PDB Short entry for 3V9Z
HEADER    HYDROLASE/DNA                           28-DEC-11   3V9Z              
TITLE     CRYSTAL STRUCTURE OF RNASE T IN COMPLEX WITH A PRODUCT SSDNA (ACC)    
TITLE    2 WITH ONE MG IN THE ACTIVE SITE                                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEASE T;                                            
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: EXORIBONUCLEASE T, RNASE T;                                 
COMPND   5 EC: 3.1.13.-;                                                        
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: DNA (5'-D(*TP*TP*AP*CP*AP*CP*C)-3');                       
COMPND   9 CHAIN: C, D;                                                         
COMPND  10 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 83333;                                               
SOURCE   4 STRAIN: K12;                                                         
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21-CODONPLUS(DE3)-RIPL;                  
SOURCE   8 MOL_ID: 2;                                                           
SOURCE   9 SYNTHETIC: YES;                                                      
SOURCE  10 OTHER_DETAILS: SYNTHETIC CONSTRUCT                                   
KEYWDS    DEDD NUCLEASES FAMILY, EXO-NUCLEASE, HYDROLASE-DNA COMPLEX            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Y.-Y.HSIAO,H.S.YUAN                                                   
REVDAT   3   08-NOV-23 3V9Z    1       REMARK SEQADV LINK                       
REVDAT   2   26-JUN-13 3V9Z    1       JRNL                                     
REVDAT   1   11-JUL-12 3V9Z    0                                                
JRNL        AUTH   Y.-Y.HSIAO,Y.DUH,Y.P.CHEN,Y.T.WANG,H.S.YUAN                  
JRNL        TITL   HOW AN EXONUCLEASE DECIDES WHERE TO STOP IN TRIMMING OF      
JRNL        TITL 2 NUCLEIC ACIDS: CRYSTAL STRUCTURES OF RNASE T-PRODUCT         
JRNL        TITL 3 COMPLEXES                                                    
JRNL        REF    NUCLEIC ACIDS RES.            V.  40  8144 2012              
JRNL        REFN                   ISSN 0305-1048                               
JRNL        PMID   22718982                                                     
JRNL        DOI    10.1093/NAR/GKS548                                           
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.7.1_743)                    
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) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 28.52                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.330                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 43648                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.213                           
REMARK   3   R VALUE            (WORKING SET) : 0.211                           
REMARK   3   FREE R VALUE                     : 0.248                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.040                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2201                            
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 28.5187 -  4.5301    0.96     2777   158  0.2111 0.2050        
REMARK   3     2  4.5301 -  3.5979    0.96     2634   143  0.1792 0.2280        
REMARK   3     3  3.5979 -  3.1438    0.98     2693   132  0.1944 0.2335        
REMARK   3     4  3.1438 -  2.8566    0.99     2703   153  0.2065 0.2203        
REMARK   3     5  2.8566 -  2.6520    0.99     2674   141  0.2149 0.2419        
REMARK   3     6  2.6520 -  2.4958    0.99     2700   126  0.2150 0.2838        
REMARK   3     7  2.4958 -  2.3708    1.00     2673   144  0.1927 0.2392        
REMARK   3     8  2.3708 -  2.2677    0.95     2538   152  0.2056 0.2363        
REMARK   3     9  2.2677 -  2.1804    0.83     2206   130  0.2542 0.3051        
REMARK   3    10  2.1804 -  2.1052    1.00     2659   137  0.1982 0.2355        
REMARK   3    11  2.1052 -  2.0394    1.00     2642   146  0.1889 0.2402        
REMARK   3    12  2.0394 -  1.9811    1.00     2678   144  0.1873 0.2106        
REMARK   3    13  1.9811 -  1.9290    0.95     2545   113  0.2303 0.3127        
REMARK   3    14  1.9290 -  1.8819    0.77     2020   101  0.3680 0.4615        
REMARK   3    15  1.8819 -  1.8391    1.00     2652   147  0.2377 0.2801        
REMARK   3    16  1.8391 -  1.8000    1.00     2653   134  0.2417 0.3105        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.20                                          
REMARK   3   SHRINKAGE RADIUS   : 0.95                                          
REMARK   3   K_SOL              : 0.36                                          
REMARK   3   B_SOL              : 33.64                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.430            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 28.070           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 17.71                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 1.84960                                              
REMARK   3    B22 (A**2) : -1.83870                                             
REMARK   3    B33 (A**2) : -0.01090                                             
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      :  0.006           3424                                  
REMARK   3   ANGLE     :  1.000           4666                                  
REMARK   3   CHIRALITY :  0.075            520                                  
REMARK   3   PLANARITY :  0.004            594                                  
REMARK   3   DIHEDRAL  : 13.587           1218                                  
