HEADER    ALKALINE PHOSPHATASE                    03-FEB-96   1URB              
TITLE     ALKALINE PHOSPHATASE (N51MG)                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALKALINE PHOSPHATASE;                                      
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 EC: 3.1.3.1;                                                         
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 STRAIN: EK1734;                                                      
SOURCE   5 GENE: PHOA;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: SM547;                                     
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PEK247;                                   
SOURCE  10 EXPRESSION_SYSTEM_GENE: PHOA                                         
KEYWDS    HYDROLASE, PHOSPHORIC MONOESTER, PHOSPHO TRANSFERASE, ALCOHOL         
KEYWDS   2 ACCEPTOR, ALKALINE PHOSPHATASE                                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.T.TIBBITTS,J.E.MURPHY,E.R.KANTROWITZ                                
REVDAT   4   23-OCT-24 1URB    1       REMARK                                   
REVDAT   3   03-NOV-21 1URB    1       REMARK SEQADV LINK                       
REVDAT   2   24-FEB-09 1URB    1       VERSN                                    
REVDAT   1   11-JUL-96 1URB    0                                                
JRNL        AUTH   T.T.TIBBITTS,J.E.MURPHY,E.R.KANTROWITZ                       
JRNL        TITL   KINETIC AND STRUCTURAL CONSEQUENCES OF REPLACING THE         
JRNL        TITL 2 ASPARTATE BRIDGE BY ASPARAGINE IN THE CATALYTIC METAL TRIAD  
JRNL        TITL 3 OF ESCHERICHIA COLI ALKALINE PHOSPHATASE.                    
JRNL        REF    J.MOL.BIOL.                   V. 257   700 1996              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   8648634                                                      
JRNL        DOI    10.1006/JMBI.1996.0195                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   J.E.MURPHY,T.T.TIBBITTS,E.R.KANTROWITZ                       
REMARK   1  TITL   MUTATIONS AT POSITIONS 153 AND 328 IN ESCHERICHIA COLI       
REMARK   1  TITL 2 ALKALINE PHOSPHATASE PROVIDE INSIGHT TOWARDS THE STRUCTURE   
REMARK   1  TITL 3 AND FUNCTION OF MAMMALIAN AND YEAST ALKALINE PHOSPHATASES    
REMARK   1  REF    J.MOL.BIOL.                   V. 253   604 1995              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   T.T.TIBBITTS,X.XU,E.R.KANTROWITZ                             
REMARK   1  TITL   KINETICS AND CRYSTAL STRUCTURE OF A MUTANT E. COLI ALKALINE  
REMARK   1  TITL 2 PHOSPHATASE (ASP-369->ASN): A MECHANISM INVOLVING ONE ZINC   
REMARK   1  TITL 3 PER ACTIVE SITE                                              
REMARK   1  REF    PROTEIN SCI.                  V.   3  2005 1994              
REMARK   1  REFN                   ISSN 0961-8368                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   E.E.KIM,H.W.WYCKOFF                                          
REMARK   1  TITL   REACTION MECHANISM OF ALKALINE PHOSPHATASE BASED ON CRYSTAL  
REMARK   1  TITL 2 STRUCTURES. TWO-METAL ION CATALYSIS                          
REMARK   1  REF    J.MOL.BIOL.                   V. 218   449 1991              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.14 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) : 2.14                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
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             : 59934                          
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) : 0.193                           
REMARK   3   FREE R VALUE                     : 0.241                           
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            : 6562                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 24                                      
REMARK   3   SOLVENT ATOMS            : 439                                     
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) : 0.25                            
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) : 0.015                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.740                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.80                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.550                           
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: NULL                                      
REMARK   4                                                                      
REMARK   4 1URB 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_1000176975.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 28-SEP-94                          
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : 9.2                                
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   : 61905                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 3.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 88.3                               
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   (%): 63.42                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.36                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 45% SATURATING (NH4)2SO4, 0.10 MM        
REMARK 280  CAPS, 20 MM MGCL2, 10 UM ZNCL2, 0.1 MM NAH2PO4 AT PH 9.2.           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+1/2,-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        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  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       97.86000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       84.24000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       38.16500            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       97.86000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       84.24000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       38.16500            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       97.86000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       84.24000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       38.16500            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       97.86000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       84.24000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       38.16500            
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 300 REMARK: THERE IS A DIMER (IDENTICAL CHAINS OF 449 RESIDUES) PER      
REMARK 300 ASYMMETRIC UNIT.  THESE SUBUNITS ARE DESIGNATED                      
REMARK 300 "A" AND "B".                                                         
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: 8700 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 27350 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -137.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 575  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B 587  LIES ON A SPECIAL POSITION.                          
