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Database: PDB
Entry: 3BOF
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HEADER    TRANSFERASE                             17-DEC-07   3BOF              
TITLE     COBALAMIN-DEPENDENT METHIONINE SYNTHASE (1-566) FROM THERMOTOGA       
TITLE    2 MARITIMA COMPLEXED WITH ZN2+ AND HOMOCYSTEINE                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5-METHYLTETRAHYDROFOLATE S-HOMOCYSTEINE METHYLTRANSFERASE; 
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 EC: 2.1.1.13;                                                        
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: THERMOTOGA MARITIMA;                            
SOURCE   3 ORGANISM_TAXID: 2336;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21 DE3;                                  
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET29A                                    
KEYWDS    METH, TRANSFERASE, TIM BARREL, HOMOCYSTEINE, ZINC, ZINC INVERSION,    
KEYWDS   2 METHYLTRANSFERASE                                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.KOUTMOS,J.L.SMITH,M.L.LUDWIG                                        
REVDAT   5   03-APR-24 3BOF    1       HETSYN                                   
REVDAT   4   21-FEB-24 3BOF    1       REMARK LINK                              
REVDAT   3   24-FEB-09 3BOF    1       VERSN                                    
REVDAT   2   18-MAR-08 3BOF    1       JRNL                                     
REVDAT   1   11-MAR-08 3BOF    0                                                
JRNL        AUTH   M.KOUTMOS,R.PEJCHAL,T.M.BOMER,R.G.MATTHEWS,J.L.SMITH,        
JRNL        AUTH 2 M.L.LUDWIG                                                   
JRNL        TITL   METAL ACTIVE SITE ELASTICITY LINKED TO ACTIVATION OF         
JRNL        TITL 2 HOMOCYSTEINE IN METHIONINE SYNTHASES.                        
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 105  3286 2008              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   18296644                                                     
JRNL        DOI    10.1073/PNAS.0709960105                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
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) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 46.68                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 136540                         
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) : 0.196                           
REMARK   3   R VALUE            (WORKING SET) : 0.195                           
REMARK   3   FREE R VALUE                     : 0.222                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 6933                            
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) : 1.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.74                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 9517                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.93                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2360                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 543                          
REMARK   3   BIN FREE R VALUE                    : 0.2940                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 8763                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 21                                      
REMARK   3   SOLVENT ATOMS            : 411                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 28.91                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 26.69                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.01000                                              
REMARK   3    B22 (A**2) : 0.04000                                              
REMARK   3    B33 (A**2) : -0.05000                                             
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): 0.106         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.102         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.070         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.082         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.956                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.945                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  8942 ; 0.013 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES): 12084 ; 1.419 ; 1.990       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):  1113 ; 6.679 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   392 ;37.936 ;24.184       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1613 ;14.951 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    58 ;18.881 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1382 ; 0.100 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  6662 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  4414 ; 0.215 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  6274 ; 0.311 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   522 ; 0.128 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     7 ; 0.083 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    62 ; 0.240 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    11 ; 0.192 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):     1 ; 0.043 ; 0.200       
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):  5546 ; 0.864 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  8971 ; 1.606 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  3419 ; 2.483 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  3113 ; 4.176 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
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  : NULL                                       
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: NULL                                      
REMARK   4                                                                      
REMARK   4 3BOF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-JAN-08.                  