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 3V9Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 17-JAN-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000069781.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-NOV-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 4.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SPRING-8                           
REMARK 200  BEAMLINE                       : BL44XU                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9                                
REMARK 200  MONOCHROMATOR                  : SAGITALLY FOCUSED SI(III)          
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : RAYONIX MX225HE                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 44147                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.4                               
REMARK 200  DATA REDUNDANCY                : 5.400                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.09100                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 31.9200                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.83                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.80                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.36200                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 8.600                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: 3NGY                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.09                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.16                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1M SODIUM ACETATE TRIHYDRATE,          
REMARK 280  10%(W/V) POLYETHYLENE GLYCOL 1000, PH 4.5, VAPOR DIFFUSION,         
REMARK 280  HANGING DROP, TEMPERATURE 298K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       4555   X+1/2,-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        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       48.21100            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       53.04600            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       48.21100            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       53.04600            
REMARK 290   SMTRY3   4  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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 5610 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18060 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -50.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                            
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH B 533  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   -19                                                      
REMARK 465     GLY A   -18                                                      
REMARK 465     SER A   -17                                                      
REMARK 465     SER A   -16                                                      
REMARK 465     HIS A   -15                                                      
REMARK 465     HIS A   -14                                                      
REMARK 465     HIS A   -13                                                      
REMARK 465     HIS A   -12                                                      
REMARK 465     HIS A   -11                                                      
REMARK 465     HIS A   -10                                                      
REMARK 465     SER A    -9                                                      
REMARK 465     SER A    -8                                                      
REMARK 465     GLY A    -7                                                      
REMARK 465     LEU A    -6                                                      
REMARK 465     VAL A    -5                                                      
REMARK 465     PRO A    -4                                                      
REMARK 465     ARG A    -3                                                      
REMARK 465     GLY A    -2                                                      
REMARK 465     SER A    -1                                                      
REMARK 465     HIS A     0                                                      
REMARK 465     MET A     1                                                      
REMARK 465     SER A     2                                                      
REMARK 465     ASP A     3                                                      
REMARK 465     ASN A     4                                                      
REMARK 465     ALA A     5                                                      
REMARK 465     GLN A     6                                                      
REMARK 465     MET B   -19                                                      
REMARK 465     GLY B   -18                                                      
REMARK 465     SER B   -17                                                      
REMARK 465     SER B   -16                                                      
REMARK 465     HIS B   -15                                                      
REMARK 465     HIS B   -14                                                      
REMARK 465     HIS B   -13                                                      
REMARK 465     HIS B   -12                                                      
REMARK 465     HIS B   -11                                                      
REMARK 465     HIS B   -10                                                      
REMARK 465     SER B    -9                                                      
REMARK 465     SER B    -8                                                      
REMARK 465     GLY B    -7                                                      
REMARK 465     LEU B    -6                                                      
REMARK 465     VAL B    -5                                                      