REMARK 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 THE STRUCTURE IS OF A MUTANT ALKALINE PHOSPHATE (D51N)               
REMARK 400 IN WHICH ASP-51 IS REPLACED BY ASN.                                  
REMARK 400 THERE ARE TWO ZINCS COMPLEXED WITH AN INORGANIC PHOSPHATE            
REMARK 400 BOUND IN EACH OF THE TWO ACTIVE SITES.  THE THIRD METAL BIN          
REMARK 400 SITE IS UNOCCUPIED.                                                  
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   505     O    HOH A   505     3656     2.13            
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    ASN A 293   C     ASN A 293   O       0.133                       
REMARK 500    GLU A 406   CA    GLU A 406   C      -0.165                       
REMARK 500    GLU A 406   C     GLU A 407   N      -0.180                       
REMARK 500    GLU A 407   CA    GLU A 407   CB     -0.153                       
REMARK 500    GLN B 291   CB    GLN B 291   CG     -0.243                       
REMARK 500    GLN B 291   CG    GLN B 291   CD      0.217                       
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    GLN A 291   O   -  C   -  N   ANGL. DEV. =  10.8 DEGREES          
REMARK 500    ASN A 293   O   -  C   -  N   ANGL. DEV. =  12.6 DEGREES          
REMARK 500    GLU A 406   CA  -  C   -  O   ANGL. DEV. =  19.8 DEGREES          
REMARK 500    GLU A 406   CA  -  C   -  N   ANGL. DEV. = -13.3 DEGREES          
REMARK 500    GLU A 407   C   -  N   -  CA  ANGL. DEV. = -16.3 DEGREES          
REMARK 500    GLU A 407   CB  -  CA  -  C   ANGL. DEV. =  12.5 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    LEU A   7       98.79    -60.27                                   
REMARK 500    ASN A   9      119.74   -165.22                                   
REMARK 500    ALA A  88     -163.31   -106.74                                   
REMARK 500    ASN A 293      156.03     93.05                                   
REMARK 500    SER A 325        1.05    -68.68                                   
REMARK 500    HIS A 372     -167.48   -114.04                                   
REMARK 500    ASP A 408      -60.28    -28.86                                   
REMARK 500    HIS A 425        7.07     82.94                                   
REMARK 500    LEU B   7      100.47    -59.60                                   
REMARK 500    ASN B   9      118.55   -160.88                                   
REMARK 500    ALA B  88     -166.98   -107.93                                   
REMARK 500    ASN B 293      134.92     59.57                                   
REMARK 500    SER B 325        1.45    -68.29                                   
REMARK 500    HIS B 372     -166.66   -116.61                                   
REMARK 500    GLU B 407     -150.78    -61.83                                   
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                              MG A 451  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A  51   OD1                                                    
REMARK 620 2 SER A 102   OG  109.0                                              
REMARK 620 3 ASP A 369   OD2  83.3  97.9                                        
REMARK 620 4 ASP A 369   OD1  77.3 144.8  47.5                                  
REMARK 620 5 HIS A 370   CE1 129.9  99.7 132.9 101.7                            
REMARK 620 6 HIS A 370   NE2 102.1 121.0 135.2  89.8  28.7                      
REMARK 620 7 HIS A 370   ND1 144.8 104.1 103.8  82.6  29.3  48.9                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 450  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 327   OD1                                                    
REMARK 620 2 ASP A 327   OD2  53.3                                              
REMARK 620 3 HIS A 331   NE2  93.7  92.5                                        
REMARK 620 4 HIS A 412   NE2 115.1 167.8  84.3                                  
REMARK 620 5 PO4 A 453   O1  138.7  85.7  92.8 106.2                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 451  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN B  51   OD1                                                    
REMARK 620 2 SER B 102   OG  135.4                                              
REMARK 620 3 ASP B 369   OD2  75.9 100.4                                        
REMARK 620 4 HIS B 370   CE1 125.5  98.6 105.9                                  
REMARK 620 5 HIS B 370   NE2 102.8 118.9 112.3  24.7                            
REMARK 620 6 HIS B 370   ND1 125.3  97.7  83.5  23.0  41.6                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN B 450  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B 327   OD1                                                    
REMARK 620 2 ASP B 327   OD2  54.3                                              
REMARK 620 3 HIS B 331   NE2 102.7 101.9                                        
REMARK 620 4 HIS B 412   NE2 114.6 165.0  90.1                                  
REMARK 620 5 PO4 B 453   O1  137.6  85.6  98.1 101.7                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: A                                                   
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: CATALYTICALLY ACTIVE SITE ON A SUBUNIT.            
