S/R215L OF CARBOXYLESTERASE EST2      
TITLE    2 COMPLEXED WITH HEXADECANESULFONATE                                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CARBOXYLESTERASE EST2;                                     
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ALICYCLOBACILLUS ACIDOCALDARIUS;                
SOURCE   3 ORGANISM_TAXID: 405212;                                              
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PT7-7SCII                                 
KEYWDS    ALPHA/BETA HYDROLASE FOLD, HYDROLASE                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    G.DE SIMONE,L.MANDRICH,V.MENCHISE,V.GIORDANO,F.FEBBRAIO,M.ROSSI,      
AUTHOR   2 C.PEDONE,G.MANCO                                                     
REVDAT   6   30-OCT-24 1QZ3    1       REMARK                                   
REVDAT   5   23-AUG-23 1QZ3    1       REMARK LINK                              
REVDAT   4   06-FEB-19 1QZ3    1       COMPND SOURCE REMARK DBREF               
REVDAT   4 2                   1       SEQADV HET    HETNAM FORMUL              
REVDAT   3   11-OCT-17 1QZ3    1       REMARK                                   
REVDAT   2   24-FEB-09 1QZ3    1       VERSN                                    
REVDAT   1   23-MAR-04 1QZ3    0                                                
JRNL        AUTH   G.DE SIMONE,L.MANDRICH,V.MENCHISE,V.GIORDANO,F.FEBBRAIO,     
JRNL        AUTH 2 M.ROSSI,C.PEDONE,G.MANCO                                     
JRNL        TITL   A SUBSTRATE-INDUCED SWITCH IN THE REACTION MECHANISM OF A    
JRNL        TITL 2 THERMOPHILIC ESTERASE: KINETIC EVIDENCES AND STRUCTURAL      
JRNL        TITL 3 BASIS.                                                       
JRNL        REF    J.BIOL.CHEM.                  V. 279  6815 2004              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   14617621                                                     
JRNL        DOI    10.1074/JBC.M307738200                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   G.DE SIMONE,S.GALDIERO,G.MANCO,D.LANG,M.ROSSI,C.PEDONE       
REMARK   1  TITL   A SNAPSHOT OF THE TRANSITION STATE ANALOGUE OF A NOVEL       
REMARK   1  TITL 2 THERMOPHILIC ESTERASE BELONGING TO THE SUBFAMILY OF          
REMARK   1  TITL 3 MAMMALIAN HORMONE-SENSITIVE LIPASE                           
REMARK   1  REF    J.MOL.BIOL.                   V. 303   761 2000              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1  DOI    10.1006/JMBI.2000.4195                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.30 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
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) : 2.30                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 94.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 16467                          
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) : 0.174                           
REMARK   3   FREE R VALUE                     : 0.216                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.500                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 789                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2412                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 19                                      
REMARK   3   SOLVENT ATOMS            : 253                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.008                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.530                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.175 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.835 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.180 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.137 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
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  : P_HEP.PARAM                                    
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3  TOPOLOGY FILE  2   : NULL                                           
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1QZ3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-SEP-03.                  
REMARK 100 THE DEPOSITION ID IS D_1000020244.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-FEB-01                          
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               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : X13                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.8015                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MAR                                
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 17707                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.300                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.08900                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.34                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 94.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.42600                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.200                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1EVQ                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.13                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.74                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, TRIS BUFFER, PH       
REMARK 280  8.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K                
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       51.79250            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       42.59650            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       42.59650            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       25.89625            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       42.59650            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       42.59650            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       77.68875            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       42.59650            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       42.59650            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       25.89625            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       42.59650            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       42.59650            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       77.68875            
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       51.79250            
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 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     MET A     1                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     PRO A   2    CG   CD                                             
