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Database: PDB
Entry: 4WAM
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Original site: 4WAM 
HEADER    LYASE                                   29-AUG-14   4WAM              
TITLE     H. INFLUENZAE BETA-CARBONIC ANHYDRASE VARIANT W39V/G41A/P48S/A49P     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BETA-CARBONIC ANHYDRASE;                                   
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: CARBONATE DEHYDRATASE 2;                                    
COMPND   5 EC: 4.2.1.1;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HAEMOPHILUS INFLUENZAE;                         
SOURCE   3 ORGANISM_TAXID: 71421;                                               
SOURCE   4 STRAIN: ATCC 51907 / DSM 11121 / KW20 / RD;                          
SOURCE   5 GENE: CAN, HI_1301;                                                  
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: JM109;                                     
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PTRC99A                                   
KEYWDS    BETA-CARBONIC ANHYDRASE ALLOSTERIC SITE, LYASE                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.S.ROWLETT,K.M.HOFFMAN                                               
REVDAT   6   27-DEC-23 4WAM    1       REMARK                                   
REVDAT   5   27-NOV-19 4WAM    1       REMARK                                   
REVDAT   4   20-SEP-17 4WAM    1       SOURCE KEYWDS JRNL   REMARK              
REVDAT   3   28-JAN-15 4WAM    1       JRNL                                     
REVDAT   2   14-JAN-15 4WAM    1       JRNL                                     
REVDAT   1   31-DEC-14 4WAM    0                                                
JRNL        AUTH   K.M.HOFFMANN,H.R.MILLION-PEREZ,R.MERKHOFER,H.NICHOLSON,      
JRNL        AUTH 2 R.S.ROWLETT                                                  
JRNL        TITL   ALLOSTERIC REVERSION OF HAEMOPHILUS INFLUENZAE BETA-CARBONIC 
JRNL        TITL 2 ANHYDRASE VIA A PROLINE SHIFT.                               
JRNL        REF    BIOCHEMISTRY                  V.  54   598 2015              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   25506786                                                     
JRNL        DOI    10.1021/BI501116E                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.8.0073                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 96.56                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 95.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 21239                          
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 + TEST SET) : 0.235                           
REMARK   3   R VALUE            (WORKING SET) : 0.232                           
REMARK   3   FREE R VALUE                     : 0.287                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.200                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1163                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.26                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1173                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 72.74                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.6280                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 57                           
REMARK   3   BIN FREE R VALUE                    : 0.6630                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2835                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 22                                      
REMARK   3   SOLVENT ATOMS            : 144                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 26.13                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.24000                                              
REMARK   3    B22 (A**2) : -0.36000                                             
REMARK   3    B33 (A**2) : 0.12000                                              
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.302         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.246         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.166         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 12.834        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.878                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.846                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2924 ; 0.016 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  2834 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3955 ; 1.793 ; 1.941       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  6477 ; 0.918 ; 3.001       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   354 ; 7.526 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   132 ;34.839 ;23.712       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   506 ;19.174 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    18 ;18.506 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   453 ; 0.106 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3236 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   690 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1428 ; 1.631 ; 1.735       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1427 ; 1.631 ; 1.732       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1775 ; 2.744 ; 2.574       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  1776 ; 2.743 ; 2.577       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1496 ; 1.989 ; 2.038       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  1478 ; 1.886 ; 2.017       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  2155 ; 3.207 ; 2.933       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  3417 ; 6.081 ;14.371       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  3369 ; 5.869 ;14.219       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A    34        A   221                          
REMARK   3    ORIGIN FOR THE GROUP (A):   -8.821    3.319   17.499              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0294 T22:   0.1223                                     
REMARK   3      T33:   0.0174 T12:   0.0057                                     
REMARK   3      T13:  -0.0095 T23:   0.0223                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.3453 L22:   0.6665                                     
REMARK   3      L33:   0.7042 L12:  -0.2758                                     
REMARK   3      L13:   0.2208 L23:   0.1805                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0107 S12:   0.2223 S13:   0.1255                       
REMARK   3      S21:  -0.0862 S22:  -0.0041 S23:   0.0072                       
REMARK   3      S31:  -0.0096 S32:  -0.0065 S33:  -0.0066                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B    34        B   217                          
REMARK   3    ORIGIN FOR THE GROUP (A):   -2.808  -18.636   32.813              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0172 T22:   0.0338                                     
REMARK   3      T33:   0.0415 T12:   0.0147                                     
REMARK   3      T13:   0.0030 T23:  -0.0039                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.4342 L22:   0.7202                                     
REMARK   3      L33:   0.6515 L12:  -0.3170                                     
REMARK   3      L13:   0.1856 L23:  -0.0758                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0018 S12:  -0.0004 S13:  -0.2002                       
REMARK   3      S21:  -0.0421 S22:   0.0056 S23:   0.0262                       
REMARK   3      S31:   0.0831 S32:   0.0290 S33:  -0.0038                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 4WAM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-SEP-14.                  
