PDB Short entry for 1ACJ
HEADER    HYDROLASE(CARBOXYLIC ESTERASE)          18-AUG-93   1ACJ              
TITLE     QUATERNARY LIGAND BINDING TO AROMATIC RESIDUES IN THE ACTIVE-SITE     
TITLE    2 GORGE OF ACETYLCHOLINESTERASE                                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ACETYLCHOLINESTERASE;                                      
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.1.1.7;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: TORPEDO CALIFORNICA;                            
SOURCE   3 ORGANISM_COMMON: PACIFIC ELECTRIC RAY;                               
SOURCE   4 ORGANISM_TAXID: 7787                                                 
KEYWDS    HYDROLASE(CARBOXYLIC ESTERASE)                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.L.SUSSMAN,M.HAREL,I.SILMAN                                          
REVDAT   5   25-AUG-21 1ACJ    1       REMARK                                   
REVDAT   4   29-JUN-16 1ACJ    1       REMARK VERSN                             
REVDAT   3   24-FEB-09 1ACJ    1       VERSN                                    
REVDAT   2   01-APR-03 1ACJ    1       JRNL                                     
REVDAT   1   31-AUG-94 1ACJ    0                                                
JRNL        AUTH   M.HAREL,I.SCHALK,L.EHRET-SABATIER,F.BOUET,M.GOELDNER,        
JRNL        AUTH 2 C.HIRTH,P.H.AXELSEN,I.SILMAN,J.L.SUSSMAN                     
JRNL        TITL   QUATERNARY LIGAND BINDING TO AROMATIC RESIDUES IN THE        
JRNL        TITL 2 ACTIVE-SITE GORGE OF ACETYLCHOLINESTERASE.                   
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V.  90  9031 1993              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   8415649                                                      
JRNL        DOI    10.1073/PNAS.90.19.9031                                      
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   J.SUSSMAN,M.HAREL,F.FROLOW,C.OEFNER,A.GOLDMAN,L.TOKER,       
REMARK   1  AUTH 2 I.SILMAN                                                     
REMARK   1  TITL   ATOMIC STRUCTURE OF ACETYLCHOLINESTERASE FROM TORPEDO        
REMARK   1  TITL 2 CALIFORNICA: A PROTOTYPIC ACETYLCHOLINE-BINDING PROTEIN      
REMARK   1  REF    SCIENCE                       V. 253   872 1991              
REMARK   1  REFN                   ISSN 0036-8075                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR                                               
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
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)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 23213                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.195                           
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
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            : 4095                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 15                                      
REMARK   3   SOLVENT ATOMS            : 82                                      
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) : 0.025                           
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
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) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  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  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS:                                           
REMARK   3  THE STRUCTURE WAS REFINED STARTING FROM NATIVE COORDINATES          
REMARK   3  USING X-PLOR.  82 WATER MOLECULES ARE INCLUDED.                     
REMARK   4                                                                      
REMARK   4 1ACJ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000170654.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 70.97                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.24                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+2/3                                           
REMARK 290       6555   -X,-X+Y,-Z+1/3                                          
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       46.03333            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       92.06667            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       92.06667            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       46.03333            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2940 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 35930 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -12.0 KCAL/MOL                        
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 350   BIOMT1   2 -0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.866025  0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      138.10000            
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     ASP A     1                                                      
REMARK 465     ASP A     2                                                      
REMARK 465     HIS A     3                                                      
REMARK 465     HIS A   486                                                      
REMARK 465     SER A   487                                                      
REMARK 465     GLN A   488                                                      
REMARK 465     GLU A   489                                                      
REMARK 465     GLU A   536                                                      
REMARK 465     THR A   537                                                      
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     ARG A  19    NE   CZ   NH1  NH2                                  
REMARK 470     HIS A  26    CG   ND1  CD2  CE1  NE2                             
REMARK 470     ASN A  42    CG   OD1  ND2                                       
REMARK 470     ARG A  46    CZ   NH1  NH2                                       
REMARK 470     GLN A  74    OE1  NE2                                            
REMARK 470     ARG A  88    NH1  NH2                                            
REMARK 470     GLU A  89    CD   OE1  OE2                                       
REMARK 470     LYS A 107    CG   CD   CE   NZ                                   
REMARK 470     GLN A 162    CD   OE1  NE2                                       
REMARK 470     GLU A 163    OE1  OE2                                            
REMARK 470     ASN A 253    OD1  ND2                                            
REMARK 470     ASN A 257    CG   OD1  ND2                                       