REMARK 100 THE DEPOSITION ID IS D_1000045767.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-APR-07                          
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 23-ID-D                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9793                             
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL MONOCHROMATOR       
REMARK 200  OPTICS                         : K-B PAIR OF BIOMORPH MIRRORS FOR   
REMARK 200                                   VERTICAL AND HORIZONTAL FOCUSING   
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 300 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 136540                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 46.680                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 5.800                              
REMARK 200  R MERGE                    (I) : 0.05900                            
REMARK 200  R SYM                      (I) : 0.04800                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 22.5000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.80                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.80                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.32300                            
REMARK 200  R SYM FOR SHELL            (I) : 0.39900                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.360                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: EPMR                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.46                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.48                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 25% 1,2-PROPANEDIOL, 10% GLYCEROL, 5%    
REMARK 280  PEG 3000, 100 MM POTASIUM CITRATE PH 4.8, 1.5% 1,2,3-               
REMARK 280  HEPTANETRIOL, 10 MM YCL3. SOAKING WITH 20% 1,2-PROPANEDIOL, 10%     
REMARK 280  GLYCEROL, 5% PEG 3000, 100 MM TRIS PH 7, 1.5% 1,2,3-HEPTANETRIOL,   
REMARK 280  AND 10MM HCY , VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y+1/2,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       43.15400            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2900 ANGSTROM**2                          
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 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     PRO A   561                                                      
REMARK 465     ARG A   562                                                      
REMARK 465     ALA A   563                                                      
REMARK 465     GLU A   564                                                      
REMARK 465     VAL A   565                                                      
REMARK 465     LYS A   566                                                      
REMARK 465     VAL B   240                                                      
REMARK 465     GLU B   241                                                      
REMARK 465     ASN B   242                                                      
REMARK 465     GLY B   243                                                      
REMARK 465     PRO B   561                                                      
REMARK 465     ARG B   562                                                      
REMARK 465     ALA B   563                                                      
REMARK 465     GLU B   564                                                      
REMARK 465     VAL B   565                                                      
REMARK 465     LYS B   566                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     LYS A   9    CG   CD   CE   NZ                                   
REMARK 470     GLU A  99    CG   CD   OE1  OE2                                  
REMARK 470     GLN A 294    CG   CD   OE1  NE2                                  
REMARK 470     LYS A 328    CG   CD   CE   NZ                                   
REMARK 470     LYS A 441    CB   CG   CD   CE   NZ                              
REMARK 470     ASP A 442    CB   CG   OD1  OD2                                  
REMARK 470     LYS A 445    CG   CD   CE   NZ                                   
REMARK 470     LYS B   9    CG   CD   CE   NZ                                   
REMARK 470     GLU B  99    CG   CD   OE1  OE2                                  