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: B                                                   
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: CATALYTICALLY ACTIVE SITE ON B SUBUNIT.            
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 450                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 451                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 453                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 457                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 450                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 451                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 B 453                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 B 457                 
DBREF  1URB A    4   449  UNP    P00634   PPB_ECOLI       26    471             
DBREF  1URB B    4   449  UNP    P00634   PPB_ECOLI       26    471             
SEQADV 1URB ASN A   51  UNP  P00634    ASP    73 ENGINEERED MUTATION            
SEQADV 1URB ASN B   51  UNP  P00634    ASP    73 ENGINEERED MUTATION            
SEQRES   1 A  446  MET PRO VAL LEU GLU ASN ARG ALA ALA GLN GLY ASP ILE          
SEQRES   2 A  446  THR ALA PRO GLY GLY ALA ARG ARG LEU THR GLY ASP GLN          
SEQRES   3 A  446  THR ALA ALA LEU ARG ASP SER LEU SER ASP LYS PRO ALA          
SEQRES   4 A  446  LYS ASN ILE ILE LEU LEU ILE GLY ASN GLY MET GLY ASP          
SEQRES   5 A  446  SER GLU ILE THR ALA ALA ARG ASN TYR ALA GLU GLY ALA          
SEQRES   6 A  446  GLY GLY PHE PHE LYS GLY ILE ASP ALA LEU PRO LEU THR          
SEQRES   7 A  446  GLY GLN TYR THR HIS TYR ALA LEU ASN LYS LYS THR GLY          
SEQRES   8 A  446  LYS PRO ASP TYR VAL THR ASP SER ALA ALA SER ALA THR          
SEQRES   9 A  446  ALA TRP SER THR GLY VAL LYS THR TYR ASN GLY ALA LEU          
SEQRES  10 A  446  GLY VAL ASP ILE HIS GLU LYS ASP HIS PRO THR ILE LEU          
SEQRES  11 A  446  GLU MET ALA LYS ALA ALA GLY LEU ALA THR GLY ASN VAL          
SEQRES  12 A  446  SER THR ALA GLU LEU GLN ASP ALA THR PRO ALA ALA LEU          
SEQRES  13 A  446  VAL ALA HIS VAL THR SER ARG LYS CYS TYR GLY PRO SER          
SEQRES  14 A  446  ALA THR SER GLU LYS CYS PRO GLY ASN ALA LEU GLU LYS          
SEQRES  15 A  446  GLY GLY LYS GLY SER ILE THR GLU GLN LEU LEU ASN ALA          
SEQRES  16 A  446  ARG ALA ASP VAL THR LEU GLY GLY GLY ALA LYS THR PHE          
SEQRES  17 A  446  ALA GLU THR ALA THR ALA GLY GLU TRP GLN GLY LYS THR          
SEQRES  18 A  446  LEU ARG GLU GLN ALA GLN ALA ARG GLY TYR GLN LEU VAL          
SEQRES  19 A  446  SER ASP ALA ALA SER LEU ASN SER VAL THR GLU ALA ASN          
SEQRES  20 A  446  GLN GLN LYS PRO LEU LEU GLY LEU PHE ALA ASP GLY ASN          
SEQRES  21 A  446  MET PRO VAL ARG TRP LEU GLY PRO LYS ALA THR TYR HIS          
SEQRES  22 A  446  GLY ASN ILE ASP LYS PRO ALA VAL THR CYS THR PRO ASN          
SEQRES  23 A  446  PRO GLN ARG ASN ASP SER VAL PRO THR LEU ALA GLN MET          
SEQRES  24 A  446  THR ASP LYS ALA ILE GLU LEU LEU SER LYS ASN GLU LYS          
SEQRES  25 A  446  GLY PHE PHE LEU GLN VAL GLU GLY ALA SER ILE ASP LYS          
SEQRES  26 A  446  GLN ASP HIS ALA ALA ASN PRO CYS GLY GLN ILE GLY GLU          
SEQRES  27 A  446  THR VAL ASP LEU ASP GLU ALA VAL GLN ARG ALA LEU GLU          
SEQRES  28 A  446  PHE ALA LYS LYS GLU GLY ASN THR LEU VAL ILE VAL THR          
