HEADER    HYDROLASE (UREA AMIDO)                  16-FEB-95   1KAU              
OBSLTE     15-OCT-97 1KAU      1FWJ                                             
TITLE     THE CRYSTAL STRUCTURE OF UREASE FROM KLEBSIELLA AEROGENES             
TITLE    2 AT 2.2 ANGSTROMS RESOLUTION                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: KLEBSIELLA AEROGENES UREASE;                               
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.5.1.5;                                                         
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: KLEBSIELLA AEROGENES UREASE;                               
COMPND   7 CHAIN: B;                                                            
COMPND   8 EC: 3.5.1.5;                                                         
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: KLEBSIELLA AEROGENES UREASE;                               
COMPND  11 CHAIN: C;                                                            
COMPND  12 EC: 3.5.1.5                                                          
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: KLEBSIELLA AEROGENES;                           
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 ORGANISM_SCIENTIFIC: KLEBSIELLA AEROGENES;                           
SOURCE   5 MOL_ID: 3;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: KLEBSIELLA AEROGENES                            
KEYWDS    NICKEL METALLOENZYME                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    E.JABRI,M.B.CARR,R.P.HAUSINGER,P.A.KARPLUS                            
REVDAT   1   10-JUL-95 1KAU    0                                                
JRNL        AUTH   E.JABRI,M.B.CARR,R.P.HAUSINGER,P.A.KARPLUS                   
JRNL        TITL   THE CRYSTAL STRUCTURE OF UREASE FROM KLEBSIELLA              
JRNL        TITL 2 AEROGENES AT 2.2 ANGSTROMS RESOLUTION                        
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   I.-S.PARK,R.P.HAUSINGER                                      
REMARK   1  TITL   REQUIREMENT OF CARBON DIOXIDE FOR IN VITRO                   
REMARK   1  TITL 2 ASSEMBLY OF THE UREASE NICKEL METALLOCENTER                  
REMARK   1  REF    SCIENCE                       V. 267  1156 1995              
REMARK   1  REFN   ASTM SCIEAS  US ISSN 0036-8075                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   E.JABRI,M.H.LEE,R.P.HAUSINGER,P.A.KARPLUS                    
REMARK   1  TITL   PRELIMINARY CRYSTALLOGRAPHIC STUDIES OF UREASE               
REMARK   1  TITL 2 FROM JACK BEAN AND FROM KLEBSIELLA AEROGENES                 
REMARK   1  REF    J.MOL.BIOL.                   V. 227   934 1992              
REMARK   1  REFN   ASTM JMOBAK  UK ISSN 0022-2836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION. 2.20 ANGSTROMS.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 1KAU                                          
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 94.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 41809                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.182                           
REMARK   3   FREE R VALUE                     : 0.232                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 5784                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 5                                       
REMARK   3   SOLVENT ATOMS            : 177                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.20                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.008                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.88                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1KAU COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998                       
REMARK   5                                                                      
REMARK   5 1KAU BY REQUEST OF THE DEPOSITOR, THE PROTEIN DATA BANK HAS          
REMARK   5 NOT 1KAU APPLIED THE IUPAC-IUB RECOMMENDATIONS REGARDING             
REMARK   5 THE 1KAU DESIGNATION OF BRANCHES 1 AND 2 OF SIDE CHAIN               
REMARK   5 ATOMS IN 1KAU RESIDUES ARG, ASP, GLU, LEU, PHE, TYR, AND             
REMARK   5 VAL TO THIS 1KAU ENTRY. 1KAU                                         
REMARK   6                                                                      
REMARK   6 1KAU RAMACHANDRAN PLOT: (AS DEFINED BY PROCHECK) 1KAU 87.5%          