REMARK 470     GLU A 260    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 261    CD   OE1  OE2                                       
REMARK 470     GLU A 268    CD   OE1  OE2                                       
REMARK 470     LYS A 270    CD   CE   NZ                                        
REMARK 470     PHE A 284    CD1  CD2  CE1  CE2  CZ                              
REMARK 470     SER A 286    OG                                                  
REMARK 470     GLU A 299    CD   OE1  OE2                                       
REMARK 470     ASN A 310    CG   OD1  ND2                                       
REMARK 470     LYS A 325    NZ                                                  
REMARK 470     GLU A 344    CD   OE1  OE2                                       
REMARK 470     GLU A 350    CD   OE1  OE2                                       
REMARK 470     MET A 353    SD   CE                                             
REMARK 470     ASP A 365    CG   OD1  OD2                                       
REMARK 470     ASN A 382    CG   OD1  ND2                                       
REMARK 470     LYS A 413    CE   NZ                                             
REMARK 470     GLU A 434    CD   OE1  OE2                                       
REMARK 470     GLU A 455    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 461    CD   OE1  OE2                                       
REMARK 470     LYS A 478    CE   NZ                                             
REMARK 470     GLU A 484    CD   OE1  OE2                                       
REMARK 470     LYS A 498    CG   CD   CE   NZ                                   
REMARK 470     GLU A 499    CD   OE1  OE2                                       
REMARK 470     GLU A 508    CD   OE1  OE2                                       
REMARK 470     LYS A 511    CD   CE   NZ                                        
REMARK 470     ARG A 515    CZ   NH1  NH2                                       
REMARK 470     GLN A 526    CD   OE1  NE2                                       
REMARK 470     ASN A 533    CG   OD1  ND2                                       
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    TRP A  54   CE2   TRP A  54   CD2     0.076                       
REMARK 500    HIS A 159   CG    HIS A 159   CD2     0.060                       
REMARK 500    TRP A 179   CE2   TRP A 179   CD2     0.079                       
REMARK 500    HIS A 181   CG    HIS A 181   CD2     0.066                       
REMARK 500    HIS A 209   CG    HIS A 209   CD2     0.064                       
REMARK 500    TRP A 233   CE2   TRP A 233   CD2     0.077                       
REMARK 500    HIS A 264   CG    HIS A 264   CD2     0.068                       
REMARK 500    TRP A 279   CE2   TRP A 279   CD2     0.079                       
REMARK 500    HIS A 362   CG    HIS A 362   CD2     0.057                       
REMARK 500    HIS A 398   CG    HIS A 398   CD2     0.066                       
REMARK 500    HIS A 406   CG    HIS A 406   CD2     0.060                       
REMARK 500    HIS A 425   CG    HIS A 425   CD2     0.060                       
REMARK 500    TRP A 432   CE2   TRP A 432   CD2     0.074                       
REMARK 500    TRP A 435   CE2   TRP A 435   CD2     0.075                       
REMARK 500    HIS A 440   CG    HIS A 440   CD2     0.064                       
REMARK 500    HIS A 471   CG    HIS A 471   CD2     0.061                       
REMARK 500    TRP A 473   CE2   TRP A 473   CD2     0.072                       
REMARK 500    HIS A 513   CG    HIS A 513   CD2     0.063                       
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    ARG A  47   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES          
REMARK 500    ARG A  47   NE  -  CZ  -  NH2 ANGL. DEV. =  -7.7 DEGREES          
REMARK 500    ARG A 216   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.3 DEGREES          
REMARK 500    ARG A 267   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    SER A 343   N   -  CA  -  CB  ANGL. DEV. =  -9.5 DEGREES          
REMARK 500    PHE A 414   CB  -  CG  -  CD2 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500    PHE A 414   CB  -  CG  -  CD1 ANGL. DEV. =   8.0 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    GLU A   5      -54.44     82.74                                   
REMARK 500    LEU A  23     -117.52     58.24                                   
REMARK 500    SER A  25     -148.71   -130.90                                   
REMARK 500    PHE A  45      -13.00     77.90                                   
REMARK 500    ALA A  60       54.33   -114.64                                   
REMARK 500    CYS A  94       10.02   -140.13                                   
REMARK 500    PHE A 120       -7.55     71.73                                   
REMARK 500    HIS A 159      -71.17    -18.74                                   
REMARK 500    ASN A 167       18.23     45.27                                   
REMARK 500    ASN A 183       -2.07   -150.41                                   
REMARK 500    THR A 193       51.16   -142.72                                   
REMARK 500    SER A 200     -122.35     61.05                                   
REMARK 500    ARG A 220      -67.37    -99.61                                   
REMARK 500    GLU A 299      -76.18   -107.66                                   
REMARK 500    ASP A 326       78.45   -116.39                                   
REMARK 500    SER A 329      -63.42    -24.13                                   
REMARK 500    SER A 345       69.41     30.02                                   
REMARK 500    VAL A 360       65.15   -118.47                                   
REMARK 500    ASP A 380       30.81   -162.16                                   
REMARK 500    ASP A 381      -55.24    -23.32                                   
REMARK 500    VAL A 400      -54.20   -133.32                                   
REMARK 500    ASN A 416       40.81   -109.87                                   
REMARK 500    LYS A 498      -73.98    -69.78                                   
REMARK 500    GLN A 500       73.98    -63.70                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    TYR A 442         0.06    SIDE CHAIN                              
REMARK 500    TYR A 458         0.07    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600                                                                      
REMARK 600 RESIDUE THA 999 IS BOUND NON-COVALENTLY IN THE ACTIVE SITE.          