SEQRES  29 A  446  ALA ASP HIS ALA HIS ALA SER GLN ILE VAL ALA PRO ASP          
SEQRES  30 A  446  THR LYS ALA PRO GLY LEU THR GLN ALA LEU ASN THR LYS          
SEQRES  31 A  446  ASP GLY ALA VAL MET VAL MET SER TYR GLY ASN SER GLU          
SEQRES  32 A  446  GLU ASP SER GLN GLU HIS THR GLY SER GLN LEU ARG ILE          
SEQRES  33 A  446  ALA ALA TYR GLY PRO HIS ALA ALA ASN VAL VAL GLY LEU          
SEQRES  34 A  446  THR ASP GLN THR ASP LEU PHE TYR THR MET LYS ALA ALA          
SEQRES  35 A  446  LEU GLY LEU LYS                                              
SEQRES   1 B  446  MET PRO VAL LEU GLU ASN ARG ALA ALA GLN GLY ASP ILE          
SEQRES   2 B  446  THR ALA PRO GLY GLY ALA ARG ARG LEU THR GLY ASP GLN          
SEQRES   3 B  446  THR ALA ALA LEU ARG ASP SER LEU SER ASP LYS PRO ALA          
SEQRES   4 B  446  LYS ASN ILE ILE LEU LEU ILE GLY ASN GLY MET GLY ASP          
SEQRES   5 B  446  SER GLU ILE THR ALA ALA ARG ASN TYR ALA GLU GLY ALA          
SEQRES   6 B  446  GLY GLY PHE PHE LYS GLY ILE ASP ALA LEU PRO LEU THR          
SEQRES   7 B  446  GLY GLN TYR THR HIS TYR ALA LEU ASN LYS LYS THR GLY          
SEQRES   8 B  446  LYS PRO ASP TYR VAL THR ASP SER ALA ALA SER ALA THR          
SEQRES   9 B  446  ALA TRP SER THR GLY VAL LYS THR TYR ASN GLY ALA LEU          
SEQRES  10 B  446  GLY VAL ASP ILE HIS GLU LYS ASP HIS PRO THR ILE LEU          
SEQRES  11 B  446  GLU MET ALA LYS ALA ALA GLY LEU ALA THR GLY ASN VAL          
SEQRES  12 B  446  SER THR ALA GLU LEU GLN ASP ALA THR PRO ALA ALA LEU          
SEQRES  13 B  446  VAL ALA HIS VAL THR SER ARG LYS CYS TYR GLY PRO SER          
SEQRES  14 B  446  ALA THR SER GLU LYS CYS PRO GLY ASN ALA LEU GLU LYS          
SEQRES  15 B  446  GLY GLY LYS GLY SER ILE THR GLU GLN LEU LEU ASN ALA          
SEQRES  16 B  446  ARG ALA ASP VAL THR LEU GLY GLY GLY ALA LYS THR PHE          
SEQRES  17 B  446  ALA GLU THR ALA THR ALA GLY GLU TRP GLN GLY LYS THR          
SEQRES  18 B  446  LEU ARG GLU GLN ALA GLN ALA ARG GLY TYR GLN LEU VAL          
SEQRES  19 B  446  SER ASP ALA ALA SER LEU ASN SER VAL THR GLU ALA ASN          
SEQRES  20 B  446  GLN GLN LYS PRO LEU LEU GLY LEU PHE ALA ASP GLY ASN          
SEQRES  21 B  446  MET PRO VAL ARG TRP LEU GLY PRO LYS ALA THR TYR HIS          
SEQRES  22 B  446  GLY ASN ILE ASP LYS PRO ALA VAL THR CYS THR PRO ASN          
SEQRES  23 B  446  PRO GLN ARG ASN ASP SER VAL PRO THR LEU ALA GLN MET          
SEQRES  24 B  446  THR ASP LYS ALA ILE GLU LEU LEU SER LYS ASN GLU LYS          
SEQRES  25 B  446  GLY PHE PHE LEU GLN VAL GLU GLY ALA SER ILE ASP LYS          
SEQRES  26 B  446  GLN ASP HIS ALA ALA ASN PRO CYS GLY GLN ILE GLY GLU          
SEQRES  27 B  446  THR VAL ASP LEU ASP GLU ALA VAL GLN ARG ALA LEU GLU          
SEQRES  28 B  446  PHE ALA LYS LYS GLU GLY ASN THR LEU VAL ILE VAL THR          
SEQRES  29 B  446  ALA ASP HIS ALA HIS ALA SER GLN ILE VAL ALA PRO ASP          
SEQRES  30 B  446  THR LYS ALA PRO GLY LEU THR GLN ALA LEU ASN THR LYS          
SEQRES  31 B  446  ASP GLY ALA VAL MET VAL MET SER TYR GLY ASN SER GLU          
SEQRES  32 B  446  GLU ASP SER GLN GLU HIS THR GLY SER GLN LEU ARG ILE          
SEQRES  33 B  446  ALA ALA TYR GLY PRO HIS ALA ALA ASN VAL VAL GLY LEU          
SEQRES  34 B  446  THR ASP GLN THR ASP LEU PHE TYR THR MET LYS ALA ALA          
