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Database: PDB
Entry: 3RN6
LinkDB: 3RN6
Original site: 3RN6 
HEADER    HYDROLASE                               22-APR-11   3RN6              
TITLE     CRYSTAL STRUCTURE OF CYTOSINE DEAMINASE FROM ESCHERICHIA COLI         
TITLE    2 COMPLEXED WITH ZINC AND ISOGUANINE                                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CYTOSINE DEAMINASE;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: CYTOSINE AMINOHYDROLASE;                                    
COMPND   5 EC: 3.5.4.1;                                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 GENE: CODA, B0337, JW0328;                                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    AMIDOHYDROLASE FOLD, CYTOSINE DEAMINASE, ISOGUANINE, HYDROLASE        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.A.FEDOROV,E.V.FEDOROV,D.S.HITCHCOCK,F.M.RAUSHEL,S.C.ALMO            
REVDAT   2   13-SEP-23 3RN6    1       REMARK LINK                              
REVDAT   1   24-AUG-11 3RN6    0                                                
JRNL        AUTH   D.S.HITCHCOCK,A.A.FEDOROV,E.V.FEDOROV,L.J.DANGOTT,S.C.ALMO,  
JRNL        AUTH 2 F.M.RAUSHEL                                                  
JRNL        TITL   RESCUE OF THE ORPHAN ENZYME ISOGUANINE DEAMINASE.            
JRNL        REF    BIOCHEMISTRY                  V.  50  5555 2011              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   21604715                                                     
JRNL        DOI    10.1021/BI200680Y                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.26 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.6.4_486)                    
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.26                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 39.31                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 92.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 36490                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.209                           
REMARK   3   R VALUE            (WORKING SET) : 0.207                           
REMARK   3   FREE R VALUE                     : 0.243                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1825                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 39.3134 -  5.2973    1.00     3020   146  0.1744 0.2132        
REMARK   3     2  5.2973 -  4.2062    1.00     2905   163  0.1389 0.1726        
REMARK   3     3  4.2062 -  3.6749    1.00     2864   177  0.1588 0.2017        
REMARK   3     4  3.6749 -  3.3391    1.00     2870   157  0.1797 0.2464        
REMARK   3     5  3.3391 -  3.0999    1.00     2885   139  0.2172 0.2363        
REMARK   3     6  3.0999 -  2.9172    1.00     2880   136  0.2338 0.2607        
REMARK   3     7  2.9172 -  2.7711    1.00     2831   166  0.2601 0.2786        
REMARK   3     8  2.7711 -  2.6505    1.00     2882   157  0.2801 0.3036        
REMARK   3     9  2.6505 -  2.5485    1.00     2822   154  0.3061 0.3549        
REMARK   3    10  2.5485 -  2.4606    0.97     2761   146  0.3182 0.3379        
REMARK   3    11  2.4606 -  2.3837    0.89     2548   128  0.3313 0.3616        
REMARK   3    12  2.3837 -  2.3155    0.73     2093    93  0.3411 0.3878        
REMARK   3    13  2.3155 -  2.2546    0.46     1304    63  0.3639 0.3986        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.00                                          
REMARK   3   SHRINKAGE RADIUS   : 0.72                                          
REMARK   3   K_SOL              : 0.38                                          
REMARK   3   B_SOL              : 37.79                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.350            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.780           
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) : 3.63440                                              
REMARK   3    B22 (A**2) : 3.63440                                              
REMARK   3    B33 (A**2) : -7.26880                                             
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.008           3424                                  
REMARK   3   ANGLE     :  1.091           4656                                  
REMARK   3   CHIRALITY :  0.066            520                                  
REMARK   3   PLANARITY :  0.005            605                                  
REMARK   3   DIHEDRAL  : 14.099           1256                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3RN6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-APR-11.                  