REMARK 465     PRO B    -4                                                      
REMARK 465     ARG B    -3                                                      
REMARK 465     GLY B    -2                                                      
REMARK 465     SER B    -1                                                      
REMARK 465     HIS B     0                                                      
REMARK 465     MET B     1                                                      
REMARK 465     SER B     2                                                      
REMARK 465     ASP B     3                                                      
REMARK 465     ASN B     4                                                      
REMARK 465     ALA B     5                                                      
REMARK 465     GLN B     6                                                      
REMARK 465      DT C     1                                                      
REMARK 465      DT C     2                                                      
REMARK 465      DA C     3                                                      
REMARK 465      DC C     4                                                      
REMARK 465      DT D     1                                                      
REMARK 465      DT D     2                                                      
REMARK 465      DA D     3                                                      
REMARK 465      DC D     4                                                      
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   O    HOH B   694     O    HOH B   706              1.86            
REMARK 500   O    HOH B   689     O    HOH B   697              1.92            
REMARK 500   O    HOH B   447     O    HOH B   709              1.95            
REMARK 500   O    HOH B   690     O    HOH B   715              1.96            
REMARK 500   O    HOH A   604     O    HOH A   642              1.96            
REMARK 500   O    HOH D   111     O    HOH D   112              1.98            
REMARK 500   O    HOH B   658     O    HOH B   692              1.98            
REMARK 500   O    HOH B   518     O    HOH B   623              1.99            
REMARK 500   O    HOH B   594     O    HOH B   646              2.01            
REMARK 500   O    HOH A   588     O    HOH A   682              2.02            
REMARK 500   O    HOH A   679     O    HOH A   683              2.04            
REMARK 500   O    HOH A   538     O    HOH B   666              2.04            
REMARK 500   O    HOH A   473     O    HOH A   629              2.05            
REMARK 500   O    HOH B   496     O    HOH B   711              2.05            
REMARK 500   O    HOH A   655     O    HOH A   684              2.07            
REMARK 500   O    HOH B   692     O    HOH B   708              2.07            
REMARK 500   O    HOH A   464     O    HOH A   633              2.08            
REMARK 500   O    HOH A   549     O    HOH B   401              2.09            
REMARK 500   O    HOH B   649     O    HOH B   702              2.09            
REMARK 500   O    HOH A   588     O    HOH A   595              2.09            
REMARK 500   O    HOH D   106     O    HOH D   110              2.09            
REMARK 500   O    HOH B   567     O    HOH B   589              2.11            
REMARK 500   O    HOH B   459     O    HOH B   646              2.11            
REMARK 500   OE1  GLN A   169     O    HOH A   577              2.12            
REMARK 500   O    HOH A   613     O    HOH A   665              2.13            
REMARK 500   O    HOH B   561     O    HOH B   703              2.14            
REMARK 500   O    HOH B   618     O    HOH B   662              2.15            
REMARK 500   NE   ARG A   114     O    HOH A   506              2.18            
REMARK 500   O    HOH B   656     O    HOH B   686              2.19            
REMARK 500   SD   MET B   130     O    HOH B   698              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   666     O    HOH B   631     4455     1.95            
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     DC C   6   O4' -  C1' -  N1  ANGL. DEV. =   3.8 DEGREES          
REMARK 500     DC C   7   O4' -  C1' -  N1  ANGL. DEV. =   3.0 DEGREES          
REMARK 500     DC D   6   O4' -  C1' -  N1  ANGL. DEV. =   4.8 DEGREES          
REMARK 500     DC D   7   O4' -  C1' -  N1  ANGL. DEV. =   2.3 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    ASP A  55      -86.20   -115.01                                   
REMARK 500    PHE A 146      -19.05   -143.81                                   
REMARK 500    ASP B  55      -87.29   -115.80                                   
REMARK 500    PHE B 146      -22.89   -143.55                                   
REMARK 500    GLU B 214       77.28   -117.05                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 301  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  23   OD1                                                    
REMARK 620 2 HOH A 415   O    82.0                                              
REMARK 620 3 HOH A 425   O    75.0  75.1                                        
REMARK 620 4 HOH A 434   O    92.6  88.2 160.3                                  
REMARK 620 5  DC C   6   O3' 159.6 102.1  86.6 107.5                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 301  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B  23   OD1                                                    
REMARK 620 2 HOH B 419   O    80.2                                              
REMARK 620 3 HOH B 430   O    78.5  79.4                                        
REMARK 620 4 HOH B 465   O    91.2  81.4 159.5                                  