REMARK 100 THE DEPOSITION ID IS D_1000203484.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 28-MAY-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 110                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : SEALED TUBE                        
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : OXFORD DIFFRACTION ENHANCE ULTRA   
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.54                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : OXFORD RUBY CCD                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 22403                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 96.560                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.3                               
REMARK 200  DATA REDUNDANCY                : 3.300                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.10100                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 7.2000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.26                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 83.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.52100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.700                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: ORTHORHOMBIC PLATES                                          
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.02                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.16                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.30 M SODIUM POTASSIUM PHOSPHATE, 12    
REMARK 280  MG/ML PROTEIN, PH 7.5, VAPOR DIFFUSION, HANGING DROP,               
REMARK 280  TEMPERATURE 295K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X,-Y+1/2,Z                                             
REMARK 290       7555   -X+1/2,Y,-Z                                             
REMARK 290       8555   X,-Y,-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       24.08100            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       71.93400            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       65.12950            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       71.93400            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       24.08100            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       65.12950            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       24.08100            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       65.12950            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       71.93400            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       65.12950            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       24.08100            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       71.93400            
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 11970 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 27290 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -116.0 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 350   BIOMT1   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       71.93400            
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 B 418  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     ASP A     2                                                      
REMARK 465     LYS A     3                                                      
REMARK 465     ILE A     4                                                      
REMARK 465     LYS A     5                                                      
REMARK 465     GLN A     6                                                      
REMARK 465     LEU A     7                                                      
REMARK 465     PHE A     8                                                      
REMARK 465     ALA A     9                                                      
REMARK 465     ASN A    10                                                      
REMARK 465     ASN A    11                                                      
REMARK 465     TYR A    12                                                      
REMARK 465     SER A    13                                                      
REMARK 465     TRP A    14                                                      
REMARK 465     ALA A    15                                                      
REMARK 465     GLN A    16                                                      
REMARK 465     ARG A    17                                                      
REMARK 465     MET A    18                                                      