REMARK 100 THE DEPOSITION ID IS D_1000065137.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-APR-11                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X4A                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97915                            
REMARK 200  MONOCHROMATOR                  : SI 111 CHANNEL                     
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 36490                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.255                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 39.307                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 92.8                               
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: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: BALBES                                                
REMARK 200 STARTING MODEL: 3O7U                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 71.85                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.37                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 35% PENTAERYTHRITOL PROPOXYLATE, 0.05M   
REMARK 280  HEPES, POTASSIUM CHLORIDE, PH 7.5, VAPOR DIFFUSION, HANGING DROP,   
REMARK 280  TEMPERATURE 293.0K                                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2                            
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-Z                                              
REMARK 290       7555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       8555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       9555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290      10555   Y+2/3,X+1/3,-Z+1/3                                      
REMARK 290      11555   X-Y+2/3,-Y+1/3,-Z+1/3                                   
REMARK 290      12555   -X+2/3,-X+Y+1/3,-Z+1/3                                  
REMARK 290      13555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290      14555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290      15555   -X+Y+1/3,-X+2/3,Z+2/3                                   
REMARK 290      16555   Y+1/3,X+2/3,-Z+2/3                                      
REMARK 290      17555   X-Y+1/3,-Y+2/3,-Z+2/3                                   
REMARK 290      18555   -X+1/3,-X+Y+2/3,-Z+2/3                                  
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000       73.59050            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       42.48749            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       66.58233            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000       73.59050            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       42.48749            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       66.58233            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000       73.59050            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       42.48749            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       66.58233            
REMARK 290   SMTRY1  10 -0.500000  0.866025  0.000000       73.59050            
REMARK 290   SMTRY2  10  0.866025  0.500000  0.000000       42.48749            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       66.58233            
REMARK 290   SMTRY1  11  1.000000  0.000000  0.000000       73.59050            
REMARK 290   SMTRY2  11  0.000000 -1.000000  0.000000       42.48749            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       66.58233            
REMARK 290   SMTRY1  12 -0.500000 -0.866025  0.000000       73.59050            
REMARK 290   SMTRY2  12 -0.866025  0.500000  0.000000       42.48749            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       66.58233            
REMARK 290   SMTRY1  13  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000       84.97499            
REMARK 290   SMTRY3  13  0.000000  0.000000  1.000000      133.16467            
REMARK 290   SMTRY1  14 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  14  0.866025 -0.500000  0.000000       84.97499            
REMARK 290   SMTRY3  14  0.000000  0.000000  1.000000      133.16467            
REMARK 290   SMTRY1  15 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  15 -0.866025 -0.500000  0.000000       84.97499            
REMARK 290   SMTRY3  15  0.000000  0.000000  1.000000      133.16467            
REMARK 290   SMTRY1  16 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  16  0.866025  0.500000  0.000000       84.97499            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000      133.16467            
REMARK 290   SMTRY1  17  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  17  0.000000 -1.000000  0.000000       84.97499            
REMARK 290   SMTRY3  17  0.000000  0.000000 -1.000000      133.16467            
REMARK 290   SMTRY1  18 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  18 -0.866025  0.500000  0.000000       84.97499            
REMARK 290   SMTRY3  18  0.000000  0.000000 -1.000000      133.16467            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375 ZN    ZN A 429  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     0                                                      
REMARK 465     SER A     1                                                      
REMARK 465     ASN A     2                                                      