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: THA                                                 
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THA A 999                 
DBREF  1ACJ A    1   535  UNP    P04058   ACES_TORCA      22    556             
SEQRES   1 A  537  ASP ASP HIS SER GLU LEU LEU VAL ASN THR LYS SER GLY          
SEQRES   2 A  537  LYS VAL MET GLY THR ARG VAL PRO VAL LEU SER SER HIS          
SEQRES   3 A  537  ILE SER ALA PHE LEU GLY ILE PRO PHE ALA GLU PRO PRO          
SEQRES   4 A  537  VAL GLY ASN MET ARG PHE ARG ARG PRO GLU PRO LYS LYS          
SEQRES   5 A  537  PRO TRP SER GLY VAL TRP ASN ALA SER THR TYR PRO ASN          
SEQRES   6 A  537  ASN CYS GLN GLN TYR VAL ASP GLU GLN PHE PRO GLY PHE          
SEQRES   7 A  537  SER GLY SER GLU MET TRP ASN PRO ASN ARG GLU MET SER          
SEQRES   8 A  537  GLU ASP CYS LEU TYR LEU ASN ILE TRP VAL PRO SER PRO          
SEQRES   9 A  537  ARG PRO LYS SER THR THR VAL MET VAL TRP ILE TYR GLY          
SEQRES  10 A  537  GLY GLY PHE TYR SER GLY SER SER THR LEU ASP VAL TYR          
SEQRES  11 A  537  ASN GLY LYS TYR LEU ALA TYR THR GLU GLU VAL VAL LEU          
SEQRES  12 A  537  VAL SER LEU SER TYR ARG VAL GLY ALA PHE GLY PHE LEU          
SEQRES  13 A  537  ALA LEU HIS GLY SER GLN GLU ALA PRO GLY ASN VAL GLY          
SEQRES  14 A  537  LEU LEU ASP GLN ARG MET ALA LEU GLN TRP VAL HIS ASP          
SEQRES  15 A  537  ASN ILE GLN PHE PHE GLY GLY ASP PRO LYS THR VAL THR          
SEQRES  16 A  537  ILE PHE GLY GLU SER ALA GLY GLY ALA SER VAL GLY MET          
SEQRES  17 A  537  HIS ILE LEU SER PRO GLY SER ARG ASP LEU PHE ARG ARG          
SEQRES  18 A  537  ALA ILE LEU GLN SER GLY SER PRO ASN CYS PRO TRP ALA          
SEQRES  19 A  537  SER VAL SER VAL ALA GLU GLY ARG ARG ARG ALA VAL GLU          
SEQRES  20 A  537  LEU GLY ARG ASN LEU ASN CYS ASN LEU ASN SER ASP GLU          
SEQRES  21 A  537  GLU LEU ILE HIS CYS LEU ARG GLU LYS LYS PRO GLN GLU          
SEQRES  22 A  537  LEU ILE ASP VAL GLU TRP ASN VAL LEU PRO PHE ASP SER          
SEQRES  23 A  537  ILE PHE ARG PHE SER PHE VAL PRO VAL ILE ASP GLY GLU          
SEQRES  24 A  537  PHE PHE PRO THR SER LEU GLU SER MET LEU ASN SER GLY          
SEQRES  25 A  537  ASN PHE LYS LYS THR GLN ILE LEU LEU GLY VAL ASN LYS          
SEQRES  26 A  537  ASP GLU GLY SER PHE PHE LEU LEU TYR GLY ALA PRO GLY          
SEQRES  27 A  537  PHE SER LYS ASP SER GLU SER LYS ILE SER ARG GLU ASP          
SEQRES  28 A  537  PHE MET SER GLY VAL LYS LEU SER VAL PRO HIS ALA ASN          
SEQRES  29 A  537  ASP LEU GLY LEU ASP ALA VAL THR LEU GLN TYR THR ASP          
SEQRES  30 A  537  TRP MET ASP ASP ASN ASN GLY ILE LYS ASN ARG ASP GLY          
SEQRES  31 A  537  LEU ASP ASP ILE VAL GLY ASP HIS ASN VAL ILE CYS PRO          
SEQRES  32 A  537  LEU MET HIS PHE VAL ASN LYS TYR THR LYS PHE GLY ASN          
SEQRES  33 A  537  GLY THR TYR LEU TYR PHE PHE ASN HIS ARG ALA SER ASN          
SEQRES  34 A  537  LEU VAL TRP PRO GLU TRP MET GLY VAL ILE HIS GLY TYR          
SEQRES  35 A  537  GLU ILE GLU PHE VAL PHE GLY LEU PRO LEU VAL LYS GLU          
SEQRES  36 A  537  LEU ASN TYR THR ALA GLU GLU GLU ALA LEU SER ARG ARG          
SEQRES  37 A  537  ILE MET HIS TYR TRP ALA THR PHE ALA LYS THR GLY ASN          
SEQRES  38 A  537  PRO ASN GLU PRO HIS SER GLN GLU SER LYS TRP PRO LEU          
SEQRES  39 A  537  PHE THR THR LYS GLU GLN LYS PHE ILE ASP LEU ASN THR          
SEQRES  40 A  537  GLU PRO MET LYS VAL HIS GLN ARG LEU ARG VAL GLN MET          
SEQRES  41 A  537  CYS VAL PHE TRP ASN GLN PHE LEU PRO LYS LEU LEU ASN          