REMARK   6 IN MOST FAVORED REGION 1KAU 11.4% IN ALLOWED REGIONS 1KAU            
REMARK   6 1.1% IN GENEROUSLY ALLOWED REGIONS 1KAU SEVEN RESIDUES IN            
REMARK   6 THIS REGION ARE: 1KAU ALA C 24, PHE B 93 - IN TYPE 2' TURNS          
REMARK   6 1KAU HIS C 527 - TYPE 2 TURN 1KAU HIS C 272, ASP C 360 -             
REMARK   6 NICKEL LIGANDS 1KAU MET C 317 - HIGH B-FACTOR 1KAU ALA C             
REMARK   6 561 - IN CLEAR DENSITY 1KAU                                          
REMARK   7                                                                      
REMARK   7 1KAU THREE NONIDENTICAL CHAINS, GAMMA (A), BETA (B), AND             
REMARK   7 1KAU ALPHA (C), FORM ONE (ABC)-UNIT. THE ASYMMETRIC UNIT             
REMARK   7 1KAU CONTAINS ONE (ABC)-UNIT. THE GAMMA CHAIN WAS CHOSEN AS          
REMARK   7 1KAU CHAIN A BECAUSE IT HAS SEQUENCE HOMOLOGY TO THE 1KAU N          
REMARK   7 -TERMINUS OF THE ONE-SUBUNIT JACK BEAN UREASES, WHEREAS              
REMARK   7 1KAU THE K. AEROGENES ALPHA CHAIN C HAS SEQUENCE HOMOLOGY            
REMARK   7 TO 1KAU THE C-TERMINUS OF JACK BEAN UREASE. 1KAU                     
REMARK   8                                                                      
REMARK   8 1KAU THREE UNITS (A, B, C) PACK TIGHTLY AT THE                       
REMARK   8 CRYSTALLOGRAPHIC 1KAU THREE-FOLD TO FORM A TRIMER OF                 
REMARK   8 TRIMERS OBSERVED IN 1KAU SOLUTION. 1KAU                              
REMARK   9                                                                      
REMARK   9 1KAU THE ACTIVE SITE AND BI-NICKEL METALLOCENTER ARE                 
REMARK   9 LOCATED 1KAU IN CHAIN C AT THE C-TERMINUS OF THE STRANDS IN          
REMARK   9 AN 1KAU ALPHA-BETA BARREL. THIS BARREL IS STRUCTURALLY 1KAU          
REMARK   9 HOMOLOGOUS TO THAT OF ADENOSINE DEAMINASE, A MONO-ZINC 1KAU          
REMARK   9 METALLOENZYME. 1KAU                                                  
REMARK  10                                                                      
REMARK  10 1KAU RESIDUE C 217 IS A MODIFIED LYSINE WHICH IS                     
REMARK  10 CARBAMYLATED 1KAU AT THE ZETA-AMINO GROUP. THE CARBAMYL              
REMARK  10 GROUP IS PRESENTED 1KAU AS HET GROUP CBX AT THE END OF               
REMARK  10 CHAIN C. 1KAU                                                        
REMARK  11                                                                      
REMARK  11 1KAU NO ELECTRON DENSITY WAS OBSERVED FOR GLU 102 - GLU 106          
REMARK  11 1KAU IN CHAIN B. NO COORDINATES ARE PRESENTED FOR THESE              
REMARK  11 1KAU RESIDUES. MET 1 IN CHAIN C IS POSTTRANSLATIONALLY               
REMARK  11 CLEAVED. 1KAU                                                        
REMARK  12                                                                      
REMARK  12 1KAU RESIDUES 308 - 335 IN CHAIN C HAVE HIGH B-FACTORS.              
REMARK  12 1KAU THEY CORRESPOND TO A MOBILE LOOP NEAR THE ACTIVE SITE.          
REMARK  12 1KAU                                                                 
REMARK  13                                                                      
REMARK  13 1KAU SITE 1KAU SITE_IDENTIFIER: NI1 1KAU NICKEL                      
REMARK  13 METALLOCENTER. 1KAU SITE_IDENTIFIER: AC2 1KAU RESIDUE                
REMARK  13 IMPLICATED IN CATALYSIS. 1KAU                                        
REMARK  14                                                                      
REMARK  14 1KAU SYMMETRY 1KAU THE CRYSTALLOGRAPHIC SYMMETRY                     
REMARK  14 TRANSFORMATIONS PRESENTED 1KAU BELOW GENERATE THE SUBUNITS           
REMARK  14 OF THE POLYMERIC MOLECULE. 1KAU 1KAU TRIMER 2 OF TRIMER OF           
REMARK  14 TRIMERS 1KAU 1KAU APPLIED TO RESIDUES: A 1 .. A 100 1KAU             
REMARK  14 SYMMETRY1 1 0.000000 1.000000 0.000000 0.00000 1KAU                  
REMARK  14 SYMMETRY2 1 0.000000 0.000000 1.000000 0.00000 1KAU                  
REMARK  14 SYMMETRY3 1 1.000000 0.000000 0.000000 0.00000 1KAU 1KAU             
REMARK  14 APPLIED TO RESIDUES: B 1 .. B 101 1KAU SYMMETRY1 2 0.000000          
REMARK  14 1.000000 0.000000 0.00000 1KAU SYMMETRY2 2 0.000000                  
REMARK  14 0.000000 1.000000 0.00000 1KAU SYMMETRY3 2 1.000000                  
REMARK  14 0.000000 0.000000 0.00000 1KAU 1KAU APPLIED TO RESIDUES: C           
REMARK  14 1 .. C 767 1KAU SYMMETRY1 3 0.000000 1.000000 0.000000               