REMARK 465     LYS A    19                                                      
REMARK 465     GLU A    20                                                      
REMARK 465     GLU A    21                                                      
REMARK 465     ASN A    22                                                      
REMARK 465     SER A    23                                                      
REMARK 465     THR A    24                                                      
REMARK 465     TYR A    25                                                      
REMARK 465     PHE A    26                                                      
REMARK 465     LYS A    27                                                      
REMARK 465     GLU A    28                                                      
REMARK 465     LEU A    29                                                      
REMARK 465     ALA A    30                                                      
REMARK 465     ASP A    31                                                      
REMARK 465     HIS A    32                                                      
REMARK 465     GLN A    33                                                      
REMARK 465     THR A    53                                                      
REMARK 465     ASN A    54                                                      
REMARK 465     LEU A    55                                                      
REMARK 465     GLU A    56                                                      
REMARK 465     ASP A   182                                                      
REMARK 465     VAL A   183                                                      
REMARK 465     ASN A   184                                                      
REMARK 465     ASP A   185                                                      
REMARK 465     ASP A   190                                                      
REMARK 465     GLN A   191                                                      
REMARK 465     LYS A   222                                                      
REMARK 465     LYS A   223                                                      
REMARK 465     ASP A   224                                                      
REMARK 465     HIS A   225                                                      
REMARK 465     LEU A   226                                                      
REMARK 465     GLU A   227                                                      
REMARK 465     ASN A   228                                                      
REMARK 465     THR A   229                                                      
REMARK 465     MET B     1                                                      
REMARK 465     ASP B     2                                                      
REMARK 465     LYS B     3                                                      
REMARK 465     ILE B     4                                                      
REMARK 465     LYS B     5                                                      
REMARK 465     GLN B     6                                                      
REMARK 465     LEU B     7                                                      
REMARK 465     PHE B     8                                                      
REMARK 465     ALA B     9                                                      
REMARK 465     ASN B    10                                                      
REMARK 465     ASN B    11                                                      
REMARK 465     TYR B    12                                                      
REMARK 465     SER B    13                                                      
REMARK 465     TRP B    14                                                      
REMARK 465     ALA B    15                                                      
REMARK 465     GLN B    16                                                      
REMARK 465     ARG B    17                                                      
REMARK 465     MET B    18                                                      
REMARK 465     LYS B    19                                                      
REMARK 465     GLU B    20                                                      
REMARK 465     GLU B    21                                                      
REMARK 465     ASN B    22                                                      
REMARK 465     SER B    23                                                      
REMARK 465     THR B    24                                                      