SEQRES  42 A  537  ALA THR GLU THR                                              
HET    THA  A 999      15                                                       
HETNAM     THA TACRINE                                                          
FORMUL   2  THA    C13 H14 N2                                                   
FORMUL   3  HOH   *82(H2 O)                                                     
HELIX    1  H1 SER A   79  ASN A   85  1                                   7    
HELIX    2  H2 GLY A  132  GLU A  139  1                                   8    
HELIX    3  H3 VAL A  168  ASN A  183  1                                  16    
HELIX    4  H4 SER A  200  LEU A  211  1                                  12    
HELIX    5  H5 VAL A  238  LEU A  252  1                                  15    
HELIX    6  H6 ASP A  259  GLU A  268  1                                  10    
HELIX    7  H7 PRO A  271  GLU A  278  1                                   8    
HELIX    8  H8 LEU A  305  SER A  311  1                                   7    
HELIX    9  H9 SER A  329  GLY A  335  1                                   7    
HELIX   10 H10 ARG A  349  VAL A  360  1                                  12    
HELIX   11 H11 ASP A  365  THR A  376  1                                  12    
HELIX   12 H12 GLY A  384  TYR A  411  1                                  28    
HELIX   13 H13 GLU A  443  PHE A  448  1                                   6    
HELIX   14 H14 ALA A  460  THR A  479  1                                  20    
HELIX   15 H15 VAL A  518  ALA A  534  1                                  17    
SHEET    1  S112 LEU A   6  THR A  10  0                                        
SHEET    2  S112 GLY A  13  MET A  16 -1                                        
SHEET    3  S112 THR A  18  PRO A  21 -1                                        
SHEET    4  S112 HIS A  26  PRO A  34 -1                                        
SHEET    5  S112 VAL A  57  ALA A  60 -1                                        
SHEET    6  S112 TYR A  96  PRO A 102 -1                                        
SHEET    7  S112 VAL A 142  SER A 147 -1                                        
SHEET    8  S112 THR A 109  TYR A 116  1                                        
SHEET    9  S112 THR A 193  GLU A 199  1                                        
SHEET   10  S112 ARG A 220  SER A 226  1                                        
SHEET   11  S112 GLN A 318  TYR A 334  1                                        
SHEET   12  S112 GLY A 417  PHE A 423  1                                        
SHEET    1  S2 2 PHE A 502  LEU A 505  0                                        
SHEET    2  S2 2 MET A 510  GLN A 514 -1                                        
SSBOND   1 CYS A   67    CYS A   94                          1555   1555  2.04  
SSBOND   2 CYS A  254    CYS A  265                          1555   1555  2.03  
SSBOND   3 CYS A  402    CYS A  521                          1555   1555  2.07  
CISPEP   1 SER A  103    PRO A  104          0        -4.12                     
SITE     1 THA  4 SER A 200  HIS A 440  GLU A 327  THA A 999                    
SITE     1 AC1  7 TRP A  84  GLY A 118  GLU A 199  PHE A 330                    
SITE     2 AC1  7 TRP A 432  HIS A 440  GLY A 441                               
CRYST1  113.700  113.700  138.100  90.00  90.00 120.00 P 31 2 1      6          
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      0.008795  0.005078  0.000000        0.00000                         
SCALE2      0.000000  0.010156  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007241        0.00000