REMARK  14 0.00000 1KAU SYMMETRY2 3 0.000000 0.000000 1.000000 0.00000          
REMARK  14 1KAU SYMMETRY3 3 1.000000 0.000000 0.000000 0.00000 1KAU             
REMARK  14 1KAU TRIMER 3 OF TRIMER OF TRIMERS 1KAU 1KAU APPLIED TO              
REMARK  14 RESIDUES: A 1 .. A 100 1KAU SYMMETRY1 4 0.000000 0.000000            
REMARK  14 1.000000 0.00000 1KAU SYMMETRY2 4 1.000000 0.000000                  
REMARK  14 0.000000 0.00000 1KAU SYMMETRY3 4 0.000000 1.000000                  
REMARK  14 0.000000 0.00000 1KAU 1KAU APPLIED TO RESIDUES: B 1 .. B             
REMARK  14 101 1KAU SYMMETRY1 5 0.000000 0.000000 1.000000 0.00000              
REMARK  14 1KAU SYMMETRY2 5 1.000000 0.000000 0.000000 0.00000 1KAU             
REMARK  14 SYMMETRY3 5 0.000000 1.000000 0.000000 0.00000 1KAU 1KAU             
REMARK  14 APPLIED TO RESIDUES: C 1 .. C 767 1KAU SYMMETRY1 6 0.000000          
REMARK  14 0.000000 1.000000 0.00000 1KAU SYMMETRY2 6 1.000000                  
REMARK  14 0.000000 0.000000 0.00000 1KAU SYMMETRY3 6 0.000000                  
REMARK  14 1.000000 0.000000 0.00000 1KAU                                       
REMARK  15                                                                      
REMARK  15 1KAU NI C 574 IS COORDINATED BY ND1 HIS C 246, NE2 HIS C             
REMARK  15 272, 1KAU AND O1 LYS C 217 IN A PSEUDO TETRAHEDRAL GEOMETRY          
REMARK  15 WITH AN 1KAU EMPTY FOURTH SITE. 1KAU                                 
REMARK  16                                                                      
REMARK  16 1KAU NI C 575 IS COORDINATED BY NE2 HIS C 134, NE2 HIS C             
REMARK  16 136, 1KAU OD1 ASP C 360, O LYS C 217, AND O HOH 1 IN A               
REMARK  16 ROUGHLY 1KAU TRIGONAL BIPYRAMIDAL OR SQUARE PYRAMIDAL                
REMARK  16 GEOMETRY. 1KAU                                                       
REMARK  17                                                                      
REMARK  17 1KAU HOH 1 IS THE CATALYTIC WATER MOLECULE. 1KAU                     
REMARK  18                                                                      
REMARK  18 1KAU EXPERIMENTAL DETAILS 1KAU WAVELENGTH OR RANGE (A) :             
REMARK  18 1.54 1KAU DETECTOR MANUFACTURER : SDMS 1KAU INTENSITY-               
REMARK  18 INTEGRATION SOFTWARE : SDMS 1KAU DATA REDUNDANCY : 7. 1KAU           
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 42583                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 92.0                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.72                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 21 3                           
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   1/2-X,-Y,1/2+Z                                          
REMARK 290       3555   -X,1/2+Y,1/2-Z                                          
REMARK 290       4555   1/2+X,1/2-Y,-Z                                          
REMARK 290       5555   Z,X,Y                                                   
REMARK 290       6555   1/2+Z,1/2-X,-Y                                          
REMARK 290       7555   1/2-Z,-X,1/2+Y                                          
REMARK 290       8555   -Z,1/2+X,1/2-Y                                          
REMARK 290       9555   Y,Z,X                                                   
REMARK 290      10555   -Y,1/2+Z,1/2-X                                          
REMARK 290      11555   1/2+Y,1/2-Z,-X                                          
REMARK 290      12555   1/2-Y,-Z,1/2+X                                          
REMARK 290      13555   1/2+X,1/2+Y,1/2+Z                                       
REMARK 290      14555   -X,1/2-Y,Z                                              
REMARK 290      15555   1/2-X,Y,-Z                                              
REMARK 290      16555   X,-Y,1/2-Z                                              
REMARK 290      17555   1/2+Z,1/2+X,1/2+Y                                       
REMARK 290      18555   Z,-X,1/2-Y                                              
REMARK 290      19555   -Z,1/2-X,Y                                              
REMARK 290      20555   1/2-Z,X,-Y                                              
REMARK 290      21555   1/2+Y,1/2+Z,1/2+X                                       
REMARK 290      22555   1/2-Y,Z,-X                                              
REMARK 290      23555   Y,-Z,1/2-X                                              