REMARK 470     LYS B 237    CG   CD   CE   NZ                                   
REMARK 470     ILE B 239    CG1  CG2  CD1                                       
REMARK 470     LYS B 244    CG   CD   CE   NZ                                   
REMARK 470     THR B 245    OG1  CG2                                            
REMARK 470     GLN B 294    CG   CD   OE1  NE2                                  
REMARK 470     LYS B 328    CG   CD   CE   NZ                                   
REMARK 470     LYS B 441    CB   CG   CD   CE   NZ                              
REMARK 470     ASP B 442    CB   CG   OD1  OD2                                  
REMARK 470     LYS B 445    CG   CD   CE   NZ                                   
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    14     OD1  ASN A   289              2.06            
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    GLU A 133   CB    GLU A 133   CG     -0.127                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG B   4   NE  -  CZ  -  NH1 ANGL. DEV. =  -3.3 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    ALA A  42       63.99   -150.47                                   
REMARK 500    THR A 147       30.44     70.41                                   
REMARK 500    ASP A 199       49.08    -80.32                                   
REMARK 500    CYS A 207     -175.56     70.82                                   
REMARK 500    SER A 208      -41.61     67.47                                   
REMARK 500    CYS A 272     -158.16   -104.24                                   
REMARK 500    CYS A 273      129.65    -37.26                                   
REMARK 500    LYS A 296      -88.97    -90.58                                   
REMARK 500    LYS A 297      132.82    131.82                                   
REMARK 500    ASN A 323      118.52   -160.32                                   
REMARK 500    ASN A 384      -16.46     77.13                                   
REMARK 500    ASN A 411       76.37   -108.98                                   
REMARK 500    SER A 412      150.06    149.65                                   
REMARK 500    GLU A 559     -156.07     61.82                                   
REMARK 500    ALA B  42       61.53   -150.37                                   
REMARK 500    CYS B 207     -172.67     69.22                                   
REMARK 500    SER B 208      -39.16     67.92                                   
REMARK 500    ALA B 235       31.10    -99.56                                   
REMARK 500    THR B 245     -156.90    -64.20                                   
REMARK 500    VAL B 246      106.16     16.95                                   
REMARK 500    CYS B 272     -155.97   -111.96                                   
REMARK 500    ASN B 323      115.45   -163.08                                   
REMARK 500    ASN B 384      -15.67     79.05                                   
REMARK 500    SER B 412      122.24    106.67                                   
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 ASN A  411     SER A  412                   75.72                    
REMARK 500 LYS A  558     GLU A  559                  149.56                    
REMARK 500 ASN B  411     SER B  412                  136.61                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    ASN A 411         15.15                                           
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                               K A 703   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  19   O                                                      
REMARK 620 2 ASP A  19   OD2  69.6                                              
REMARK 620 3 GLY A  20   O    77.6  80.8                                        
REMARK 620 4 GLU A 232   OE1 104.2 107.9 171.3                                  
REMARK 620 5 GLY A 271   O    68.3 136.8  81.5  91.2                            
REMARK 620 6 HOH A 714   O   154.9 134.3  96.9  77.7  86.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 701  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 207   SG                                                     
REMARK 620 2 CYS A 272   SG  112.7                                              