SEQRES  35 B  446  LEU GLY LEU LYS                                              
HET     ZN  A 450       1                                                       
HET     MG  A 451       1                                                       
HET    PO4  A 453       5                                                       
HET    PO4  A 457       5                                                       
HET     ZN  B 450       1                                                       
HET     MG  B 451       1                                                       
HET    PO4  B 453       5                                                       
HET    PO4  B 457       5                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     PO4 PHOSPHATE ION                                                    
FORMUL   3   ZN    2(ZN 2+)                                                     
FORMUL   4   MG    2(MG 2+)                                                     
FORMUL   5  PO4    4(O4 P 3-)                                                   
FORMUL  11  HOH   *439(H2 O)                                                    
HELIX    1   1 THR A   30  SER A   36  1                                   7    
HELIX    2   2 ASP A   55  GLU A   66  1                                  12    
HELIX    3   3 SER A  102  THR A  111  1                                  10    
HELIX    4   4 ILE A  132  ALA A  138  1                                   7    
HELIX    5   5 ALA A  154  LEU A  159  1                                   6    
HELIX    6   6 PRO A  171  LYS A  177  1                                   7    
HELIX    7   7 LEU A  183  LYS A  185  5                                   3    
HELIX    8   8 ILE A  191  ALA A  198  1                                   8    
HELIX    9   9 LYS A  209  ALA A  212  5                                   4    
HELIX   10  10 LEU A  225  ALA A  231  1                                   7    
HELIX   11  11 ALA A  240  SER A  245  1                                   6    
HELIX   12  12 GLY A  277  ASP A  280  1                                   4    
HELIX   13  13 LEU A  299  LYS A  312  1                                  14    
HELIX   14  14 ALA A  324  HIS A  331  5                                   8    
HELIX   15  15 PRO A  335  GLU A  359  1                                  25    
HELIX   16  16 ALA A  426  VAL A  429  5                                   4    
HELIX   17  17 GLN A  435  LEU A  446  1                                  12    
HELIX   18  18 THR B   30  SER B   36  1                                   7    
HELIX   19  19 ASP B   55  GLU B   66  1                                  12    
HELIX   20  20 SER B  102  THR B  111  1                                  10    
HELIX   21  21 ILE B  132  ALA B  138  1                                   7    
HELIX   22  22 ALA B  154  LEU B  159  1                                   6    
HELIX   23  23 PRO B  171  LYS B  177  1                                   7    
HELIX   24  24 LEU B  183  LYS B  185  5                                   3    
HELIX   25  25 ILE B  191  ALA B  198  1                                   8    
HELIX   26  26 LYS B  209  ALA B  212  5                                   4    
HELIX   27  27 LEU B  225  ALA B  231  1                                   7    
HELIX   28  28 ALA B  240  SER B  245  1                                   6    