REMARK 290      24555   -Y,1/2-Z,X                                              
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       85.40000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       85.40000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       85.40000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       85.40000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       85.40000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY2   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   6  0.000000  0.000000  1.000000       85.40000            
REMARK 290   SMTRY2   6 -1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY3   6  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   7  0.000000  0.000000 -1.000000       85.40000            
REMARK 290   SMTRY2   7 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  1.000000  0.000000       85.40000            
REMARK 290   SMTRY1   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY2   8  1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY3   8  0.000000 -1.000000  0.000000       85.40000            
REMARK 290   SMTRY1   9  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   9  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY3   9  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  10  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  10  0.000000  0.000000  1.000000       85.40000            
REMARK 290   SMTRY3  10 -1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY1  11  0.000000  1.000000  0.000000       85.40000            
REMARK 290   SMTRY2  11  0.000000  0.000000 -1.000000       85.40000            
REMARK 290   SMTRY3  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  12  0.000000 -1.000000  0.000000       85.40000            
REMARK 290   SMTRY2  12  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY3  12  1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY1  13  1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000       85.40000            
REMARK 290   SMTRY3  13  0.000000  0.000000  1.000000       85.40000            
REMARK 290   SMTRY1  14 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  14  0.000000 -1.000000  0.000000       85.40000            
REMARK 290   SMTRY3  14  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1  15 -1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY2  15  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  15  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1  16  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  16  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000       85.40000            
REMARK 290   SMTRY1  17  0.000000  0.000000  1.000000       85.40000            
REMARK 290   SMTRY2  17  1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY3  17  0.000000  1.000000  0.000000       85.40000            
REMARK 290   SMTRY1  18  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY2  18 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3  18  0.000000 -1.000000  0.000000       85.40000            
REMARK 290   SMTRY1  19  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY2  19 -1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY3  19  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY1  20  0.000000  0.000000 -1.000000       85.40000            
REMARK 290   SMTRY2  20  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3  20  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY1  21  0.000000  1.000000  0.000000       85.40000            
REMARK 290   SMTRY2  21  0.000000  0.000000  1.000000       85.40000            
REMARK 290   SMTRY3  21  1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY1  22  0.000000 -1.000000  0.000000       85.40000            
REMARK 290   SMTRY2  22  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY3  22 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  23  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  23  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY3  23 -1.000000  0.000000  0.000000       85.40000            
REMARK 290   SMTRY1  24  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  24  0.000000  0.000000 -1.000000       85.40000            
REMARK 290   SMTRY3  24  1.000000  0.000000  0.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT             
REMARK 300 WHICH CONSISTS OF 3 CHAIN(S). SEE REMARK 350 FOR                     
REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S).                
