HEADER    HYDROLASE                               03-NOV-00   1G66              
TITLE     ACETYLXYLAN ESTERASE AT 0.90 ANGSTROM RESOLUTION                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ACETYL XYLAN ESTERASE II;                                  
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.1.1.6                                                          
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PENICILLIUM PURPUROGENUM;                       
SOURCE   3 ORGANISM_TAXID: 28575                                                
KEYWDS    SERINE HYDROLASE, ACETYL XYLOPYRANOSE, XYLAN, HYDROLASE               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.GHOSH,M.SAWICKI,P.LALA,M.ERMAN,W.PANGBORN,J.EYZAGUIRRE,R.GUTIERREZ, 
AUTHOR   2 H.JORNVALL,D.J.THIEL                                                 
REVDAT   6   25-DEC-24 1G66    1       REMARK LINK   ATOM                       
REVDAT   5   13-JUL-11 1G66    1       VERSN                                    
REVDAT   4   24-FEB-09 1G66    1       VERSN                                    
REVDAT   3   01-APR-03 1G66    1       JRNL                                     
REVDAT   2   11-APR-01 1G66    1       JRNL   ATOM                              
REVDAT   1   17-JAN-01 1G66    0                                                
JRNL        AUTH   D.GHOSH,M.SAWICKI,P.LALA,M.ERMAN,W.PANGBORN,J.EYZAGUIRRE,    
JRNL        AUTH 2 R.GUTIERREZ,H.JORNVALL,D.J.THIEL                             
JRNL        TITL   MULTIPLE CONFORMATIONS OF CATALYTIC SERINE AND HISTIDINE IN  
JRNL        TITL 2 ACETYLXYLAN ESTERASE AT 0.90 A.                              
JRNL        REF    J.BIOL.CHEM.                  V. 276 11159 2001              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   11134051                                                     
JRNL        DOI    10.1074/JBC.M008831200                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   D.GHOSH,M.ERMAN,M.SAWICKI,P.LALA,D.R.WEEKS,N.LI,W.PANGBORN,  
REMARK   1  AUTH 2 D.J.THIEL,H.JORNVALL,R.GUTIERREZ,J.EYZAGUIRRE                
REMARK   1  TITL   DETERMINATION OF A PROTEIN STRUCTURE BY IODINATION: THE      
REMARK   1  TITL 2 STRUCTURE OF IODINATED ACETYLXYLAN ESTERASE                  
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  55   779 1999              
REMARK   1  REFN                   ISSN 0907-4449                               
REMARK   1  DOI    10.1107/S0907444999000244                                    
REMARK   1 REFERENCE 2                                                          
REMARK   1  TITL   CHARACTERIZATION OF CRYSTALS OF P. PURPUROGENUM ACETYL XYLAN 
REMARK   1  TITL 2 ESTERASE FROM HIGH RESOLUTION X-RAY DIFFRACTION              
REMARK   1  REF    PROTEINS                      V.  24   523 1996              
REMARK   1  REFN                   ISSN 0887-3585                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    0.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : SHELXL-97                                            
REMARK   3   AUTHORS     : G.M.SHELDRICK                                        
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 0.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 99.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   CROSS-VALIDATION METHOD           : NULL                           
REMARK   3   FREE R VALUE TEST SET SELECTION   : RANDOM                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (NO CUTOFF).                         
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : 0.107                  
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.107                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.132                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 4800                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 95283                  
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F).                     
REMARK   3   R VALUE   (WORKING + TEST SET, F>4SIG(F)) : NULL                   
REMARK   3   R VALUE          (WORKING SET, F>4SIG(F)) : NULL                   
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS      : 1442                                          
REMARK   3   NUCLEIC ACID ATOMS : 0                                             
REMARK   3   HETEROGEN ATOMS    : 44                                            
REMARK   3   SOLVENT ATOMS      : 299                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : NULL                    
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : NULL                    
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL                    
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : NULL                    
REMARK   3   NUMBER OF RESTRAINTS                     : NULL                    
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.016                   
REMARK   3   ANGLE DISTANCES                      (A) : 1.982                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL                    
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : 1.717                   
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : NULL                    
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : NULL                    
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : NULL                    
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : NULL                    
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : NULL                    
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : NULL                    
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED: NULL                                                  
REMARK   3                                                                      
REMARK   3  STEREOCHEMISTRY TARGET VALUES : ENGH & HUBER                        