REMARK 620 3 CYS A 273   SG  106.9 118.5                                        
REMARK 620 4 HCS A 711   SD  107.2 104.3 106.6                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K B 704   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B  19   O                                                      
REMARK 620 2 ASP B  19   OD2  70.4                                              
REMARK 620 3 GLY B  20   O    77.9  81.1                                        
REMARK 620 4 GLU B 232   OE1 102.5 106.5 172.1                                  
REMARK 620 5 GLY B 271   O    70.8 140.0  81.7  91.0                            
REMARK 620 6 HOH B 734   O   155.6 133.6  99.6  76.7  84.8                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN B 702  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 207   SG                                                     
REMARK 620 2 CYS B 272   SG  109.9                                              
REMARK 620 3 CYS B 273   SG  105.6 118.9                                        
REMARK 620 4 HCS B 712   SD  115.1 102.9 104.7                                  
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 701                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 702                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 703                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 704                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE YT3 A 705                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HCS A 711                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HCS B 712                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1Q8A   RELATED DB: PDB                                   
REMARK 900 SAME PROTEIN COMPLEXED WOTH CD2+ INSTEAD OF ZN2+                     
REMARK 900 RELATED ID: 3BOL   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3BQ5   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3BQ6   RELATED DB: PDB                                   
DBREF  3BOF A    1   566  UNP    Q9WYA5   Q9WYA5_THEMA     1    566             
DBREF  3BOF B    1   566  UNP    Q9WYA5   Q9WYA5_THEMA     1    566             
SEQRES   1 A  566  MET ARG ASN ARG ARG GLU VAL SER LYS LEU LEU SER GLU          
SEQRES   2 A  566  ARG VAL LEU LEU LEU ASP GLY ALA TYR GLY THR GLU PHE          
SEQRES   3 A  566  MET LYS TYR GLY TYR ASP ASP LEU PRO GLU GLU LEU ASN          
SEQRES   4 A  566  ILE LYS ALA PRO ASP VAL VAL LEU LYS VAL HIS ARG SER          
SEQRES   5 A  566  TYR ILE GLU SER GLY SER ASP VAL ILE LEU THR ASN THR          
SEQRES   6 A  566  PHE GLY ALA THR ARG MET LYS LEU ARG LYS HIS GLY LEU          
SEQRES   7 A  566  GLU ASP LYS LEU ASP PRO ILE VAL ARG ASN ALA VAL ARG          
SEQRES   8 A  566  ILE ALA ARG ARG ALA ALA GLY GLU LYS LEU VAL PHE GLY          
SEQRES   9 A  566  ASP ILE GLY PRO THR GLY GLU LEU PRO TYR PRO LEU GLY          
SEQRES  10 A  566  SER THR LEU PHE GLU GLU PHE TYR GLU ASN PHE ARG GLU          
SEQRES  11 A  566  THR VAL GLU ILE MET VAL GLU GLU GLY VAL ASP GLY ILE          
SEQRES  12 A  566  ILE PHE GLU THR PHE SER ASP ILE LEU GLU LEU LYS ALA          
SEQRES  13 A  566  ALA VAL LEU ALA ALA ARG GLU VAL SER ARG ASP VAL PHE          
SEQRES  14 A  566  LEU ILE ALA HIS MET THR PHE ASP GLU LYS GLY ARG SER          
SEQRES  15 A  566  LEU THR GLY THR ASP PRO ALA ASN PHE ALA ILE THR PHE          
SEQRES  16 A  566  ASP GLU LEU ASP ILE ASP ALA LEU GLY ILE ASN CYS SER          
SEQRES  17 A  566  LEU GLY PRO GLU GLU ILE LEU PRO ILE PHE GLN GLU LEU          
SEQRES  18 A  566  SER GLN TYR THR ASP LYS PHE LEU VAL VAL GLU PRO ASN          
SEQRES  19 A  566  ALA GLY LYS PRO ILE VAL GLU ASN GLY LYS THR VAL TYR          
SEQRES  20 A  566  PRO LEU LYS PRO HIS ASP PHE ALA VAL HIS ILE ASP SER          
SEQRES  21 A  566  TYR TYR GLU LEU GLY VAL ASN ILE PHE GLY GLY CYS CYS          
SEQRES  22 A  566  GLY THR THR PRO GLU HIS VAL LYS LEU PHE ARG LYS VAL          
SEQRES  23 A  566  LEU GLY ASN ARG LYS PRO LEU GLN ARG LYS LYS LYS ARG          
SEQRES  24 A  566  ILE PHE ALA VAL SER SER PRO SER LYS LEU VAL THR PHE          
SEQRES  25 A  566  ASP HIS PHE VAL VAL ILE GLY GLU ARG ILE ASN PRO ALA          
SEQRES  26 A  566  GLY ARG LYS LYS LEU TRP ALA GLU MET GLN LYS GLY ASN          