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     LYS A   23   CD   CE   NZ                                        
REMARK 480     GLU A   68   OE1  OE2                                            
REMARK 480     LYS A  267   CE   NZ                                             
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    SER A 155   CB    SER A 155   OG      0.083                       
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  21       78.53   -116.12                                   
REMARK 500    ASP A  89     -161.21   -171.83                                   
REMARK 500    SER A 155     -118.77     46.10                                   
REMARK 500    TYR A 183       56.59     34.15                                   
REMARK 500    TYR A 188      163.05    174.21                                   
REMARK 500    LEU A 205      -72.25     70.22                                   
REMARK 500    SER A 289       -6.00     75.54                                   
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 HDS A 400                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1EVQ   RELATED DB: PDB                                   
REMARK 900 THE CRYSTAL STRUCTURE OF THE THERMOPHILIC CARBOXYLESTERASE EST2      
REMARK 900 FROM ALICYCLOBACILLUS ACIDOCALDARIUS                                 
DBREF  1QZ3 A    1   310  UNP    Q7SIG1   Q7SIG1_ALIAC     1    310             
SEQADV 1QZ3 SER A  211  UNP  Q7SIG1    MET   211 ENGINEERED MUTATION            
SEQADV 1QZ3 LEU A  215  UNP  Q7SIG1    ARG   215 ENGINEERED MUTATION            
SEQRES   1 A  310  MET PRO LEU ASP PRO VAL ILE GLN GLN VAL LEU ASP GLN          
SEQRES   2 A  310  LEU ASN ARG MET PRO ALA PRO ASP TYR LYS HIS LEU SER          
SEQRES   3 A  310  ALA GLN GLN PHE ARG SER GLN GLN SER LEU PHE PRO PRO          
SEQRES   4 A  310  VAL LYS LYS GLU PRO VAL ALA GLU VAL ARG GLU PHE ASP          
SEQRES   5 A  310  MET ASP LEU PRO GLY ARG THR LEU LYS VAL ARG MET TYR          
SEQRES   6 A  310  ARG PRO GLU GLY VAL GLU PRO PRO TYR PRO ALA LEU VAL          
SEQRES   7 A  310  TYR TYR HIS GLY GLY GLY TRP VAL VAL GLY ASP LEU GLU          
SEQRES   8 A  310  THR HIS ASP PRO VAL CYS ARG VAL LEU ALA LYS ASP GLY          
SEQRES   9 A  310  ARG ALA VAL VAL PHE SER VAL ASP TYR ARG LEU ALA PRO          
SEQRES  10 A  310  GLU HIS LYS PHE PRO ALA ALA VAL GLU ASP ALA TYR ASP          
SEQRES  11 A  310  ALA LEU GLN TRP ILE ALA GLU ARG ALA ALA ASP PHE HIS          
SEQRES  12 A  310  LEU ASP PRO ALA ARG ILE ALA VAL GLY GLY ASP SER ALA          
SEQRES  13 A  310  GLY GLY ASN LEU ALA ALA VAL THR SER ILE LEU ALA LYS          
SEQRES  14 A  310  GLU ARG GLY GLY PRO ALA LEU ALA PHE GLN LEU LEU ILE          
SEQRES  15 A  310  TYR PRO SER THR GLY TYR ASP PRO ALA HIS PRO PRO ALA          
SEQRES  16 A  310  SER ILE GLU GLU ASN ALA GLU GLY TYR LEU LEU THR GLY          
SEQRES  17 A  310  GLY MET SER LEU TRP PHE LEU ASP GLN TYR LEU ASN SER          
SEQRES  18 A  310  LEU GLU GLU LEU THR HIS PRO TRP PHE SER PRO VAL LEU          
SEQRES  19 A  310  TYR PRO ASP LEU SER GLY LEU PRO PRO ALA TYR ILE ALA          
SEQRES  20 A  310  THR ALA GLN TYR ASP PRO LEU ARG ASP VAL GLY LYS LEU          
SEQRES  21 A  310  TYR ALA GLU ALA LEU ASN LYS ALA GLY VAL LYS VAL GLU          
SEQRES  22 A  310  ILE GLU ASN PHE GLU ASP LEU ILE HIS GLY PHE ALA GLN          
SEQRES  23 A  310  PHE TYR SER LEU SER PRO GLY ALA THR LYS ALA LEU VAL          
SEQRES  24 A  310  ARG ILE ALA GLU LYS LEU ARG ASP ALA LEU ALA                  
HET    HDS  A 400      19                                                       
HETNAM     HDS 1-HEXADECANOSULFONIC ACID                                        
FORMUL   2  HDS    C16 H34 O3 S                                                 
FORMUL   3  HOH   *253(H2 O)                                                    
HELIX    1   1 ASP A    4  ASN A   15  1                                  12    
HELIX    2   2 SER A   26  GLN A   34  1                                   9    
HELIX    3   3 SER A   35  PHE A   37  5                                   3    
HELIX    4   4 HIS A   93  ARG A  105  1                                  13    
HELIX    5   5 PRO A  122  ARG A  138  1                                  17    
HELIX    6   6 ALA A  139  PHE A  142  5                                   4    
HELIX    7   7 SER A  155  ARG A  171  1                                  17    
HELIX    8   8 ALA A  195  ASN A  200  1                                   6    
HELIX    9   9 THR A  207  LEU A  219  1                                  13    
HELIX   10  10 SER A  221  HIS A  227  5                                   7    
HELIX   11  11 SER A  231  TYR A  235  5                                   5    
HELIX   12  12 LEU A  254  ALA A  268  1                                  15    
HELIX   13  13 GLY A  283  TYR A  288  5                                   6    
HELIX   14  14 SER A  291  ALA A  310  1                                  20    
SHEET    1   A 8 GLU A  47  LEU A  55  0                                        
SHEET    2   A 8 ARG A  58  ARG A  66 -1  O  MET A  64   N  ARG A  49           
SHEET    3   A 8 VAL A 107  ASP A 112 -1  O  SER A 110   N  ARG A  63           
SHEET    4   A 8 TYR A  74  TYR A  80  1  N  LEU A  77   O  PHE A 109           
SHEET    5   A 8 LEU A 144  ASP A 154  1  O  ALA A 150   N  ALA A  76           
SHEET    6   A 8 GLN A 179  ILE A 182  1  O  ILE A 182   N  GLY A 153           
SHEET    7   A 8 ALA A 244  ALA A 249  1  O  TYR A 245   N  GLN A 179           
SHEET    8   A 8 VAL A 272  PHE A 277  1  O  PHE A 277   N  THR A 248           
LINK         OG  SER A 155                 S1  HDS A 400     1555   1555  1.50  
CISPEP   1 PRO A   72    PRO A   73          0        -0.36                     
CISPEP   2 ALA A  116    PRO A  117          0         0.42                     
CISPEP   3 PHE A  121    PRO A  122          0         0.62                     
CISPEP   4 GLY A  173    PRO A  174          0        -0.28                     
SITE     1 AC1 13 VAL A  10  GLN A  13  PHE A  30  GLN A  34                    
SITE     2 AC1 13 LEU A  36  GLY A  83  GLY A  84  SER A 155                    
SITE     3 AC1 13 ALA A 156  MET A 210  PHE A 214  HIS A 282                    
SITE     4 AC1 13 HOH A 441                                                     
CRYST1   85.193   85.193  103.585  90.00  90.00  90.00 P 41 21 2     8          
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      0.011738  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.011738  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009654        0.00000