HELIX   29  29 GLY B  277  ASP B  280  1                                   4    
HELIX   30  30 LEU B  299  LYS B  312  1                                  14    
HELIX   31  31 ALA B  324  HIS B  331  5                                   8    
HELIX   32  32 PRO B  335  GLU B  359  1                                  25    
HELIX   33  33 ALA B  426  VAL B  429  5                                   4    
HELIX   34  34 GLN B  435  LEU B  446  1                                  12    
SHEET    1   A10 GLY A 431  ASP A 434  0                                        
SHEET    2   A10 LEU A  80  THR A  85  1  N  GLN A  83   O  GLY A 431           
SHEET    3   A10 LEU A 417  TYR A 422 -1  N  ALA A 421   O  LEU A  80           
SHEET    4   A10 THR A 362  THR A 367 -1  N  VAL A 366   O  ALA A 420           
SHEET    5   A10 ASN A  44  GLY A  50  1  N  ASN A  44   O  LEU A 363           
SHEET    6   A10 PHE A 317  GLY A 323  1  N  PHE A 317   O  ILE A  45           
SHEET    7   A10 ALA A 142  SER A 147  1  N  ALA A 142   O  PHE A 318           
SHEET    8   A10 VAL A 202  GLY A 205  1  N  VAL A 202   O  ASN A 145           
SHEET    9   A10 LEU A 255  LEU A 258  1  N  LEU A 255   O  THR A 203           
SHEET   10   A10 GLN A 235  VAL A 237  1  N  GLN A 235   O  LEU A 256           
SHEET    1   B 3 GLN A 375  VAL A 377  0                                        
SHEET    2   B 3 VAL A 397  TYR A 402 -1  N  SER A 401   O  GLN A 375           
SHEET    3   B 3 LEU A 386  ASN A 391 -1  N  LEU A 390   O  MET A 398           
SHEET    1   C10 GLY B 431  ASP B 434  0                                        
SHEET    2   C10 LEU B  80  THR B  85  1  N  GLN B  83   O  GLY B 431           
SHEET    3   C10 LEU B 417  TYR B 422 -1  N  ALA B 421   O  LEU B  80           
SHEET    4   C10 THR B 362  ALA B 368 -1  N  VAL B 366   O  ALA B 420           
SHEET    5   C10 ASN B  44  GLY B  50  1  N  ASN B  44   O  LEU B 363           
SHEET    6   C10 PHE B 317  GLY B 323  1  N  PHE B 317   O  ILE B  45           
SHEET    7   C10 ALA B 142  SER B 147  1  N  ALA B 142   O  PHE B 318           
SHEET    8   C10 VAL B 202  GLY B 205  1  N  VAL B 202   O  ASN B 145           
SHEET    9   C10 LEU B 255  LEU B 258  1  N  LEU B 255   O  THR B 203           
SHEET   10   C10 GLN B 235  VAL B 237  1  N  GLN B 235   O  LEU B 256           
SHEET    1   D 3 GLN B 375  VAL B 377  0                                        
SHEET    2   D 3 VAL B 397  TYR B 402 -1  N  SER B 401   O  GLN B 375           
SHEET    3   D 3 LEU B 386  ASN B 391 -1  N  LEU B 390   O  MET B 398           
SSBOND   1 CYS A  168    CYS A  178                          1555   1555  2.02  
SSBOND   2 CYS A  286    CYS A  336                          1555   1555  2.04  
SSBOND   3 CYS B  168    CYS B  178                          1555   1555  2.04  
SSBOND   4 CYS B  286    CYS B  336                          1555   1555  2.05  
LINK         OD1 ASN A  51                MG    MG A 451     1555   1555  2.35  
LINK         OG  SER A 102                MG    MG A 451     1555   1555  2.39  
LINK         OD1 ASP A 327                ZN    ZN A 450     1555   1555  2.13  
LINK         OD2 ASP A 327                ZN    ZN A 450     1555   1555  2.64  
LINK         NE2 HIS A 331                ZN    ZN A 450     1555   1555  2.28  