REMARK 350                                                                      
REMARK 350 GENERATING THE BIOMOLECULE                                           
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 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
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     GLU B   102                                                      
REMARK 465     VAL B   103                                                      
REMARK 465     ASN B   104                                                      
REMARK 465     ASP B   105                                                      
REMARK 465     GLU B   106                                                      
REMARK 465     MET C     1                                                      
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                             
REMARK 500   NZ   LYS C   217     C    CBX C   217              1.33            
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),F6.3)                  
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: ENGH AND HUBER, 1991                                
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    MET A  57   SD    MET A  57   CE     0.045                        
REMARK 500    MET C 315   SD    MET C 315   CE    -0.052                        
REMARK 500    MET C 476   CG    MET C 476   SD     0.044                        
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: ENGH AND HUBER, 1991                                
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    HIS B   7   N   -  CA  -  C   ANGL. DEV. = -9.9 DEGREES           
REMARK 500    THR C  38   N   -  CA  -  C   ANGL. DEV. = -9.6 DEGREES           
REMARK 500    ILE C  81   N   -  CA  -  C   ANGL. DEV. =-11.3 DEGREES           
REMARK 500    ILE C  96   N   -  CA  -  C   ANGL. DEV. =-11.4 DEGREES           
REMARK 500    THR C 171   N   -  CA  -  C   ANGL. DEV. =-12.3 DEGREES           
REMARK 500    GLY C 173   N   -  CA  -  C   ANGL. DEV. = 11.8 DEGREES           
REMARK 500    HIS C 246   N   -  CA  -  C   ANGL. DEV. =-13.7 DEGREES           
REMARK 500    ASP C 283   N   -  CA  -  C   ANGL. DEV. = 10.8 DEGREES           
REMARK 500    THR C 298   N   -  CA  -  C   ANGL. DEV. =-11.9 DEGREES           
REMARK 500    ASN C 299   N   -  CA  -  C   ANGL. DEV. = 16.6 DEGREES           
REMARK 500    PHE C 354   N   -  CA  -  C   ANGL. DEV. =-10.4 DEGREES           
REMARK 500    ASP C 360   N   -  CA  -  C   ANGL. DEV. = -9.5 DEGREES           
REMARK 500    LEU C 372   CA  -  CB  -  CG  ANGL. DEV. =  9.3 DEGREES           
REMARK 500    SER C 436   N   -  CA  -  C   ANGL. DEV. =-12.2 DEGREES           
REMARK 500    THR C 490   N   -  CA  -  C   ANGL. DEV. =-10.9 DEGREES           
REMARK 500    GLN C 562   N   -  CA  -  C   ANGL. DEV. =  9.8 DEGREES           
REMARK 999                                                                      
REMARK 999 1KAU CROSS REFERENCE TO SEQUENCE DATABASE 1KAU SWISS-PROT            
REMARK 999 ENTRY NAME PDB ENTRY CHAIN NAME 1KAU URE3_KLEAE A 1KAU 1KAU          
REMARK 999 CROSS REFERENCE TO SEQUENCE DATABASE 1KAU SWISS-PROT ENTRY           
REMARK 999 NAME PDB ENTRY CHAIN NAME 1KAU URE2_KLEAE B 1KAU 1KAU CROSS          
REMARK 999 REFERENCE TO SEQUENCE DATABASE 1KAU SWISS-PROT ENTRY NAME            
REMARK 999 PDB ENTRY CHAIN NAME 1KAU URE1_KLEAE C 1KAU 1KAU SEQUENCE            
REMARK 999 1KAU REFERENCE 1KAU DATABASE: GENBANK 1KAU ENTRY_NAME:               
REMARK 999 M36068 1KAU REFERENCE: S. B. MULROONEY, R. P. HAUSINGER,             
REMARK 999 SEQUENCE OF 1KAU THE KLEBSIELLA AEROGENES UREASE GENES               
REMARK 999 EVIDENCE FOR 1KAU ACCESSORY PROTEINS FACILITATING NICKEL             
REMARK 999 INCORPORATION. 1KAU J. BACTERIOL. 172: 5837-5843 (1990).             
REMARK 999 1KAU 1KAU NON-STANDARD RESIDUES: LYS C 217 HAS CBX                   
REMARK 999 COVALENTLY 1KAU BOUND TO THE NZ. 1KAU                                