REMARK 465     ASN A     3                                                      
REMARK 465     ARG A   426                                                      
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    ASP A  26       31.70     72.82                                   
REMARK 500    ASN A  44      -15.35     81.28                                   
REMARK 500    ASN A  76       89.53    -69.68                                   
REMARK 500    ALA A 144      -32.51    -39.26                                   
REMARK 500    ILE A 183       66.76   -152.50                                   
REMARK 500    ILE A 218      140.82   -174.55                                   
REMARK 500    HIS A 246      -74.68     77.22                                   
REMARK 500    THR A 247       43.22     37.02                                   
REMARK 500    THR A 288      -96.59   -100.22                                   
REMARK 500    ASP A 313      -62.24     69.11                                   
REMARK 500    LEU A 322     -168.38   -124.61                                   
REMARK 500    THR A 354      -95.35   -124.14                                   
REMARK 500    LEU A 416     -123.50    -87.00                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 428  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  61   NE2                                                    
REMARK 620 2 HIS A  63   NE2 118.8                                              
REMARK 620 3 HIS A 214   NE2  98.6  98.9                                        
REMARK 620 4 HOH A 431   O   118.0 114.5 102.3                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 429  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  97   NE2                                                    
REMARK 620 2 GLU A 138   OE2 116.8                                              
REMARK 620 3 GLU A 138   OE1  92.8  54.1                                        
REMARK 620 N                    1     2                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PXN A 427                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 428                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 429                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IGA A 430                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3O7U   RELATED DB: PDB                                   
REMARK 900 THE SAME PROTEIN COMPLEXED WITH PHOSPHO-CYTOSINE                     
DBREF  3RN6 A    0   426  UNP    P25524   CODA_ECOLI       1    427             
SEQRES   1 A  427  MET SER ASN ASN ALA LEU GLN THR ILE ILE ASN ALA ARG          
SEQRES   2 A  427  LEU PRO GLY GLU GLU GLY LEU TRP GLN ILE HIS LEU GLN          
SEQRES   3 A  427  ASP GLY LYS ILE SER ALA ILE ASP ALA GLN SER GLY VAL          
SEQRES   4 A  427  MET PRO ILE THR GLU ASN SER LEU ASP ALA GLU GLN GLY          
SEQRES   5 A  427  LEU VAL ILE PRO PRO PHE VAL GLU PRO HIS ILE HIS LEU          
SEQRES   6 A  427  ASP THR THR GLN THR ALA GLY GLN PRO ASN TRP ASN GLN          
SEQRES   7 A  427  SER GLY THR LEU PHE GLU GLY ILE GLU ARG TRP ALA GLU          
SEQRES   8 A  427  ARG LYS ALA LEU LEU THR HIS ASP ASP VAL LYS GLN ARG          
SEQRES   9 A  427  ALA TRP GLN THR LEU LYS TRP GLN ILE ALA ASN GLY ILE          
SEQRES  10 A  427  GLN HIS VAL ARG THR HIS VAL ASP VAL SER ASP ALA THR          
SEQRES  11 A  427  LEU THR ALA LEU LYS ALA MET LEU GLU VAL LYS GLN GLU          
SEQRES  12 A  427  VAL ALA PRO TRP ILE ASP LEU GLN ILE VAL ALA PHE PRO          
SEQRES  13 A  427  GLN GLU GLY ILE LEU SER TYR PRO ASN GLY GLU ALA LEU          
SEQRES  14 A  427  LEU GLU GLU ALA LEU ARG LEU GLY ALA ASP VAL VAL GLY          
SEQRES  15 A  427  ALA ILE PRO HIS PHE GLU PHE THR ARG GLU TYR GLY VAL          
SEQRES  16 A  427  GLU SER LEU HIS LYS THR PHE ALA LEU ALA GLN LYS TYR          
SEQRES  17 A  427  ASP ARG LEU ILE ASP VAL HIS CYS ASP GLU ILE ASP ASP          
SEQRES  18 A  427  GLU GLN SER ARG PHE VAL GLU THR VAL ALA ALA LEU ALA          
SEQRES  19 A  427  HIS HIS GLU GLY MET GLY ALA ARG VAL THR ALA SER HIS          
SEQRES  20 A  427  THR THR ALA MET HIS SER TYR ASN GLY ALA TYR THR SER          
SEQRES  21 A  427  ARG LEU PHE ARG LEU LEU LYS MET SER GLY ILE ASN PHE          
SEQRES  22 A  427  VAL ALA ASN PRO LEU VAL ASN ILE HIS LEU GLN GLY ARG          
SEQRES  23 A  427  PHE ASP THR TYR PRO LYS ARG ARG GLY ILE THR ARG VAL          
SEQRES  24 A  427  LYS GLU MET LEU GLU SER GLY ILE ASN VAL CYS PHE GLY          
SEQRES  25 A  427  HIS ASP ASP VAL PHE ASP PRO TRP TYR PRO LEU GLY THR          
SEQRES  26 A  427  ALA ASN MET LEU GLN VAL LEU HIS MET GLY LEU HIS VAL          
SEQRES  27 A  427  CYS GLN LEU MET GLY TYR GLY GLN ILE ASN ASP GLY LEU          
SEQRES  28 A  427  ASN LEU ILE THR HIS HIS SER ALA ARG THR LEU ASN LEU          
SEQRES  29 A  427  GLN ASP TYR GLY ILE ALA ALA GLY ASN SER ALA ASN LEU          
SEQRES  30 A  427  ILE ILE LEU PRO ALA GLU ASN GLY PHE ASP ALA LEU ARG          
SEQRES  31 A  427  ARG GLN VAL PRO VAL ARG TYR SER VAL ARG GLY GLY LYS          
SEQRES  32 A  427  VAL ILE ALA SER THR GLN PRO ALA GLN THR THR VAL TYR          
SEQRES  33 A  427  LEU GLU GLN PRO GLU ALA ILE ASP TYR LYS ARG                  
HET    PXN  A 427      25                                                       
HET     ZN  A 428       1                                                       