REMARK 465     TYR B    25                                                      
REMARK 465     PHE B    26                                                      
REMARK 465     LYS B    27                                                      
REMARK 465     GLU B    28                                                      
REMARK 465     LEU B    29                                                      
REMARK 465     ALA B    30                                                      
REMARK 465     ASP B    31                                                      
REMARK 465     HIS B    32                                                      
REMARK 465     GLN B    33                                                      
REMARK 465     ASN B    54                                                      
REMARK 465     LEU B    55                                                      
REMARK 465     GLU B    56                                                      
REMARK 465     PRO B    57                                                      
REMARK 465     GLU B   218                                                      
REMARK 465     ASN B   219                                                      
REMARK 465     ILE B   220                                                      
REMARK 465     LEU B   221                                                      
REMARK 465     LYS B   222                                                      
REMARK 465     LYS B   223                                                      
REMARK 465     ASP B   224                                                      
REMARK 465     HIS B   225                                                      
REMARK 465     LEU B   226                                                      
REMARK 465     GLU B   227                                                      
REMARK 465     ASN B   228                                                      
REMARK 465     THR B   229                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NH1  ARG A    64     O1   PO4 A   303              2.07            
REMARK 500   OD2  ASP B   110     O3   PO4 A   304              2.07            
REMARK 500   O    HOH A   459     O    HOH B   448              2.12            
REMARK 500   OD2  ASP A   110     O1   PO4 A   305              2.13            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   464     O    HOH A   464     7455     1.80            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP A 125   CB  -  CG  -  OD1 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    ASP B 110   C   -  N   -  CA  ANGL. DEV. = -15.3 DEGREES          
REMARK 500    ASP B 182   CB  -  CG  -  OD1 ANGL. DEV. =   5.6 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    SER A  48      135.89    -39.53                                   
REMARK 500    GLU A  50       23.22    -67.01                                   
REMARK 500    LYS A  51     -159.59    -73.20                                   
REMARK 500    LEU A 188       48.66   -100.00                                   
REMARK 500    ALA B  67       30.07     71.84                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 GLU A   50     LYS A   51                  145.01                    
REMARK 500 THR B   34     PRO B   35                 -143.27                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 462        DISTANCE =  6.67 ANGSTROMS                       
REMARK 525    HOH A 464        DISTANCE =  7.31 ANGSTROMS                       
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 301  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  42   SG                                                     
REMARK 620 2 ASP A  44   OD1  98.1                                              
REMARK 620 3 HIS A  98   NE2 113.1  88.4                                        
REMARK 620 4 CYS A 101   SG  113.1 132.9 109.0                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN B 301  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B  42   SG                                                     
REMARK 620 2 ASP B  44   OD1 101.0                                              
REMARK 620 3 HIS B  98   NE2 119.0  92.0                                        
REMARK 620 4 CYS B 101   SG  116.0 125.1 102.6                                  
REMARK 620 N                    1     2     3                                   