LINK         OD2 ASP A 369                MG    MG A 451     1555   1555  2.25  
LINK         OD1 ASP A 369                MG    MG A 451     1555   1555  2.97  
LINK         CE1 HIS A 370                MG    MG A 451     1555   1555  1.94  
LINK         NE2 HIS A 370                MG    MG A 451     1555   1555  2.62  
LINK         ND1 HIS A 370                MG    MG A 451     1555   1555  2.63  
LINK         NE2 HIS A 412                ZN    ZN A 450     1555   1555  1.83  
LINK        ZN    ZN A 450                 O1  PO4 A 453     1555   1555  1.87  
LINK         OD1 ASN B  51                MG    MG B 451     1555   1555  2.20  
LINK         OG  SER B 102                MG    MG B 451     1555   1555  2.20  
LINK         OD1 ASP B 327                ZN    ZN B 450     1555   1555  1.97  
LINK         OD2 ASP B 327                ZN    ZN B 450     1555   1555  2.66  
LINK         NE2 HIS B 331                ZN    ZN B 450     1555   1555  2.05  
LINK         OD2 ASP B 369                MG    MG B 451     1555   1555  2.39  
LINK         CE1 HIS B 370                MG    MG B 451     1555   1555  2.32  
LINK         NE2 HIS B 370                MG    MG B 451     1555   1555  2.99  
LINK         ND1 HIS B 370                MG    MG B 451     1555   1555  3.12  
LINK         NE2 HIS B 412                ZN    ZN B 450     1555   1555  1.94  
LINK        ZN    ZN B 450                 O1  PO4 B 453     1555   1555  1.87  
SITE     1   A 15 ASP A 327  HIS A 331  HIS A 412   ZN A 450                    
SITE     2   A 15  MG A 451  PO4 A 453  ASN A  51  ASP A 369                    
SITE     3   A 15 HIS A 370  THR A 155  GLU A 322  ASP A 153                    
SITE     4   A 15 LYS A 328  ARG A 166  SER A 102                               
SITE     1   B 15 ASP B 327  HIS B 331  HIS B 412   ZN B 450                    
SITE     2   B 15  MG B 451  PO4 B 453  ASN B  51  ASP B 369                    
SITE     3   B 15 HIS B 370  THR B 155  GLU B 322  ASP B 153                    
SITE     4   B 15 LYS B 328  ARG B 166  SER B 102                               
SITE     1 AC1  6 ASP A 327  HIS A 331  HIS A 370  HIS A 372                    
SITE     2 AC1  6 HIS A 412  PO4 A 453                                          
SITE     1 AC2  4 ASN A  51  SER A 102  ASP A 369  HIS A 370                    
SITE     1 AC3  8 ASP A 101  SER A 102  ARG A 166  ASP A 327                    
SITE     2 AC3  8 HIS A 331  HIS A 412   ZN A 450  HOH A 628                    
SITE     1 AC4  3 ARG A 267  TRP A 268  ARG A 292                               
SITE     1 AC5  6 ASP B 327  HIS B 331  HIS B 370  HIS B 372                    
SITE     2 AC5  6 HIS B 412  PO4 B 453                                          
SITE     1 AC6  4 ASN B  51  SER B 102  ASP B 369  HIS B 370                    
SITE     1 AC7  8 ASP B 101  SER B 102  ARG B 166  ASP B 327                    
SITE     2 AC7  8 HIS B 331  HIS B 412   ZN B 450  HOH B 477                    
SITE     1 AC8  3 ARG B 267  TRP B 268  ARG B 292                               
CRYST1  195.720  168.480   76.330  90.00  90.00  90.00 I 2 2 2      16          
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      0.005109  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.005935  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013101        0.00000