SEQRES  27 A  566  GLU GLU ILE VAL ILE LYS GLU ALA LYS THR GLN VAL GLU          
SEQRES  28 A  566  LYS GLY ALA GLU VAL LEU ASP VAL ASN PHE GLY ILE GLU          
SEQRES  29 A  566  SER GLN ILE ASP VAL ARG TYR VAL GLU LYS ILE VAL GLN          
SEQRES  30 A  566  THR LEU PRO TYR VAL SER ASN VAL PRO LEU SER LEU ASP          
SEQRES  31 A  566  ILE GLN ASN VAL ASP LEU THR GLU ARG ALA LEU ARG ALA          
SEQRES  32 A  566  TYR PRO GLY ARG SER LEU PHE ASN SER ALA LYS VAL ASP          
SEQRES  33 A  566  GLU GLU GLU LEU GLU MET LYS ILE ASN LEU LEU LYS LYS          
SEQRES  34 A  566  TYR GLY GLY THR LEU ILE VAL LEU LEU MET GLY LYS ASP          
SEQRES  35 A  566  VAL PRO LYS SER PHE GLU GLU ARG LYS GLU TYR PHE GLU          
SEQRES  36 A  566  LYS ALA LEU LYS ILE LEU GLU ARG HIS ASP PHE SER ASP          
SEQRES  37 A  566  ARG VAL ILE PHE ASP PRO GLY VAL LEU PRO LEU GLY ALA          
SEQRES  38 A  566  GLU GLY LYS PRO VAL GLU VAL LEU LYS THR ILE GLU PHE          
SEQRES  39 A  566  ILE SER SER LYS GLY PHE ASN THR THR VAL GLY LEU SER          
SEQRES  40 A  566  ASN LEU SER PHE GLY LEU PRO ASP ARG SER TYR TYR ASN          
SEQRES  41 A  566  THR ALA PHE LEU VAL LEU GLY ILE SER LYS GLY LEU SER          
SEQRES  42 A  566  SER ALA ILE MET ASN PRO LEU ASP GLU THR LEU MET LYS          
SEQRES  43 A  566  THR LEU ASN ALA THR LEU VAL ILE LEU GLU LYS LYS GLU          
SEQRES  44 A  566  LEU PRO ARG ALA GLU VAL LYS                                  
SEQRES   1 B  566  MET ARG ASN ARG ARG GLU VAL SER LYS LEU LEU SER GLU          
SEQRES   2 B  566  ARG VAL LEU LEU LEU ASP GLY ALA TYR GLY THR GLU PHE          
SEQRES   3 B  566  MET LYS TYR GLY TYR ASP ASP LEU PRO GLU GLU LEU ASN          
SEQRES   4 B  566  ILE LYS ALA PRO ASP VAL VAL LEU LYS VAL HIS ARG SER          
SEQRES   5 B  566  TYR ILE GLU SER GLY SER ASP VAL ILE LEU THR ASN THR          
SEQRES   6 B  566  PHE GLY ALA THR ARG MET LYS LEU ARG LYS HIS GLY LEU          
SEQRES   7 B  566  GLU ASP LYS LEU ASP PRO ILE VAL ARG ASN ALA VAL ARG          
SEQRES   8 B  566  ILE ALA ARG ARG ALA ALA GLY GLU LYS LEU VAL PHE GLY          
SEQRES   9 B  566  ASP ILE GLY PRO THR GLY GLU LEU PRO TYR PRO LEU GLY          
SEQRES  10 B  566  SER THR LEU PHE GLU GLU PHE TYR GLU ASN PHE ARG GLU          
SEQRES  11 B  566  THR VAL GLU ILE MET VAL GLU GLU GLY VAL ASP GLY ILE          
SEQRES  12 B  566  ILE PHE GLU THR PHE SER ASP ILE LEU GLU LEU LYS ALA          
SEQRES  13 B  566  ALA VAL LEU ALA ALA ARG GLU VAL SER ARG ASP VAL PHE          
SEQRES  14 B  566  LEU ILE ALA HIS MET THR PHE ASP GLU LYS GLY ARG SER          
SEQRES  15 B  566  LEU THR GLY THR ASP PRO ALA ASN PHE ALA ILE THR PHE          
SEQRES  16 B  566  ASP GLU LEU ASP ILE ASP ALA LEU GLY ILE ASN CYS SER          
SEQRES  17 B  566  LEU GLY PRO GLU GLU ILE LEU PRO ILE PHE GLN GLU LEU          
SEQRES  18 B  566  SER GLN TYR THR ASP LYS PHE LEU VAL VAL GLU PRO ASN          
SEQRES  19 B  566  ALA GLY LYS PRO ILE VAL GLU ASN GLY LYS THR VAL TYR          
SEQRES  20 B  566  PRO LEU LYS PRO HIS ASP PHE ALA VAL HIS ILE ASP SER          
SEQRES  21 B  566  TYR TYR GLU LEU GLY VAL ASN ILE PHE GLY GLY CYS CYS          
SEQRES  22 B  566  GLY THR THR PRO GLU HIS VAL LYS LEU PHE ARG LYS VAL          
SEQRES  23 B  566  LEU GLY ASN ARG LYS PRO LEU GLN ARG LYS LYS LYS ARG          
SEQRES  24 B  566  ILE PHE ALA VAL SER SER PRO SER LYS LEU VAL THR PHE          
SEQRES  25 B  566  ASP HIS PHE VAL VAL ILE GLY GLU ARG ILE ASN PRO ALA          
SEQRES  26 B  566  GLY ARG LYS LYS LEU TRP ALA GLU MET GLN LYS GLY ASN          
SEQRES  27 B  566  GLU GLU ILE VAL ILE LYS GLU ALA LYS THR GLN VAL GLU          
SEQRES  28 B  566  LYS GLY ALA GLU VAL LEU ASP VAL ASN PHE GLY ILE GLU          
SEQRES  29 B  566  SER GLN ILE ASP VAL ARG TYR VAL GLU LYS ILE VAL GLN          
SEQRES  30 B  566  THR LEU PRO TYR VAL SER ASN VAL PRO LEU SER LEU ASP          
SEQRES  31 B  566  ILE GLN ASN VAL ASP LEU THR GLU ARG ALA LEU ARG ALA          
SEQRES  32 B  566  TYR PRO GLY ARG SER LEU PHE ASN SER ALA LYS VAL ASP          
SEQRES  33 B  566  GLU GLU GLU LEU GLU MET LYS ILE ASN LEU LEU LYS LYS          
SEQRES  34 B  566  TYR GLY GLY THR LEU ILE VAL LEU LEU MET GLY LYS ASP          
SEQRES  35 B  566  VAL PRO LYS SER PHE GLU GLU ARG LYS GLU TYR PHE GLU          
SEQRES  36 B  566  LYS ALA LEU LYS ILE LEU GLU ARG HIS ASP PHE SER ASP          
