PDB Short entry for 1F2O
HEADER    HYDROLASE                               28-MAY-00   1F2O              
TITLE     CRYSTAL STRUCTURE OF THE STREPTOMYCES GRISEUS                         
TITLE    2 AMINOPEPTIDASE COMPLEXED WITH L-LEUCINE                              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: AMINOPEPTIDASE;                                            
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: SGAP;                                                       
COMPND   5 EC: 3.4.11.-                                                         
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STREPTOMYCES GRISEUS;                           
SOURCE   3 ORGANISM_TAXID: 1911;                                                
SOURCE   4 OTHER_DETAILS: THE ENZYME IS ISOLATED FROM THE                       
SOURCE   5 COMMERCIALLY AVAILABLE ENZYME MIXTURE "PRONASE E"                    
KEYWDS    HYDROLASE, AMINOPEPTIDASE, DOUBLE_ZINC METALLOPROTEINASE              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.GILBOA,A.SPUNGIN-BIALIK,G.WOHLFAHRT,D.SCHOMBURG,                    
AUTHOR   2 S.BLUMBERG,G.SHOHAM                                                  
REVDAT   2   24-FEB-09 1F2O    1       VERSN                                    
REVDAT   1   22-AUG-01 1F2O    0                                                
JRNL        AUTH   R.GILBOA,A.SPUNGIN-BIALIK,G.WOHLFAHRT,D.SCHOMBURG,           
JRNL        AUTH 2 S.BLUMBERG,G.SHOHAM                                          
JRNL        TITL   INTERACTIONS OF STREPTOMYCES GRISEUS                         
JRNL        TITL 2 AMINOPEPTIDASE WITH AMINO ACID REACTION PRODUCTS             
JRNL        TITL 3 AND THEIR IMPLICATIONS TOWARD A CATALYTIC                    
JRNL        TITL 4 MECHANISM.                                                   
JRNL        REF    PROTEINS                      V.  44   490 2001              
JRNL        REFN                   ISSN 0887-3585                               
JRNL        PMID   11484227                                                     
JRNL        DOI    10.1002/PROT.1115                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   R.GILBOA,H.M.GREENBLATT,M.PERACH,A.SPUNGIN-BIALIK,           
REMARK   1  AUTH 2 U.LESSEL,G.WOHLFAHRT,D.SCHOMBURG,S.BLUMBERG,                 
REMARK   1  AUTH 3 G.SHOHAM                                                     
REMARK   1  TITL   INTERACTIONS OF STREPTOMYCES GRISEUS                         
REMARK   1  TITL 2 AMINOPEPTIDASE WITH A METHIONINE PRODUCT ANALOGUE:           
REMARK   1  TITL 3 A STRUCTURAL STUDY AT 1.53 A RESOLUTION.                     
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  56   551 2000              
REMARK   1  REFN                   ISSN 0907-4449                               
REMARK   1  DOI    10.1107/S0907444900002420                                    
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   G.PAPIR,A.SPUNGIN-BIALIK,D.BEN-MEIR,E.FUDIM,                 
REMARK   1  AUTH 2 R.GILBOA,H.M.GREENBLATT,G.SHOHAM,U.LESSEL,                   
REMARK   1  AUTH 3 D.SCHOMBURG,R.ASHKENAZI,S.BLUMBERG                           
REMARK   1  TITL   INHIBITION OF STREPTOMYCES GRISEUS AMINOPEPTIDASE            
REMARK   1  TITL 2 AND EFFECTS OF CALCIUM IONS ON CATALYSIS AND                 
REMARK   1  TITL 3 BINDING--COMPARISONS WITH THE HOMOLOGOUS ENZYME              
REMARK   1  TITL 4 AEROMONAS PROTEOLYTICA AMINOPEPTIDASE.                       
REMARK   1  REF    EUR.J.BIOCHEM.                V. 258   313 1998              
REMARK   1  REFN                   ISSN 0014-2956                               
REMARK   1  DOI    10.1046/J.1432-1327.1998.2580313.X                           
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   H.M.GREENBLATT,O.ALMOG,B.MARAS,A.SPUNGIN-BIALIK,             
REMARK   1  AUTH 2 D.BARRA,S.BLUMBERG,G.SHOHAM                                  
REMARK   1  TITL   STREPTOMYCES GRISEUS AMINOPEPTIDASE: X-RAY                   
REMARK   1  TITL 2 CRYSTALLOGRAPHIC STRUCTURE AT 1.75A RESOLUTION.              