REMARK 620 5  DC D   6   O3' 166.4 104.3  89.6 102.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 301                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO A 302                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 301                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3NGY   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NGZ   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NH0   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NH1   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NH2   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3V9S   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3V9U   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3V9W   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3V9X   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3VA0   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3VA3   RELATED DB: PDB                                   
DBREF  3V9Z A    1   215  UNP    P30014   RNT_ECOLI        1    215             
DBREF  3V9Z B    1   215  UNP    P30014   RNT_ECOLI        1    215             
DBREF  3V9Z C    1     7  PDB    3V9Z     3V9Z             1      7             
DBREF  3V9Z D    1     7  PDB    3V9Z     3V9Z             1      7             
SEQADV 3V9Z MET A  -19  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z GLY A  -18  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER A  -17  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER A  -16  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS A  -15  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS A  -14  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS A  -13  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS A  -12  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS A  -11  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS A  -10  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER A   -9  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER A   -8  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z GLY A   -7  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z LEU A   -6  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z VAL A   -5  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z PRO A   -4  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z ARG A   -3  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z GLY A   -2  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER A   -1  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS A    0  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z MET B  -19  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z GLY B  -18  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER B  -17  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER B  -16  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS B  -15  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS B  -14  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS B  -13  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS B  -12  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS B  -11  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS B  -10  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER B   -9  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER B   -8  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z GLY B   -7  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z LEU B   -6  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z VAL B   -5  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z PRO B   -4  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z ARG B   -3  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z GLY B   -2  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z SER B   -1  UNP  P30014              EXPRESSION TAG                 
SEQADV 3V9Z HIS B    0  UNP  P30014              EXPRESSION TAG                 
SEQRES   1 A  235  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 A  235  LEU VAL PRO ARG GLY SER HIS MET SER ASP ASN ALA GLN          
SEQRES   3 A  235  LEU THR GLY LEU CYS ASP ARG PHE ARG GLY PHE TYR PRO          
SEQRES   4 A  235  VAL VAL ILE ASP VAL GLU THR ALA GLY PHE ASN ALA LYS          
SEQRES   5 A  235  THR ASP ALA LEU LEU GLU ILE ALA ALA ILE THR LEU LYS          
SEQRES   6 A  235  MET ASP GLU GLN GLY TRP LEU MET PRO ASP THR THR LEU          
SEQRES   7 A  235  HIS PHE HIS VAL GLU PRO PHE VAL GLY ALA ASN LEU GLN          
SEQRES   8 A  235  PRO GLU ALA LEU ALA PHE ASN GLY ILE ASP PRO ASN ASP          
SEQRES   9 A  235  PRO ASP ARG GLY ALA VAL SER GLU TYR GLU ALA LEU HIS          
SEQRES  10 A  235  GLU ILE PHE LYS VAL VAL ARG LYS GLY ILE LYS ALA SER          
SEQRES  11 A  235  GLY CYS ASN ARG ALA ILE MET VAL ALA HIS ASN ALA ASN          
SEQRES  12 A  235  PHE ASP HIS SER PHE MET MET ALA ALA ALA GLU ARG ALA          
SEQRES  13 A  235  SER LEU LYS ARG ASN PRO PHE HIS PRO PHE ALA THR PHE          
SEQRES  14 A  235  ASP THR ALA ALA LEU ALA GLY LEU ALA LEU GLY GLN THR          
SEQRES  15 A  235  VAL LEU SER LYS ALA CYS GLN THR ALA GLY MET ASP PHE          
SEQRES  16 A  235  ASP SER THR GLN ALA HIS SER ALA LEU TYR ASP THR GLU          
SEQRES  17 A  235  ARG THR ALA VAL LEU PHE CYS GLU ILE VAL ASN ARG TRP          
SEQRES  18 A  235  LYS ARG LEU GLY GLY TRP PRO LEU SER ALA ALA GLU GLU          
SEQRES  19 A  235  VAL                                                          
SEQRES   1 B  235  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 B  235  LEU VAL PRO ARG GLY SER HIS MET SER ASP ASN ALA GLN          
SEQRES   3 B  235  LEU THR GLY LEU CYS ASP ARG PHE ARG GLY PHE TYR PRO          
SEQRES   4 B  235  VAL VAL ILE ASP VAL GLU THR ALA GLY PHE ASN ALA LYS          
SEQRES   5 B  235  THR ASP ALA LEU LEU GLU ILE ALA ALA ILE THR LEU LYS          
SEQRES   6 B  235  MET ASP GLU GLN GLY TRP LEU MET PRO ASP THR THR LEU          