SEQRES  37 B  566  ARG VAL ILE PHE ASP PRO GLY VAL LEU PRO LEU GLY ALA          
SEQRES  38 B  566  GLU GLY LYS PRO VAL GLU VAL LEU LYS THR ILE GLU PHE          
SEQRES  39 B  566  ILE SER SER LYS GLY PHE ASN THR THR VAL GLY LEU SER          
SEQRES  40 B  566  ASN LEU SER PHE GLY LEU PRO ASP ARG SER TYR TYR ASN          
SEQRES  41 B  566  THR ALA PHE LEU VAL LEU GLY ILE SER LYS GLY LEU SER          
SEQRES  42 B  566  SER ALA ILE MET ASN PRO LEU ASP GLU THR LEU MET LYS          
SEQRES  43 B  566  THR LEU ASN ALA THR LEU VAL ILE LEU GLU LYS LYS GLU          
SEQRES  44 B  566  LEU PRO ARG ALA GLU VAL LYS                                  
HET     ZN  A 701       1                                                       
HET      K  A 703       1                                                       
HET    YT3  A 705       1                                                       
HET    HCS  A 711       8                                                       
HET     ZN  B 702       1                                                       
HET      K  B 704       1                                                       
HET    HCS  B 712       8                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM       K POTASSIUM ION                                                    
HETNAM     YT3 YTTRIUM (III) ION                                                
HETNAM     HCS 2-AMINO-4-MERCAPTO-BUTYRIC ACID                                  
HETSYN     HCS L-HOMOCYSTEINE                                                   
FORMUL   3   ZN    2(ZN 2+)                                                     
FORMUL   4    K    2(K 1+)                                                      
FORMUL   5  YT3    Y 3+                                                         
FORMUL   6  HCS    2(C4 H9 N O2 S)                                              
FORMUL  10  HOH   *411(H2 O)                                                    
HELIX    1   1 ASN A    3  ARG A   14  1                                  12    
HELIX    2   2 TYR A   22  MET A   27  1                                   6    
HELIX    3   3 LYS A   28  GLY A   30  5                                   3    
HELIX    4   4 LEU A   34  GLU A   36  5                                   3    
HELIX    5   5 GLU A   37  ALA A   42  1                                   6    
HELIX    6   6 ALA A   42  GLU A   55  1                                  14    
HELIX    7   7 THR A   69  ARG A   74  1                                   6    
HELIX    8   8 LYS A   75  GLY A   77  5                                   3    
HELIX    9   9 LEU A   78  ASP A   80  5                                   3    
HELIX   10  10 LYS A   81  GLY A   98  1                                  18    
HELIX   11  11 LEU A  120  GLU A  138  1                                  19    
HELIX   12  12 ASP A  150  SER A  165  1                                  16    
HELIX   13  13 ASP A  187  GLU A  197  1                                  11    
HELIX   14  14 GLY A  210  TYR A  224  1                                  15    
HELIX   15  15 LYS A  250  VAL A  256  1                                   7    
HELIX   16  16 HIS A  257  LEU A  264  1                                   8    
HELIX   17  17 THR A  276  GLY A  288  1                                  13    
HELIX   18  18 ARG A  327  LYS A  336  1                                  10    
HELIX   19  19 GLU A  339  LYS A  352  1                                  14    
HELIX   20  20 ILE A  363  ILE A  367  5                                   5    
HELIX   21  21 ASP A  368  SER A  383  1                                  16    
HELIX   22  22 ASN A  393  TYR A  404  1                                  12    
HELIX   23  23 ASP A  416  GLY A  431  1                                  16    
HELIX   24  24 SER A  446  HIS A  464  1                                  19    
HELIX   25  25 PHE A  466  ASP A  468  5                                   3    
HELIX   26  26 PRO A  478  GLU A  482  5                                   5    
HELIX   27  27 LYS A  484  LYS A  498  1                                  15    
HELIX   28  28 GLY A  505  PHE A  511  5                                   7    
HELIX   29  29 ASP A  515  LYS A  530  1                                  16    
HELIX   30  30 ASP A  541  LEU A  555  1                                  15    