REMARK   3   SPECIAL CASE: NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1G66 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-DEC-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000012282.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-DEC-95                          
REMARK 200  TEMPERATURE           (KELVIN) : 85                                 
REMARK 200  PH                             : 5.3                                
REMARK 200  NUMBER OF CRYSTALS USED        : 2                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : CHESS                              
REMARK 200  BEAMLINE                       : A1                                 
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : SAGITALLY FOCUSSED SI (111)        
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : PRINCETON 2K                       
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 95283                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 0.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 99.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 86.6                               
REMARK 200  DATA REDUNDANCY                : 4.410                              
REMARK 200  R MERGE                    (I) : 0.05800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 29.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 0.94                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 40.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.18500                            
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: AB INITIO PHASING            
REMARK 200 SOFTWARE USED: PHASES                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 31.18                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.79                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, PH 5.3, VAPOR          
REMARK 280  DIFFUSION, 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       17.27050            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       35.69600            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       29.94900            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       35.69600            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       17.27050            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       29.94900            
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 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 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   H    CYS A    46     HG   SER A    60              1.32            
REMARK 500   O    HOH A   349     O    HOH A   596              1.37            
REMARK 500   O    GLY A    54     O    HOH A   587              1.41            
REMARK 500   HZ2  LYS A   166     O    HOH A   332              1.46            
REMARK 500   O    HOH A   582     O    HOH A   591              1.66            
REMARK 500   O    HOH A   555     O    HOH A   586              1.72            
REMARK 500   OG   SER A   160     O1   GOL A   223              1.77            
REMARK 500   O1   GOL A   222     O    HOH A   550              1.83            
REMARK 500   O2   GOL A   223     O    HOH A   393              1.85            
REMARK 500   O    HOH A   537     O    HOH A   547              1.92            
REMARK 500   O1   GOL A   220     O    HOH A   473              1.96            
REMARK 500   O    HOH A   319     O    HOH A   443              2.00            
REMARK 500   O    HOH A   399     O    HOH A   587              2.03            
REMARK 500   O    HOH A   561     O    HOH A   568              2.09            
REMARK 500   O    HOH A   379     O    HOH A   575              2.10            
REMARK 500   O    HOH A   581     O    HOH A   590              2.11            
REMARK 500   O1   GOL A   220     O3   GOL A   222              2.14            
REMARK 500   O2   GOL A   222     O    HOH A   561              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   469     O    HOH A   593     3645     1.22            
REMARK 500   N    GLU A   193     O    HOH A   583     3555     2.14            
REMARK 500   O    HOH A   583     O    HOH A   585     2555     2.15            
REMARK 500   O    HOH A   479     O    HOH A   570     3655     2.17            
REMARK 500   OD1  ASN A    27     O    HOH A   316     3655     2.17            
REMARK 500   C    SER A   192     O    HOH A   583     3555     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    GLY A 207   C     GLY A 207   OXT     0.139                       
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    ASP A 133   CB  -  CG  -  OD1 ANGL. DEV. =  -7.4 DEGREES          
REMARK 500    LYS A 166   CG  -  CD  -  CE  ANGL. DEV. =  22.7 DEGREES          
REMARK 500    TYR A 177   CB  -  CG  -  CD1 ANGL. DEV. =   6.2 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    THR A  14       -4.97     70.94                                   
REMARK 500    ASN A  42       46.14    -91.89                                   
REMARK 500    SER A  90     -116.51     62.01                                   
REMARK 500    ALA A 149     -114.44   -122.45                                   
REMARK 500    TYR A 177      -63.60    -96.34                                   
REMARK 500    CYS A 179     -159.01   -118.60                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 540        DISTANCE =  6.63 ANGSTROMS                       
REMARK 525    HOH A 583        DISTANCE =  6.74 ANGSTROMS                       
REMARK 525    HOH A 585        DISTANCE =  7.52 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 210                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 211                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 212                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 213                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 220                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 222                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 223                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 224                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1BS9   RELATED DB: PDB                                   