SEQRES   1 A  100  MET GLU LEU THR PRO ARG GLU LYS ASP LYS LEU LEU LEU          
SEQRES   2 A  100  PHE THR ALA ALA LEU VAL ALA GLU ARG ARG LEU ALA ARG          
SEQRES   3 A  100  GLY LEU LYS LEU ASN TYR PRO GLU SER VAL ALA LEU ILE          
SEQRES   4 A  100  SER ALA PHE ILE MET GLU GLY ALA ARG ASP GLY LYS SER          
SEQRES   5 A  100  VAL ALA SER LEU MET GLU GLU GLY ARG HIS VAL LEU THR          
SEQRES   6 A  100  ARG GLU GLN VAL MET GLU GLY VAL PRO GLU MET ILE PRO          
SEQRES   7 A  100  ASP ILE GLN VAL GLU ALA THR PHE PRO ASP GLY SER LYS          
SEQRES   8 A  100  LEU VAL THR VAL HIS ASN PRO ILE ILE                          
SEQRES   1 B  106  MET ILE PRO GLY GLU TYR HIS VAL LYS PRO GLY GLN ILE          
SEQRES   2 B  106  ALA LEU ASN THR GLY ARG ALA THR CYS ARG VAL VAL VAL          
SEQRES   3 B  106  GLU ASN HIS GLY ASP ARG PRO ILE GLN VAL GLY SER HIS          
SEQRES   4 B  106  TYR HIS PHE ALA GLU VAL ASN PRO ALA LEU LYS PHE ASP          
SEQRES   5 B  106  ARG GLN GLN ALA ALA GLY TYR ARG LEU ASN ILE PRO ALA          
SEQRES   6 B  106  GLY THR ALA VAL ARG PHE GLU PRO GLY GLN LYS ARG GLU          
SEQRES   7 B  106  VAL GLU LEU VAL ALA PHE ALA GLY HIS ARG ALA VAL PHE          
SEQRES   8 B  106  GLY PHE ARG GLY GLU VAL MET GLY PRO LEU GLU VAL ASN          
SEQRES   9 B  106  ASP GLU                                                      
SEQRES   1 C  567  MET SER ASN ILE SER ARG GLN ALA TYR ALA ASP MET PHE          
SEQRES   2 C  567  GLY PRO THR VAL GLY ASP LYS VAL ARG LEU ALA ASP THR          
SEQRES   3 C  567  GLU LEU TRP ILE GLU VAL GLU ASP ASP LEU THR THR TYR          
SEQRES   4 C  567  GLY GLU GLU VAL LYS PHE GLY GLY GLY LYS VAL ILE ARG          
SEQRES   5 C  567  ASP GLY MET GLY GLN GLY GLN MET LEU ALA ALA ASP CYS          
SEQRES   6 C  567  VAL ASP LEU VAL LEU THR ASN ALA LEU ILE VAL ASP HIS          
SEQRES   7 C  567  TRP GLY ILE VAL LYS ALA ASP ILE GLY VAL LYS ASP GLY          
SEQRES   8 C  567  ARG ILE PHE ALA ILE GLY LYS ALA GLY ASN PRO ASP ILE          
SEQRES   9 C  567  GLN PRO ASN VAL THR ILE PRO ILE GLY ALA ALA THR GLU          
SEQRES  10 C  567  VAL ILE ALA ALA GLU GLY LYS ILE VAL THR ALA GLY GLY          
SEQRES  11 C  567  ILE ASP THR HIS ILE HIS TRP ILE CYS PRO GLN GLN ALA          
SEQRES  12 C  567  GLU GLU ALA LEU VAL SER GLY VAL THR THR MET VAL GLY          
SEQRES  13 C  567  GLY GLY THR GLY PRO ALA ALA GLY THR HIS ALA THR THR          
SEQRES  14 C  567  CYS THR PRO GLY PRO TRP TYR ILE SER ARG MET LEU GLN          
SEQRES  15 C  567  ALA ALA ASP SER LEU PRO VAL ASN ILE GLY LEU LEU GLY          
SEQRES  16 C  567  LYS GLY ASN VAL SER GLN PRO ASP ALA LEU ARG GLU GLN          
SEQRES  17 C  567  VAL ALA ALA GLY VAL ILE GLY LEU LYS ILE HIS GLU ASP          
SEQRES  18 C  567  TRP GLY ALA THR PRO ALA ALA ILE ASP CYS ALA LEU THR          
SEQRES  19 C  567  VAL ALA ASP GLU MET ASP ILE GLN VAL ALA LEU HIS SER          
SEQRES  20 C  567  ASP THR LEU ASN GLU SER GLY PHE VAL GLU ASP THR LEU          
SEQRES  21 C  567  ALA ALA ILE GLY GLY ARG THR ILE HIS THR PHE HIS THR          
SEQRES  22 C  567  GLU GLY ALA GLY GLY GLY HIS ALA PRO ASP ILE ILE THR          
SEQRES  23 C  567  ALA CYS ALA HIS PRO ASN ILE LEU PRO SER SER THR ASN          
SEQRES  24 C  567  PRO THR LEU PRO TYR THR LEU ASN THR ILE ASP GLU HIS          
SEQRES  25 C  567  LEU ASP MET LEU MET VAL CYS HIS HIS LEU ASP PRO ASP          
SEQRES  26 C  567  ILE ALA GLU ASP VAL ALA PHE ALA GLU SER ARG ILE ARG          
SEQRES  27 C  567  ARG GLU THR ILE ALA ALA GLU ASP VAL LEU HIS ASP LEU          
SEQRES  28 C  567  GLY ALA PHE SER LEU THR SER SER ASP SER GLN ALA MET          
SEQRES  29 C  567  GLY ARG VAL GLY GLU VAL ILE LEU ARG THR TRP GLN VAL          
SEQRES  30 C  567  ALA HIS ARG MET LYS VAL GLN ARG GLY ALA LEU ALA GLU          
SEQRES  31 C  567  GLU THR GLY ASP ASN ASP ASN PHE ARG VAL LYS ARG TYR          
SEQRES  32 C  567  ILE ALA LYS TYR THR ILE ASN PRO ALA LEU THR HIS GLY          
SEQRES  33 C  567  ILE ALA HIS GLU VAL GLY SER ILE GLU VAL GLY LYS LEU          