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 301                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue PO4 A 302                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue PO4 A 303                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue PO4 A 304                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue PO4 A 305                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ZN B 301                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2A8D   RELATED DB: PDB                                   
REMARK 900 2A8D IS THE WILD-TYPE ENZYME COMPLEXED WITH BICARBONATE              
REMARK 900 RELATED ID: 4WAJ   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4WAM   RELATED DB: PDB                                   
DBREF  4WAM A    1   229  UNP    P45148   CAN_HAEIN        1    229             
DBREF  4WAM B    1   229  UNP    P45148   CAN_HAEIN        1    229             
SEQADV 4WAM VAL A   39  UNP  P45148    TRP    39 ENGINEERED MUTATION            
SEQADV 4WAM ALA A   41  UNP  P45148    GLY    41 ENGINEERED MUTATION            
SEQADV 4WAM SER A   48  UNP  P45148    PRO    48 ENGINEERED MUTATION            
SEQADV 4WAM PRO A   49  UNP  P45148    ALA    49 ENGINEERED MUTATION            
SEQADV 4WAM VAL B   39  UNP  P45148    TRP    39 ENGINEERED MUTATION            
SEQADV 4WAM ALA B   41  UNP  P45148    GLY    41 ENGINEERED MUTATION            
SEQADV 4WAM SER B   48  UNP  P45148    PRO    48 ENGINEERED MUTATION            
SEQADV 4WAM PRO B   49  UNP  P45148    ALA    49 ENGINEERED MUTATION            
SEQRES   1 A  229  MET ASP LYS ILE LYS GLN LEU PHE ALA ASN ASN TYR SER          
SEQRES   2 A  229  TRP ALA GLN ARG MET LYS GLU GLU ASN SER THR TYR PHE          
SEQRES   3 A  229  LYS GLU LEU ALA ASP HIS GLN THR PRO HIS TYR LEU VAL          
SEQRES   4 A  229  ILE ALA CYS SER ASP SER ARG VAL SER PRO GLU LYS LEU          
SEQRES   5 A  229  THR ASN LEU GLU PRO GLY GLU LEU PHE VAL HIS ARG ASN          
SEQRES   6 A  229  VAL ALA ASN GLN VAL ILE HIS THR ASP PHE ASN CYS LEU          
SEQRES   7 A  229  SER VAL VAL GLN TYR ALA VAL ASP VAL LEU LYS ILE GLU          
SEQRES   8 A  229  HIS ILE ILE ILE CYS GLY HIS THR ASN CYS GLY GLY ILE          
SEQRES   9 A  229  HIS ALA ALA MET ALA ASP LYS ASP LEU GLY LEU ILE ASN          
SEQRES  10 A  229  ASN TRP LEU LEU HIS ILE ARG ASP ILE TRP PHE LYS HIS          
SEQRES  11 A  229  GLY HIS LEU LEU GLY LYS LEU SER PRO GLU LYS ARG ALA          
SEQRES  12 A  229  ASP MET LEU THR LYS ILE ASN VAL ALA GLU GLN VAL TYR          
SEQRES  13 A  229  ASN LEU GLY ARG THR SER ILE VAL LYS SER ALA TRP GLU          
SEQRES  14 A  229  ARG GLY GLN LYS LEU SER LEU HIS GLY TRP VAL TYR ASP          
SEQRES  15 A  229  VAL ASN ASP GLY PHE LEU VAL ASP GLN GLY VAL MET ALA          
SEQRES  16 A  229  THR SER ARG GLU THR LEU GLU ILE SER TYR ARG ASN ALA          
SEQRES  17 A  229  ILE ALA ARG LEU SER ILE LEU ASP GLU GLU ASN ILE LEU          
SEQRES  18 A  229  LYS LYS ASP HIS LEU GLU ASN THR                              
SEQRES   1 B  229  MET ASP LYS ILE LYS GLN LEU PHE ALA ASN ASN TYR SER          
SEQRES   2 B  229  TRP ALA GLN ARG MET LYS GLU GLU ASN SER THR TYR PHE          
SEQRES   3 B  229  LYS GLU LEU ALA ASP HIS GLN THR PRO HIS TYR LEU VAL          
SEQRES   4 B  229  ILE ALA CYS SER ASP SER ARG VAL SER PRO GLU LYS LEU          
SEQRES   5 B  229  THR ASN LEU GLU PRO GLY GLU LEU PHE VAL HIS ARG ASN          
SEQRES   6 B  229  VAL ALA ASN GLN VAL ILE HIS THR ASP PHE ASN CYS LEU          
SEQRES   7 B  229  SER VAL VAL GLN TYR ALA VAL ASP VAL LEU LYS ILE GLU          
SEQRES   8 B  229  HIS ILE ILE ILE CYS GLY HIS THR ASN CYS GLY GLY ILE          
SEQRES   9 B  229  HIS ALA ALA MET ALA ASP LYS ASP LEU GLY LEU ILE ASN          
SEQRES  10 B  229  ASN TRP LEU LEU HIS ILE ARG ASP ILE TRP PHE LYS HIS          
SEQRES  11 B  229  GLY HIS LEU LEU GLY LYS LEU SER PRO GLU LYS ARG ALA          
SEQRES  12 B  229  ASP MET LEU THR LYS ILE ASN VAL ALA GLU GLN VAL TYR          
SEQRES  13 B  229  ASN LEU GLY ARG THR SER ILE VAL LYS SER ALA TRP GLU          
SEQRES  14 B  229  ARG GLY GLN LYS LEU SER LEU HIS GLY TRP VAL TYR ASP          
SEQRES  15 B  229  VAL ASN ASP GLY PHE LEU VAL ASP GLN GLY VAL MET ALA          
SEQRES  16 B  229  THR SER ARG GLU THR LEU GLU ILE SER TYR ARG ASN ALA          
SEQRES  17 B  229  ILE ALA ARG LEU SER ILE LEU ASP GLU GLU ASN ILE LEU          
SEQRES  18 B  229  LYS LYS ASP HIS LEU GLU ASN THR                              
HET     ZN  A 301       1                                                       
HET    PO4  A 302       5                                                       
HET    PO4  A 303       5                                                       