REMARK 900 ROOM TEMPERATURE STRUCTURE OF ACETYLXYLAN ESTERASE AT 1.1 ANGSTROM   
REMARK 900 RELATED ID: 2AXE   RELATED DB: PDB                                   
REMARK 900 IODINATED COMPLEX OF ACETYLXYLAN ESTERASE AT 1.80 ANGSTROM           
DBREF  1G66 A    1   207  UNP    O59893   O59893_PENPU    28    234             
SEQRES   1 A  207  SER CYS PRO ALA ILE HIS VAL PHE GLY ALA ARG GLU THR          
SEQRES   2 A  207  THR ALA SER PRO GLY TYR GLY SER SER SER THR VAL VAL          
SEQRES   3 A  207  ASN GLY VAL LEU SER ALA TYR PRO GLY SER THR ALA GLU          
SEQRES   4 A  207  ALA ILE ASN TYR PRO ALA CYS GLY GLY GLN SER SER CYS          
SEQRES   5 A  207  GLY GLY ALA SER TYR SER SER SER VAL ALA GLN GLY ILE          
SEQRES   6 A  207  ALA ALA VAL ALA SER ALA VAL ASN SER PHE ASN SER GLN          
SEQRES   7 A  207  CYS PRO SER THR LYS ILE VAL LEU VAL GLY TYR SER GLN          
SEQRES   8 A  207  GLY GLY GLU ILE MET ASP VAL ALA LEU CYS GLY GLY GLY          
SEQRES   9 A  207  ASP PRO ASN GLN GLY TYR THR ASN THR ALA VAL GLN LEU          
SEQRES  10 A  207  SER SER SER ALA VAL ASN MET VAL LYS ALA ALA ILE PHE          
SEQRES  11 A  207  MET GLY ASP PRO MET PHE ARG ALA GLY LEU SER TYR GLU          
SEQRES  12 A  207  VAL GLY THR CYS ALA ALA GLY GLY PHE ASP GLN ARG PRO          
SEQRES  13 A  207  ALA GLY PHE SER CYS PRO SER ALA ALA LYS ILE LYS SER          
SEQRES  14 A  207  TYR CYS ASP ALA SER ASP PRO TYR CYS CYS ASN GLY SER          
SEQRES  15 A  207  ASN ALA ALA THR HIS GLN GLY TYR GLY SER GLU TYR GLY          
SEQRES  16 A  207  SER GLN ALA LEU ALA PHE VAL LYS SER LYS LEU GLY              
HET    SO4  A 210       5                                                       
HET    SO4  A 211       5                                                       
HET    SO4  A 212       5                                                       
HET    SO4  A 213       5                                                       
HET    GOL  A 220       6                                                       
HET    GOL  A 222       6                                                       
HET    GOL  A 223       6                                                       
HET    GOL  A 224       6                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   2  SO4    4(O4 S 2-)                                                   
FORMUL   6  GOL    4(C3 H8 O3)                                                  
FORMUL  10  HOH   *299(H2 O)                                                    
HELIX    1   1 TYR A   19  SER A   21  5                                   3    
HELIX    2   2 SER A   22  TYR A   33  1                                  12    
HELIX    3   3 GLN A   49  GLY A   53  5                                   5    
HELIX    4   4 SER A   56  CYS A   79  1                                  24    
HELIX    5   5 SER A   90  GLY A  102  1                                  13    
HELIX    6   6 PRO A  106  GLY A  109  5                                   4    
HELIX    7   7 SER A  118  MET A  124  1                                   7    
HELIX    8   8 SER A  163  ALA A  165  5                                   3    
HELIX    9   9 ASN A  183  GLY A  189  1                                   7    
HELIX   10  10 GLY A  189  GLY A  207  1                                  19    
SHEET    1   A 6 THR A  37  ALA A  40  0                                        
SHEET    2   A 6 ILE A   5  ALA A  10  1  O  ILE A   5   N  THR A  37           
SHEET    3   A 6 LYS A  83  TYR A  89  1  O  LYS A  83   N  HIS A   6           
SHEET    4   A 6 VAL A 125  MET A 131  1  N  LYS A 126   O  ILE A  84           
SHEET    5   A 6 ILE A 167  TYR A 170  1  O  LYS A 168   N  PHE A 130           
SHEET    6   A 6 GLU A 143  VAL A 144  1  N  VAL A 144   O  SER A 169           
SSBOND   1 CYS A    2    CYS A   79                          1555   1555  2.05  
SSBOND   2 CYS A   46    CYS A   52                          1555   1555  2.06  
SSBOND   3 CYS A  101    CYS A  161                          1555   1555  2.05  
SSBOND   4 CYS A  147    CYS A  179                          1555   1555  2.09  
SSBOND   5 CYS A  171    CYS A  178                          1555   1555  2.03  
SITE     1 AC1 11 GLU A  12  THR A  13  SER A  90  GLN A  91                    
SITE     2 AC1 11 HIS A 187  GOL A 220  GOL A 222  HOH A 465                    
SITE     3 AC1 11 HOH A 473  HOH A 488  HOH A 489                               
SITE     1 AC2  8 THR A 146  ASP A 172  ALA A 173  SER A 174                    
SITE     2 AC2  8 HOH A 436  HOH A 453  HOH A 532  HOH A 567                    
SITE     1 AC3  4 SER A   1  ALA A  55  SER A  56  SER A  59                    
SITE     1 AC4  5 THR A  24  SER A  70  ASN A  73  HOH A 500                    
SITE     2 AC4  5 HOH A 590                                                     
SITE     1 AC5 10 TYR A  57  PHE A 152  TYR A 177  SO4 A 210                    
SITE     2 AC5 10 GOL A 222  HOH A 333  HOH A 359  HOH A 473                    
SITE     3 AC5 10 HOH A 599  HOH A 600                                          
SITE     1 AC6 11 THR A  13  GLY A  47  GLN A  49  TYR A  57                    
SITE     2 AC6 11 SO4 A 210  GOL A 220  HOH A 532  HOH A 550                    
SITE     3 AC6 11 HOH A 561  HOH A 568  HOH A 589                               
SITE     1 AC7  8 LEU A 140  SER A 141  TYR A 142  SER A 160                    
SITE     2 AC7  8 CYS A 161  ALA A 164  HOH A 393  HOH A 526                    
SITE     1 AC8  5 SER A  50  SER A  74  SER A  77  HOH A 346                    
SITE     2 AC8  5 HOH A 530                                                     
CRYST1   34.541   59.898   71.392  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      0.028951  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.016695  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014007        0.00000