HELIX   31  31 ASN B    3  ARG B   14  1                                  12    
HELIX   32  32 TYR B   22  TYR B   29  1                                   8    
HELIX   33  33 LEU B   34  GLU B   36  5                                   3    
HELIX   34  34 GLU B   37  ALA B   42  1                                   6    
HELIX   35  35 ALA B   42  GLY B   57  1                                  16    
HELIX   36  36 THR B   69  ARG B   74  1                                   6    
HELIX   37  37 LYS B   75  GLY B   77  5                                   3    
HELIX   38  38 LEU B   78  ASP B   80  5                                   3    
HELIX   39  39 LYS B   81  GLY B   98  1                                  18    
HELIX   40  40 LEU B  120  GLY B  139  1                                  20    
HELIX   41  41 ASP B  150  SER B  165  1                                  16    
HELIX   42  42 ASP B  187  GLU B  197  1                                  11    
HELIX   43  43 GLY B  210  TYR B  224  1                                  15    
HELIX   44  44 LYS B  250  VAL B  256  1                                   7    
HELIX   45  45 HIS B  257  LEU B  264  1                                   8    
HELIX   46  46 THR B  276  GLY B  288  1                                  13    
HELIX   47  47 ARG B  327  LYS B  336  1                                  10    
HELIX   48  48 GLU B  339  LYS B  352  1                                  14    
HELIX   49  49 ILE B  363  ILE B  367  5                                   5    
HELIX   50  50 ASP B  368  SER B  383  1                                  16    
HELIX   51  51 ASN B  393  TYR B  404  1                                  12    
HELIX   52  52 ASP B  416  GLY B  431  1                                  16    
HELIX   53  53 SER B  446  HIS B  464  1                                  19    
HELIX   54  54 PHE B  466  ASP B  468  5                                   3    
HELIX   55  55 PRO B  478  GLU B  482  5                                   5    
HELIX   56  56 LYS B  484  LYS B  498  1                                  15    
HELIX   57  57 GLY B  505  PHE B  511  5                                   7    
HELIX   58  58 ASP B  515  LYS B  530  1                                  16    
HELIX   59  59 ASP B  541  LEU B  555  1                                  15    
SHEET    1   A 8 LEU A  16  LEU A  17  0                                        
SHEET    2   A 8 ILE A 268  PHE A 269  1  O  PHE A 269   N  LEU A  16           
SHEET    3   A 8 PHE A 228  GLU A 232  1  N  VAL A 231   O  ILE A 268           
SHEET    4   A 8 ALA A 202  ASN A 206  1  N  LEU A 203   O  PHE A 228           
SHEET    5   A 8 LEU A 170  MET A 174  1  N  ALA A 172   O  ALA A 202           
SHEET    6   A 8 GLY A 142  PHE A 148  1  N  ILE A 143   O  ILE A 171           
SHEET    7   A 8 LEU A 101  ILE A 106  1  N  GLY A 104   O  GLY A 142           
SHEET    8   A 8 VAL A  60  LEU A  62  1  N  ILE A  61   O  PHE A 103           
SHEET    1   B 2 ILE A 239  GLU A 241  0                                        
SHEET    2   B 2 LYS A 244  VAL A 246 -1  O  VAL A 246   N  ILE A 239           
SHEET    1   C 2 ALA A 302  SER A 304  0                                        
SHEET    2   C 2 LEU A 309  THR A 311 -1  O  VAL A 310   N  VAL A 303           
SHEET    1   D 7 VAL A 470  ASP A 473  0                                        
SHEET    2   D 7 THR A 433  LEU A 437  1  N  VAL A 436   O  ASP A 473           
SHEET    3   D 7 LEU A 409  LYS A 414  1  N  PHE A 410   O  ILE A 435           
SHEET    4   D 7 LEU A 387  ASP A 390  1  N  LEU A 389   O  ASN A 411           
SHEET    5   D 7 VAL A 356  ASN A 360  1  N  LEU A 357   O  SER A 388           
SHEET    6   D 7 VAL A 316  ILE A 322  1  N  GLY A 319   O  ASP A 358           
SHEET    7   D 7 SER A 534  MET A 537  1  O  ALA A 535   N  ILE A 318           
SHEET    1   E 8 LEU B  16  LEU B  17  0                                        
SHEET    2   E 8 ILE B 268  PHE B 269  1  O  PHE B 269   N  LEU B  16           
SHEET    3   E 8 PHE B 228  GLU B 232  1  N  VAL B 231   O  ILE B 268           
SHEET    4   E 8 ALA B 202  ASN B 206  1  N  LEU B 203   O  PHE B 228           
SHEET    5   E 8 LEU B 170  MET B 174  1  N  ALA B 172   O  ALA B 202           