HET     ZN  A 429       1                                                       
HET    IGA  A 430      11                                                       
HETNAM     PXN (2S)-1-[3-{[(2R)-2-HYDROXYPROPYL]OXY}-2,2-BIS({[(2R)-2-          
HETNAM   2 PXN  HYDROXYPROPYL]OXY}METHYL)PROPOXY]PROPAN-2-OL                    
HETNAM      ZN ZINC ION                                                         
HETNAM     IGA 6-AMINO-3,7-DIHYDRO-2H-PURIN-2-ONE                               
HETSYN     PXN PENTAERYTHRITOL PROPOXYLATE (5/4 PO/OH)                          
HETSYN     IGA ISOGUANINE                                                       
FORMUL   2  PXN    C17 H36 O8                                                   
FORMUL   3   ZN    2(ZN 2+)                                                     
FORMUL   5  IGA    C5 H5 N5 O                                                   
FORMUL   6  HOH   *78(H2 O)                                                     
HELIX    1   1 THR A   80  ALA A   93  1                                  14    
HELIX    2   2 THR A   96  ASN A  114  1                                  19    
HELIX    3   3 LEU A  130  ALA A  144  1                                  15    
HELIX    4   4 ASN A  164  GLY A  176  1                                  13    
HELIX    5   5 ILE A  183  GLU A  187  5                                   5    
HELIX    6   6 THR A  189  TYR A  207  1                                  19    
HELIX    7   7 PHE A  225  GLU A  236  1                                  12    
HELIX    8   8 MET A  238  ALA A  240  5                                   3    
HELIX    9   9 THR A  248  TYR A  253  5                                   6    
HELIX   10  10 ASN A  254  GLY A  269  1                                  16    
HELIX   11  11 ASN A  275  GLN A  283  1                                   9    
HELIX   12  12 ARG A  297  GLY A  305  1                                   9    
HELIX   13  13 ASN A  326  CYS A  338  1                                  13    
HELIX   14  14 GLY A  342  ASP A  348  1                                   7    
HELIX   15  15 GLY A  349  ILE A  353  5                                   5    
HELIX   16  16 THR A  354  ASN A  362  1                                   9    
HELIX   17  17 ASN A  383  GLN A  391  1                                   9    
SHEET    1   A 7 ILE A  29  ALA A  34  0                                        
SHEET    2   A 7 TRP A  20  LEU A  24 -1  N  HIS A  23   O  ALA A  31           
SHEET    3   A 7 THR A   7  ARG A  12 -1  N  ILE A   8   O  ILE A  22           
SHEET    4   A 7 SER A  45  ILE A  54  1  O  ALA A  48   N  ILE A   9           
SHEET    5   A 7 LEU A 376  LEU A 379 -1  O  LEU A 379   N  LEU A  52           
SHEET    6   A 7 TYR A 396  ARG A 399 -1  O  VAL A 398   N  LEU A 376           
SHEET    7   A 7 LYS A 402  SER A 406 -1  O  LYS A 402   N  ARG A 399           
SHEET    1   B 8 PHE A  57  ILE A  62  0                                        
SHEET    2   B 8 ILE A 116  ASP A 124  1  O  HIS A 122   N  ILE A  62           
SHEET    3   B 8 ASP A 148  PHE A 154  1  O  GLN A 150   N  VAL A 119           
SHEET    4   B 8 VAL A 179  ALA A 182  1  O  VAL A 179   N  ALA A 153           
SHEET    5   B 8 LEU A 210  CYS A 215  1  O  ASP A 212   N  VAL A 180           
SHEET    6   B 8 VAL A 242  HIS A 246  1  O  SER A 245   N  VAL A 213           
SHEET    7   B 8 ASN A 271  ALA A 274  1  O  ASN A 271   N  ALA A 244           
SHEET    8   B 8 VAL A 308  PHE A 310  1  O  CYS A 309   N  ALA A 274           
SHEET    1   C 2 THR A 412  TYR A 415  0                                        
SHEET    2   C 2 PRO A 419  ILE A 422 -1  O  GLU A 420   N  VAL A 414           
LINK         NE2 HIS A  61                ZN    ZN A 428     1555   1555  2.05  
LINK         NE2 HIS A  63                ZN    ZN A 428     1555   1555  2.13  
LINK         NE2 HIS A  97                ZN    ZN A 429     1555   1555  2.13  
LINK         OE2 GLU A 138                ZN    ZN A 429     1555   1555  2.39  
LINK         OE1 GLU A 138                ZN    ZN A 429     1555   1555  2.45  
LINK         NE2 HIS A 214                ZN    ZN A 428     1555   1555  2.19  
LINK        ZN    ZN A 428                 O   HOH A 431     1555   1555  2.13  
CISPEP   1 GLN A   72    PRO A   73          0        -4.48                     
CISPEP   2 TYR A  289    PRO A  290          0         0.53                     
SITE     1 AC1  5 GLN A 102  TRP A 105  LYS A 109  GLU A 417                    
SITE     2 AC1  5 GLU A 420                                                     
SITE     1 AC2  6 HIS A  61  HIS A  63  HIS A 214  HIS A 246                    
SITE     2 AC2  6 ASP A 313  HOH A 431                                          
SITE     1 AC3  2 HIS A  97  GLU A 138                                          
SITE     1 AC4  8 HIS A  63  LEU A  81  GLN A 156  GLU A 217                    
SITE     2 AC4  8 ASP A 313  ASP A 314  TRP A 319  HOH A 431                    
CRYST1  147.181  147.181  199.747  90.00  90.00 120.00 H 3 2        18          
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      0.006794  0.003923  0.000000        0.00000                         
SCALE2      0.000000  0.007845  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005006        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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