SEQRES  34 C  567  ALA ASP LEU VAL VAL TRP SER PRO ALA PHE PHE GLY VAL          
SEQRES  35 C  567  LYS PRO ALA THR VAL ILE LYS GLY GLY MET ILE ALA ILE          
SEQRES  36 C  567  ALA PRO MET GLY ASP ILE ASN ALA SER ILE PRO THR PRO          
SEQRES  37 C  567  GLN PRO VAL HIS TYR ARG PRO MET PHE GLY ALA LEU GLY          
SEQRES  38 C  567  SER ALA ARG HIS HIS CYS ARG LEU THR PHE LEU SER GLN          
SEQRES  39 C  567  ALA ALA ALA ALA ASN GLY VAL ALA GLU ARG LEU ASN LEU          
SEQRES  40 C  567  ARG SER ALA ILE ALA VAL VAL LYS GLY CYS ARG THR VAL          
SEQRES  41 C  567  GLN LYS ALA ASP MET VAL HIS ASN SER LEU GLN PRO ASN          
SEQRES  42 C  567  ILE THR VAL ASP ALA GLN THR TYR GLU VAL ARG VAL ASP          
SEQRES  43 C  567  GLY GLU LEU ILE THR SER GLU PRO ALA ASP VAL LEU PRO          
SEQRES  44 C  567  MET ALA GLN ARG TYR PHE LEU PHE                              
FTNOTE   1 CIS PROLINE - PRO C 282                                              
FTNOTE   2 CIS PROLINE - PRO C 303                                              
FTNOTE   3 CIS PROLINE - PRO C 470                                              
FTNOTE   4 LYS C 217 IS COVALENTLY MODIFIED AT NZ BY A CARBOXY GROUP,           
FTNOTE   4  AND COORDINATES NI C 574 THROUGH O1 AND NI C 575 THROUGH            
FTNOTE   4  O2.                                                                 
HET     NI  C 574       1                                                       
HET     NI  C 575       1                                                       
HET    CBX  C 217       3                                                       
HETNAM      NI NICKEL (II) ION                                                  
HETNAM     CBX CARBOXY GROUP                                                    
FORMUL   4   NI    2(NI 2+)                                                     
FORMUL   6  CBX    C H2 O2                                                      
FORMUL   7  HOH   *177(H2 O1)                                                   
HELIX    1   1 PRO A    5  ARG A   26  1                                  22    
HELIX    2   2 TYR A   32  ASP A   49  1                                  18    
HELIX    3   3 VAL A   53  HIS A   62  1                                  10    
HELIX    4   4 ARG A   66  GLN A   68  5                                   3    
HELIX    5   5 VAL A   73  MET A   76  1                                   4    
HELIX    6   6 PHE B   42  GLU B   44  5                                   3    
HELIX    7   7 ARG C    6  PHE C   13  1                                   8    
HELIX    8   8 ALA C   62  ASP C   64  5                                   3    
HELIX    9   9 PRO C  140  SER C  149  5                                  10    
HELIX   10  10 ALA C  163  ALA C  167  1                                   5    
HELIX   11  11 GLY C  173  SER C  186  1                                  14    
HELIX   12  12 PRO C  202  ALA C  211  1                                  10    
HELIX   13  13 GLU C  220  TRP C  222  5                                   3    
HELIX   14  14 PRO C  226  MET C  239  1                                  14    
HELIX   15  15 VAL C  256  ILE C  263  1                                   8    
HELIX   16  16 ILE C  284  ALA C  289  5                                   6    
HELIX   17  17 THR C  308  VAL C  318  1                                  11    
HELIX   18  18 ALA C  327  ARG C  336  1                                  10    
HELIX   19  19 ARG C  339  LEU C  351  1                                  13    
HELIX   20  20 VAL C  370  ARG C  385  1                                  16    
HELIX   21  21 ASN C  397  TYR C  407  1                                  11    
HELIX   22  22 ILE C  409  THR C  414  1                                   6    
HELIX   23  23 PRO C  437  PHE C  439  5                                   3    
HELIX   24  24 PHE C  477  ALA C  479  5                                   3    
HELIX   25  25 GLY C  481  CYS C  487  1                                   7    