SHEET    6   E 8 ILE B 143  PHE B 148  1  N  ILE B 143   O  ILE B 171           
SHEET    7   E 8 LEU B 101  ILE B 106  1  N  GLY B 104   O  ILE B 144           
SHEET    8   E 8 VAL B  60  LEU B  62  1  N  ILE B  61   O  PHE B 103           
SHEET    1   F 2 ALA B 302  SER B 304  0                                        
SHEET    2   F 2 LEU B 309  THR B 311 -1  O  VAL B 310   N  VAL B 303           
SHEET    1   G 8 ASN B 501  THR B 502  0                                        
SHEET    2   G 8 VAL B 470  ASP B 473  1  N  PHE B 472   O  ASN B 501           
SHEET    3   G 8 THR B 433  LEU B 437  1  N  VAL B 436   O  ILE B 471           
SHEET    4   G 8 LEU B 409  LYS B 414  1  N  PHE B 410   O  THR B 433           
SHEET    5   G 8 LEU B 387  ASP B 390  1  N  LEU B 389   O  ASN B 411           
SHEET    6   G 8 VAL B 356  ASN B 360  1  N  LEU B 357   O  SER B 388           
SHEET    7   G 8 VAL B 316  ILE B 322  1  N  GLY B 319   O  ASP B 358           
SHEET    8   G 8 SER B 534  MET B 537  1  O  ALA B 535   N  ILE B 318           
LINK         O   ASP A  19                 K     K A 703     1555   1555  2.88  
LINK         OD2 ASP A  19                 K     K A 703     1555   1555  2.80  
LINK         O   GLY A  20                 K     K A 703     1555   1555  2.74  
LINK         SG  CYS A 207                ZN    ZN A 701     1555   1555  2.42  
LINK         OE1 GLU A 232                 K     K A 703     1555   1555  2.74  
LINK         O   GLY A 271                 K     K A 703     1555   1555  2.72  
LINK         SG  CYS A 272                ZN    ZN A 701     1555   1555  2.30  
LINK         SG  CYS A 273                ZN    ZN A 701     1555   1555  2.37  
LINK        ZN    ZN A 701                 SD  HCS A 711     1555   1555  2.34  
LINK         K     K A 703                 O   HOH A 714     1555   1555  2.87  
LINK         O   ASP B  19                 K     K B 704     1555   1555  2.84  
LINK         OD2 ASP B  19                 K     K B 704     1555   1555  2.78  
LINK         O   GLY B  20                 K     K B 704     1555   1555  2.76  
LINK         SG  CYS B 207                ZN    ZN B 702     1555   1555  2.26  
LINK         OE1 GLU B 232                 K     K B 704     1555   1555  2.70  
LINK         O   GLY B 271                 K     K B 704     1555   1555  2.62  
LINK         SG  CYS B 272                ZN    ZN B 702     1555   1555  2.33  
LINK         SG  CYS B 273                ZN    ZN B 702     1555   1555  2.45  
LINK        ZN    ZN B 702                 SD  HCS B 712     1555   1555  2.32  
LINK         K     K B 704                 O   HOH B 734     1555   1555  2.83  
CISPEP   1 TYR A  114    PRO A  115          0        12.27                     
CISPEP   2 TYR B  114    PRO B  115          0         5.08                     
SITE     1 AC1  3 CYS A 207  CYS A 272  CYS A 273                               
SITE     1 AC2  3 CYS B 207  CYS B 272  CYS B 273                               
SITE     1 AC3  6 ASP A  19  GLY A  20  LEU A  62  GLU A 232                    
SITE     2 AC3  6 GLY A 271  HOH A 714                                          
SITE     1 AC4  6 ASP B  19  GLY B  20  LEU B  62  GLU B 232                    
SITE     2 AC4  6 GLY B 271  HOH B 734                                          
SITE     1 AC5  4 ASP A 253  GLU A 421  HOH A 908  HOH A 997                    
SITE     1 AC6 14 ALA A  21  TYR A  22  GLY A  23  LEU A  62                    
SITE     2 AC6 14 PHE A  66  ASP A 105  GLU A 146  THR A 147                    
SITE     3 AC6 14 CYS A 272  HOH A 714  HOH A 719  HOH A 724                    
SITE     4 AC6 14 HOH A 756  HOH A1121                                          
SITE     1 AC7 12 ALA B  21  TYR B  22  GLY B  23  LEU B  62                    
SITE     2 AC7 12 ASP B 105  GLU B 146  THR B 147  CYS B 272                    
SITE     3 AC7 12 HOH B 734  HOH B 741  HOH B 769  HOH B 774                    
CRYST1   59.067   86.308  125.879  90.00 100.03  90.00 P 1 21 1      4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.016930  0.000000  0.002995        0.00000                         
SCALE2      0.000000  0.011586  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008067        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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