REMARK   1  REF    J.MOL.BIOL.                   V. 265   620 1997              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1  DOI    10.1006/JMBI.1996.0729                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 0.4                                              
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 : NULL                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 2022330.600                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 95.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 31106                          
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) : 0.147                           
REMARK   3   FREE R VALUE                     : 0.175                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 7.500                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2348                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.004                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.81                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 84.20                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 4135                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1850                       
REMARK   3   BIN FREE R VALUE                    : 0.2310                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 7.00                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 311                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.013                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2044                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 12                                      
REMARK   3   SOLVENT ATOMS            : 203                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 15.00                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 17.60                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.59000                                              
REMARK   3    B22 (A**2) : 0.59000                                              
REMARK   3    B33 (A**2) : -1.18000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.14                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.09                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.18                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.14                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.018                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.80                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.80                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.19                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.550 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.280 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 3.300 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 4.570 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.36                                                 
REMARK   3   BSOL        : 51.05                                                
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  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  4  : CIS_PEPTIDE.PARAM                              
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1F2O COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-JUN-00.                  
REMARK 100 THE RCSB ID CODE IS RCSB011169.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 09-JUL-98; 09-JUL-98               
REMARK 200  TEMPERATURE           (KELVIN) : 298; 298                           
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 2                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y; Y                               
REMARK 200  RADIATION SOURCE               : NSLS; NSLS                         
REMARK 200  BEAMLINE                       : X26C; X25                          
REMARK 200  X-RAY GENERATOR MODEL          : NULL; NULL                         
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M; NULL                            
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.125; 1.1                         
REMARK 200  MONOCHROMATOR                  : NULL; NULL                         
REMARK 200  OPTICS                         : NULL; NULL                         
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE; CCD                   
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH; BRANDEIS - B4         
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 31106                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.8                               
REMARK 200  DATA REDUNDANCY                : 5.000                              
REMARK 200  R MERGE                    (I) : 0.08300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.73                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 79.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.17600                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; NULL                        
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 48.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.37                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG4000, AMMUNIUM SULFATE , VAPOR        