HET    PO4  A 304       5                                                       
HET    PO4  A 305       5                                                       
HET     ZN  B 301       1                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM     PO4 PHOSPHATE ION                                                    
FORMUL   3   ZN    2(ZN 2+)                                                     
FORMUL   4  PO4    4(O4 P 3-)                                                   
FORMUL   9  HOH   *144(H2 O)                                                    
HELIX    1 AA1 ASP A   74  VAL A   87  1                                  14    
HELIX    2 AA2 CYS A  101  ASP A  110  1                                  10    
HELIX    3 AA3 LEU A  115  HIS A  130  1                                  16    
HELIX    4 AA4 HIS A  130  LYS A  136  1                                   7    
HELIX    5 AA5 LEU A  137  GLU A  140  5                                   4    
HELIX    6 AA6 LYS A  141  ARG A  160  1                                  20    
HELIX    7 AA7 THR A  161  ARG A  170  1                                  10    
HELIX    8 AA8 SER A  197  ILE A  214  1                                  18    
HELIX    9 AA9 SER B   48  THR B   53  1                                   6    
HELIX   10 AB1 ASP B   74  VAL B   87  1                                  14    
HELIX   11 AB2 CYS B  101  ALA B  109  1                                   9    
HELIX   12 AB3 LEU B  115  HIS B  130  1                                  16    
HELIX   13 AB4 HIS B  130  LEU B  137  1                                   8    
HELIX   14 AB5 LYS B  141  THR B  161  1                                  21    
HELIX   15 AB6 THR B  161  ARG B  170  1                                  10    
HELIX   16 AB7 SER B  197  SER B  213  1                                  17    
SHEET    1 AA1 5 LEU A  60  ASN A  65  0                                        
SHEET    2 AA1 5 TYR A  37  CYS A  42  1  N  VAL A  39   O  HIS A  63           
SHEET    3 AA1 5 HIS A  92  HIS A  98  1  O  ILE A  94   N  ILE A  40           
SHEET    4 AA1 5 SER A 175  TYR A 181  1  O  TRP A 179   N  GLY A  97           
SHEET    5 AA1 5 VAL A 193  ALA A 195 -1  O  ALA A 195   N  LEU A 176           
SHEET    1 AA2 5 LEU B  60  ASN B  65  0                                        
SHEET    2 AA2 5 TYR B  37  CYS B  42  1  N  TYR B  37   O  PHE B  61           
SHEET    3 AA2 5 HIS B  92  HIS B  98  1  O  ILE B  94   N  ILE B  40           
SHEET    4 AA2 5 SER B 175  ASP B 182  1  O  HIS B 177   N  ILE B  95           
SHEET    5 AA2 5 PHE B 187  ALA B 195 -1  O  ALA B 195   N  LEU B 176           
LINK         SG  CYS A  42                ZN    ZN A 301     1555   1555  2.31  
LINK         OD1 ASP A  44                ZN    ZN A 301     1555   1555  1.96  
LINK         NE2 HIS A  98                ZN    ZN A 301     1555   1555  2.04  
LINK         SG  CYS A 101                ZN    ZN A 301     1555   1555  2.23  
LINK         SG  CYS B  42                ZN    ZN B 301     1555   1555  2.33  
LINK         OD1 ASP B  44                ZN    ZN B 301     1555   1555  1.98  
LINK         NE2 HIS B  98                ZN    ZN B 301     1555   1555  2.06  
LINK         SG  CYS B 101                ZN    ZN B 301     1555   1555  2.25  
SITE     1 AC1  4 CYS A  42  ASP A  44  HIS A  98  CYS A 101                    
SITE     1 AC2  9 THR A  73  ASP A  74  PHE A  75  ASN A  76                    
SITE     2 AC2  9 HOH A 403  THR B  73  ASP B  74  PHE B  75                    
SITE     3 AC2  9 ASN B  76                                                     
SITE     1 AC3  8 PRO A  49  VAL A  62  ARG A  64  SER B  48                    
SITE     2 AC3  8 PRO B  49  GLU B  50  VAL B  62  ARG B  64                    
SITE     1 AC4  9 ARG A 160  LYS A 165  ARG A 198  HOH A 433                    
SITE     2 AC4  9 HOH A 437  HOH A 446  ASP B 110  LEU B 121                    
SITE     3 AC4  9 ARG B 124                                                     
SITE     1 AC5  6 ASP A 110  LEU A 121  ARG A 124  ARG B 160                    
SITE     2 AC5  6 LYS B 165  ARG B 198                                          
SITE     1 AC6  4 CYS B  42  ASP B  44  HIS B  98  CYS B 101                    
CRYST1   48.162  130.259  143.868  90.00  90.00  90.00 I 21 21 21   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      0.020763  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007677  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006951        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
DBGET integrated database retrieval system