SEQRES   7 B  235  HIS PHE HIS VAL GLU PRO PHE VAL GLY ALA ASN LEU GLN          
SEQRES   8 B  235  PRO GLU ALA LEU ALA PHE ASN GLY ILE ASP PRO ASN ASP          
SEQRES   9 B  235  PRO ASP ARG GLY ALA VAL SER GLU TYR GLU ALA LEU HIS          
SEQRES  10 B  235  GLU ILE PHE LYS VAL VAL ARG LYS GLY ILE LYS ALA SER          
SEQRES  11 B  235  GLY CYS ASN ARG ALA ILE MET VAL ALA HIS ASN ALA ASN          
SEQRES  12 B  235  PHE ASP HIS SER PHE MET MET ALA ALA ALA GLU ARG ALA          
SEQRES  13 B  235  SER LEU LYS ARG ASN PRO PHE HIS PRO PHE ALA THR PHE          
SEQRES  14 B  235  ASP THR ALA ALA LEU ALA GLY LEU ALA LEU GLY GLN THR          
SEQRES  15 B  235  VAL LEU SER LYS ALA CYS GLN THR ALA GLY MET ASP PHE          
SEQRES  16 B  235  ASP SER THR GLN ALA HIS SER ALA LEU TYR ASP THR GLU          
SEQRES  17 B  235  ARG THR ALA VAL LEU PHE CYS GLU ILE VAL ASN ARG TRP          
SEQRES  18 B  235  LYS ARG LEU GLY GLY TRP PRO LEU SER ALA ALA GLU GLU          
SEQRES  19 B  235  VAL                                                          
SEQRES   1 C    7   DT  DT  DA  DC  DA  DC  DC                                  
SEQRES   1 D    7   DT  DT  DA  DC  DA  DC  DC                                  
HET     MG  A 301       1                                                       
HET     CO  A 302       1                                                       
HET     MG  B 301       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM      CO COBALT (II) ION                                                  
FORMUL   5   MG    2(MG 2+)                                                     
FORMUL   6   CO    CO 2+                                                        
FORMUL   8  HOH   *632(H2 O)                                                    
HELIX    1   1 GLY A    9  PHE A   14  1                                   6    
HELIX    2   2 GLN A   71  GLY A   79  1                                   9    
HELIX    3   3 SER A   91  GLY A  111  1                                  21    
HELIX    4   4 ALA A  122  ALA A  136  1                                  15    
HELIX    5   5 THR A  151  GLY A  160  1                                  10    
HELIX    6   6 VAL A  163  ALA A  171  1                                   9    
HELIX    7   7 ASP A  176  ALA A  180  5                                   5    
HELIX    8   8 SER A  182  LEU A  204  1                                  23    
HELIX    9   9 SER A  210  GLU A  214  5                                   5    
HELIX   10  10 GLY B    9  PHE B   14  1                                   6    
HELIX   11  11 GLN B   71  GLY B   79  1                                   9    
HELIX   12  12 ASP B   84  GLY B   88  5                                   5    
HELIX   13  13 SER B   91  GLY B  111  1                                  21    
HELIX   14  14 ALA B  122  ALA B  136  1                                  15    
HELIX   15  15 THR B  151  GLY B  160  1                                  10    
HELIX   16  16 VAL B  163  ALA B  171  1                                   9    
HELIX   17  17 ASP B  176  ALA B  180  5                                   5    
HELIX   18  18 SER B  182  LEU B  204  1                                  23    
HELIX   19  19 PRO B  208  GLU B  214  5                                   7    
SHEET    1   A 6 ALA A  89  VAL A  90  0                                        
SHEET    2   A 6 LEU A  52  VAL A  62  1  N  HIS A  61   O  VAL A  90           
SHEET    3   A 6 LEU A  36  MET A  46 -1  N  THR A  43   O  ASP A  55           
SHEET    4   A 6 PHE A  17  THR A  26 -1  N  GLU A  25   O  LEU A  37           
SHEET    5   A 6 ARG A 114  ALA A 119  1  O  ARG A 114   N  TYR A  18           
SHEET    6   A 6 PHE A 143  ASP A 150  1  O  PHE A 149   N  MET A 117           
SHEET    1   B 5 LEU B  52  HIS B  61  0                                        
SHEET    2   B 5 LEU B  36  MET B  46 -1  N  ALA B  41   O  LEU B  58           
SHEET    3   B 5 PHE B  17  THR B  26 -1  N  GLU B  25   O  LEU B  37           
SHEET    4   B 5 ARG B 114  ALA B 119  1  O  ARG B 114   N  TYR B  18           
SHEET    5   B 5 PHE B 143  ASP B 150  1  O  PHE B 149   N  MET B 117           
LINK         OD1 ASP A  23                MG    MG A 301     1555   1555  2.53  
LINK        MG    MG A 301                 O   HOH A 415     1555   1555  2.54  
LINK        MG    MG A 301                 O   HOH A 425     1555   1555  2.49  
LINK        MG    MG A 301                 O   HOH A 434     1555   1555  2.14  
LINK        MG    MG A 301                 O3'  DC C   6     1555   1555  2.55  
LINK         OD1 ASP B  23                MG    MG B 301     1555   1555  2.49  
LINK        MG    MG B 301                 O   HOH B 419     1555   1555  2.52  
LINK        MG    MG B 301                 O   HOH B 430     1555   1555  2.44  
LINK        MG    MG B 301                 O   HOH B 465     1555   1555  2.45  
LINK        MG    MG B 301                 O3'  DC D   6     1555   1555  2.60  
CISPEP   1 TRP A  207    PRO A  208          0        -4.39                     
CISPEP   2 TRP B  207    PRO B  208          0        -6.25                     
SITE     1 AC1  6 ASP A  23  HOH A 415  HOH A 425  HOH A 434                    
SITE     2 AC1  6  DC C   6   DC C   7                                          
SITE     1 AC2  3 HIS A  61  HOH A 594  HIS B  61                               
SITE     1 AC3  6 ASP B  23  HOH B 419  HOH B 430  HOH B 465                    
SITE     2 AC3  6  DC D   6   DC D   7                                          
CRYST1   96.422  106.092   46.952  90.00  90.00  90.00 P 21 21 2     8          
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      0.010371  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009426  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021298        0.00000