REMARK 280  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       73.43500            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       30.99500            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       30.99500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       36.71750            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       30.99500            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       30.99500            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000      110.15250            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       30.99500            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       30.99500            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       36.71750            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       30.99500            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       30.99500            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000      110.15250            
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       73.43500            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLY A   278                                                      
REMARK 465     THR A   279                                                      
REMARK 465     GLY A   280                                                      
REMARK 465     GLU A   281                                                      
REMARK 465     PRO A   282                                                      
REMARK 465     PRO A   283                                                      
REMARK 465     THR A   284                                                      
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     ASP A 200    CB   CG   OD1  OD2                                  
REMARK 470     ARG A 202    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ALA A 228    CB                                                  
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    PRO A 167   N   -  CA  -  C   ANGL. DEV. =  16.6 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    MET A 161       90.00     71.75                                   
REMARK 500    ASP A 173       59.23   -112.00                                   
REMARK 500    ASP A 174     -109.29   -107.69                                   
REMARK 500    ASP A 200     -132.42     62.29                                   
REMARK 500    ALA A 222     -114.33   -126.02                                   
REMARK 500    SER A 252     -168.12   -119.79                                   
REMARK 500    ASN A 255       37.92    -92.88                                   
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 156         0.07    SIDE_CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620  (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;              
REMARK 620  SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                            
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 901  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  97   OD1                                                    
REMARK 620 2 ASP A 160   OD1 109.2                                              
REMARK 620 3 HIS A  85   NE2 100.6 101.8                                        
REMARK 620 4 LEU A 903   OXT 105.9 135.7  97.5                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 902  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 247   NE2                                                    
REMARK 620 2 ASP A  97   OD2  94.4                                              
REMARK 620 3 GLU A 132   OE1  89.4 154.6                                        
REMARK 620 4 GLU A 132   OE2 113.8 101.6  54.3                                  
REMARK 620 5 LEU A 903   OXT 146.9 103.8  85.9  89.6                            
REMARK 620 6 LEU A 903   O    96.9 108.8  95.7 134.6  51.3                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 905  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 262   OD1                                                    
REMARK 620 2 HOH A 349   O    82.0                                              
REMARK 620 3 ASP A   3   OD1 170.6  95.4                                        
REMARK 620 4 ASP A 266   OD2  88.0 151.8  90.1                                  
REMARK 620 5 HOH A 519   O    86.4  78.6  84.2  74.4                            
REMARK 620 6 ASP A 266   OD1 101.0 156.4  84.9  51.6 124.8                      
REMARK 620 7 ILE A   4   O   100.7  77.3  87.5 130.7 153.6  79.2                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 901                  
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 902                  
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 905                  
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE LEU A 903                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1XJO   RELATED DB: PDB                                   
REMARK 900 1XJO CONTAINS THE NATIVE FORM OF THE SAME PROTEIN                    
REMARK 900 RELATED ID: 1CP7   RELATED DB: PDB                                   
REMARK 900 1CP7 CONTAINS THE NATIVE FORM OF THE SAME PROTEIN                    
REMARK 900 RELATED ID: 1QQ9   RELATED DB: PDB                                   
REMARK 900 1QQ9 CONTAINS THE SAME PROTEIN COMPLEXED WITH L-METHIONINE           
REMARK 900 RELATED ID: 1F2P   RELATED DB: PDB                                   
REMARK 900 1F2P CONTAINS THE SAME PROTEIN COMPLEXED WITH L-                     
REMARK 900 PHENYLALANINE                                                        
DBREF  1F2O A    1   284  UNP    P80561   APX_STRGR        1    284             
SEQRES   1 A  284  ALA PRO ASP ILE PRO LEU ALA ASN VAL LYS ALA HIS LEU          
SEQRES   2 A  284  THR GLN LEU SER THR ILE ALA ALA ASN ASN GLY GLY ASN          
SEQRES   3 A  284  ARG ALA HIS GLY ARG PRO GLY TYR LYS ALA SER VAL ASP          
SEQRES   4 A  284  TYR VAL LYS ALA LYS LEU ASP ALA ALA GLY TYR THR THR          
SEQRES   5 A  284  THR LEU GLN GLN PHE THR SER GLY GLY ALA THR GLY TYR          
SEQRES   6 A  284  ASN LEU ILE ALA ASN TRP PRO GLY GLY ASP PRO ASN LYS          
SEQRES   7 A  284  VAL LEU MET ALA GLY ALA HIS LEU ASP SER VAL SER SER          