HELIX   26  26 GLN C  494  ALA C  498  1                                   5    
HELIX   27  27 VAL C  501  ARG C  504  1                                   4    
HELIX   28  28 LYS C  522  ASP C  524  5                                   3    
SHEET    1   A 2 ASP A  79  PHE A  86  0                                        
SHEET    2   A 2 GLY A  89  HIS A  96 -1  N  VAL A  95   O  ILE A  80           
SHEET    1   B 2 GLN B  12  ALA B  14  0                                        
SHEET    2   B 2 ASN C   3  SER C   5 -1  N  ILE C   4   O  ILE B  13           
SHEET    1   C 3 THR B  21  GLU B  27  0                                        
SHEET    2   C 3 LYS B  76  ALA B  83 -1  N  LEU B  81   O  CYS B  22           
SHEET    3   C 3 TYR B  59  LEU B  61 -1  N  ARG B  60   O  VAL B  82           
SHEET    1   D 2 ILE B  34  GLY B  37  0                                        
SHEET    2   D 2 ALA B  68  PHE B  71 -1  N  PHE B  71   O  ILE B  34           
SHEET    1   E 2 LYS C  20  ARG C  22  0                                        
SHEET    2   E 2 TRP C  29  GLU C  31 -1  N  ILE C  30   O  VAL C  21           
SHEET    1   F 4 GLU C 117  ALA C 120  0                                        
SHEET    2   F 4 LEU C  68  THR C  71  1  N  VAL C  69   O  GLU C 117           
SHEET    3   F 4 ASP C  85  LYS C  89 -1  N  VAL C  88   O  LEU C  68           
SHEET    4   F 4 ARG C  92  GLY C  97 -1  N  GLY C  97   O  ASP C  85           
SHEET    1   G 2 ALA C  73  ASP C  77  0                                        
SHEET    2   G 2 GLY C  80  ALA C  84 -1  N  ALA C  84   O  ALA C  73           
SHEET    1   H 5 LYS C 124  ALA C 128  0                                        
SHEET    2   H 5 LEU C 432  SER C 436 -1  N  TRP C 435   O  ILE C 125           
SHEET    3   H 5 THR C 446  LYS C 449 -1  N  ILE C 448   O  LEU C 432           
SHEET    4   H 5 MET C 452  MET C 458 -1  N  ILE C 455   O  VAL C 447           
SHEET    5   H 5 HIS C 472  PRO C 475 -1  N  ARG C 474   O  ALA C 456           
SHEET    1   I 3 ASN C 190  LEU C 193  0                                        
SHEET    2   I 3 VAL C 151  GLY C 156  1  N  MET C 154   O  ASN C 190           
SHEET    3   I 3 GLY C 130  ASP C 132  1  N  GLY C 130   O  THR C 152           
SHEET    1   J 3 LEU C 194  LYS C 196  0                                        
SHEET    2   J 3 GLY C 215  HIS C 219  1  N  GLY C 215   O  GLY C 195           
SHEET    3   J 3 GLN C 242  HIS C 246  1  N  GLN C 242   O  LEU C 216           
SHEET    1   K 2 ILE C 268  THR C 270  0                                        
SHEET    2   K 2 ILE C 293  PRO C 295  1  N  LEU C 294   O  ILE C 268           
SHEET    1   L 2 SER C 296  THR C 298  0                                        
SHEET    2   L 2 LEU C 356  SER C 358  1  N  LEU C 356   O  SER C 297           
SHEET    1   M 2 LEU C 489  LEU C 492  0                                        
SHEET    2   M 2 ALA C 510  VAL C 513  1  N  ALA C 510   O  THR C 490           
SHEET    1   N 2 ILE C 534  VAL C 536  0                                        
SHEET    2   N 2 VAL C 543  VAL C 545 -1  N  ARG C 544   O  THR C 535           
CISPEP   1 ALA C  281    PRO C  282          0        -0.11                     
CISPEP   2 LEU C  302    PRO C  303          0        -0.65                     
CISPEP   3 GLN C  469    PRO C  470          0        -0.37                     
SITE     1 NI1 10 HIS C 134  HIS C 136  LYS C 217  HIS C 246                    
SITE     2 NI1 10 HIS C 272  ASP C 360   NI C 574   NI C 575                    
SITE     3 NI1 10 CBX C 217  HOH     1                                          
SITE     1 AC2  2 HIS C 219  HIS C 320                                          
CRYST1  170.800  170.800  170.800  90.00  90.00  90.00 I 21 3       24          
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      0.005855  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.005855  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005855        0.00000