SEQRES   8 A  284  GLY ALA GLY ILE ASN ASP ASN GLY SER GLY SER ALA ALA          
SEQRES   9 A  284  VAL LEU GLU THR ALA LEU ALA VAL SER ARG ALA GLY TYR          
SEQRES  10 A  284  GLN PRO ASP LYS HIS LEU ARG PHE ALA TRP TRP GLY ALA          
SEQRES  11 A  284  GLU GLU LEU GLY LEU ILE GLY SER LYS PHE TYR VAL ASN          
SEQRES  12 A  284  ASN LEU PRO SER ALA ASP ARG SER LYS LEU ALA GLY TYR          
SEQRES  13 A  284  LEU ASN PHE ASP MET ILE GLY SER PRO ASN PRO GLY TYR          
SEQRES  14 A  284  PHE VAL TYR ASP ASP ASP PRO VAL ILE GLU LYS THR PHE          
SEQRES  15 A  284  LYS ASN TYR PHE ALA GLY LEU ASN VAL PRO THR GLU ILE          
SEQRES  16 A  284  GLU THR GLU GLY ASP GLY ARG SER ASP HIS ALA PRO PHE          
SEQRES  17 A  284  LYS ASN VAL GLY VAL PRO VAL GLY GLY LEU PHE THR GLY          
SEQRES  18 A  284  ALA GLY TYR THR LYS SER ALA ALA GLN ALA GLN LYS TRP          
SEQRES  19 A  284  GLY GLY THR ALA GLY GLN ALA PHE ASP ARG CYS TYR HIS          
SEQRES  20 A  284  SER SER CYS ASP SER LEU SER ASN ILE ASN ASP THR ALA          
SEQRES  21 A  284  LEU ASP ARG ASN SER ASP ALA ALA ALA HIS ALA ILE TRP          
SEQRES  22 A  284  THR LEU SER SER GLY THR GLY GLU PRO PRO THR                  
HET     ZN  A 901       1                                                       
HET     ZN  A 902       1                                                       
HET     CA  A 905       1                                                       
HET    LEU  A 903       9                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM      CA CALCIUM ION                                                      
HETNAM     LEU LEUCINE                                                          
FORMUL   2   ZN    2(ZN 2+)                                                     
FORMUL   4   CA    CA 2+                                                        
FORMUL   5  LEU    C6 H13 N O2                                                  
FORMUL   6  HOH   *203(H2 O)                                                    
HELIX    1   1 PRO A    5  ASN A   23  1                                  19    
HELIX    2   2 ARG A   31  ALA A   48  1                                  18    
HELIX    3   3 ASN A   98  GLY A  116  1                                  19    
HELIX    4   4 ALA A  130  GLY A  134  5                                   5    
HELIX    5   5 LEU A  135  ASN A  144  1                                  10    
HELIX    6   6 PRO A  146  SER A  151  1                                   6    
HELIX    7   7 ASP A  175  LEU A  189  1                                  15    
HELIX    8   8 HIS A  205  VAL A  211  1                                   7    
HELIX    9   9 SER A  227  GLY A  235  1                                   9    
HELIX   10  10 ASN A  257  SER A  276  1                                  20    
SHEET    1   A 8 THR A  51  SER A  59  0                                        
SHEET    2   A 8 ALA A  62  ASN A  70 -1  O  ALA A  62   N  SER A  59           
SHEET    3   A 8 LYS A 121  TRP A 128 -1  O  PHE A 125   N  ALA A  69           
SHEET    4   A 8 ASP A  75  HIS A  85  1  O  ASP A  75   N  HIS A 122           
SHEET    5   A 8 LEU A 153  PHE A 159  1  N  ALA A 154   O  VAL A  79           
SHEET    6   A 8 VAL A 215  PHE A 219  1  O  GLY A 216   N  ASN A 158           
SHEET    7   A 8 PHE A 170  VAL A 171 -1  N  PHE A 170   O  PHE A 219           
SHEET    8   A 8 GLU A 194  ILE A 195  1  O  GLU A 194   N  VAL A 171           
SSBOND   1 CYS A  245    CYS A  250                          1555   1555  2.06  
LINK        ZN    ZN A 901                 OD1 ASP A  97     1555   1555  2.11  
LINK        ZN    ZN A 901                 OD1 ASP A 160     1555   1555  2.06  
LINK        ZN    ZN A 901                 NE2 HIS A  85     1555   1555  2.01  
LINK        ZN    ZN A 901                 OXT LEU A 903     1555   1555  2.22  
LINK        ZN    ZN A 902                 NE2 HIS A 247     1555   1555  2.04  
LINK        ZN    ZN A 902                 OD2 ASP A  97     1555   1555  2.04  
LINK        ZN    ZN A 902                 OE1 GLU A 132     1555   1555  2.64  
LINK        ZN    ZN A 902                 OE2 GLU A 132     1555   1555  2.05  
LINK        ZN    ZN A 902                 OXT LEU A 903     1555   1555  2.68  
LINK        ZN    ZN A 902                 O   LEU A 903     1555   1555  2.09  
LINK        CA    CA A 905                 OD1 ASP A 262     1555   1555  2.29  
LINK        CA    CA A 905                 O   HOH A 349     1555   1555  2.49  
LINK        CA    CA A 905                 OD1 ASP A   3     1555   1555  2.28  
LINK        CA    CA A 905                 OD2 ASP A 266     1555   1555  2.52  
LINK        CA    CA A 905                 O   HOH A 519     1555   1555  2.52  
LINK        CA    CA A 905                 OD1 ASP A 266     1555   1555  2.53  
LINK        CA    CA A 905                 O   ILE A   4     1555   1555  2.44  
CISPEP   1 ASP A   97    ASN A   98          0         0.60                     
SITE     1 AC1  4 HIS A  85  ASP A  97  ASP A 160  LEU A 903                    
SITE     1 AC2  4 ASP A  97  GLU A 132  HIS A 247  LEU A 903                    
SITE     1 AC3  6 ASP A   3  ILE A   4  ASP A 262  ASP A 266                    
SITE     2 AC3  6 HOH A 349  HOH A 519                                          
SITE     1 AC4 11 HIS A  85  ASP A  97  GLU A 131  GLU A 132                    
SITE     2 AC4 11 ASP A 160  GLY A 199  ARG A 202  TYR A 246                    
SITE     3 AC4 11 HIS A 247   ZN A 901   ZN A 902                               
CRYST1   61.990   61.990  146.870  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      0.016132  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.016132  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006809        0.00000