HEADER    TRANSCRIPTION                           09-MAR-00   1EKT              
OBSLTE     15-MAR-05 1EKT      1Z0R                                             
TITLE     SOLUTION STRUCTURE OF THE N-TERMINAL DNA RECOGNITION DOMAIN           
TITLE    2 OF THE BACILLUS SUBTILIS TRANSCRIPTION-STATE REGULATOR ABRB          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRANSCRIPTION STATE REGULATORY PROTEIN ABRB;               
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: N-TERMINAL DIMER FROM RESIDUES 1-53 (OF 94);               
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BACILLUS SUBTILIS;                              
SOURCE   3 ORGANISM_COMMON: BACTERIA;                                           
SOURCE   4 GENE: ABRB;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_COMMON: BACTERIA;                                  
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET-24                                    
KEYWDS    NOVEL DNA RECOGNITION TOPOLOGY                                        
EXPDTA    NMR, 20 STRUCTURES                                                    
AUTHOR    J.L.VAUGHN,V.FEHER,S.NAYLOR,M.A.STRAUCH,J.CAVANAGH                    
REVDAT   3   15-MAR-05 1EKT    1       OBSLTE                                   
REVDAT   2   01-APR-03 1EKT    1       JRNL                                     
REVDAT   1   13-DEC-00 1EKT    0                                                
JRNL        AUTH   J.L.VAUGHN,V.FEHER,S.NAYLOR,M.A.STRAUCH,J.CAVANAGH           
JRNL        TITL   NOVEL DNA BINDING DOMAIN AND GENETIC REGULATION              
JRNL        TITL 2 MODEL OF BACILLUS SUBTILIS TRANSITION STATE                  
JRNL        TITL 3 REGULATOR ABRB.                                              
JRNL        REF    NAT.STRUCT.BIOL.              V.   7  1139 2000              
JRNL        REFN   ASTM NSBIEW  US ISSN 1072-8368                               
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.0                                           
REMARK   3   AUTHORS     : BRUNGER, 1993                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1EKT COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998                       
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-MAR-2000.                
REMARK 100 THE RCSB ID CODE IS RCSB010685.                                      
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 305                                
REMARK 210  PH                             : 5.8                                
REMARK 210  IONIC STRENGTH                 : NULL                               
REMARK 210  PRESSURE                       : AMBIENT                            
REMARK 210  SAMPLE CONTENTS                : 1-2MM ABRBN53; >95% PURE; 20       
REMARK 210                                   MM PHOSPHATE BUFFER PH 5.8, 15     
REMARK 210                                   MM KCL, 0.1 MM MGCL2, 1 MM EDTA    
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : 3D_13C-SEPARATED_NOESY, 3D_        
REMARK 210                                   15N-SEPARATED_NOESY, HNHA,         
REMARK 210                                   HNHB, 3-D 15N TOCSY, 3-D 13C       
REMARK 210                                   SEQUENTIAL ASSIGNMENT PROTOCOLS    
REMARK 210  SPECTROMETER FIELD STRENGTH    : 500 MHZ, 600 MHZ                   
REMARK 210  SPECTROMETER MODEL             : DMX                                
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : FELIX 95,97, INSIGHT 97,98, X      
REMARK 210                                   -PLOR 3.0                          
REMARK 210   METHOD USED                   : EMBEDDING, DISTANCE GEOMETRY/      
REMARK 210                                   SIMULATED ANNEALING/ MOLECULAR     
REMARK 210                                   DYNAMICS                           
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 53                                 
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 20                                 
REMARK 210 CONFORMERS, SELECTION CRITERIA  : STRUCTURES WITH THE LOWEST         
REMARK 210                                   ENERGY                             
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 2                   
REMARK 210                                                                      
REMARK 210 REMARK: STRUCTURE WAS DETERMINED WITH A VARIETY OF 15N AND 13C/      
REMARK 210  15N EDITED STANDARD NMR TECHNIQUES                                  
REMARK 215                                                                      
REMARK 215 NMR STUDY                                                            
REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION           
REMARK 215 NMR DATA.  PROTEIN DATA BANK CONVENTIONS REQUIRE THAT                
REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON              
REMARK 215 THESE RECORDS ARE MEANINGLESS.                                       
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  M RES CSSEQI        PSI       PHI                                   
REMARK 500  1 ASP A  40      -91.56     56.53                                   
REMARK 500  1 ASP B  40      -84.38     56.12                                   
REMARK 500  2 ASP A  40      -94.67     51.96                                   
REMARK 500  2 ASP B  40      -91.14     47.50                                   
REMARK 500  3 ASP A  40      -89.18     55.78                                   
REMARK 500  3 ASP B  40      -88.50     53.52                                   
REMARK 500  4 ASP B  40      -92.18     44.57                                   
REMARK 500  5 ASP A  40      -85.17     55.98                                   
REMARK 500  5 ASP B  40      -92.86     50.05                                   
REMARK 500  6 ASP A  40      -90.12     49.16                                   
REMARK 500  6 ASP B  40      -92.10     53.45                                   
REMARK 500  7 ASP B  40      -93.00     43.32                                   
REMARK 500  8 LYS A   2      127.87     61.08                                   
REMARK 500  8 ASP A  40      -88.99     52.34                                   
REMARK 500  8 ASP B  40      -97.76     53.19                                   
REMARK 500  9 ASP A  40      -92.17     58.13                                   
REMARK 500  9 ASP B  40      -91.49     50.55                                   
REMARK 500 10 ASP B  40     -115.84     41.91                                   
REMARK 500 11 ASP A  40      -92.20     44.97                                   
REMARK 500 11 ASP B  40      -88.78     50.74                                   
REMARK 500 12 ASP A  40     -103.80     46.71                                   
REMARK 500 12 ASP B  40      -99.67     52.12                                   
REMARK 500 13 ASP A  40      -85.53     55.03                                   
REMARK 500 14 LYS A   2      167.17     65.69                                   
REMARK 500 15 LYS A   2      120.93     66.48                                   
REMARK 500 15 ASP A  40      -98.52     52.57                                   
REMARK 500 16 ASP A  40      -99.46     48.97                                   
REMARK 500 16 ASP B  40      -91.99     50.45                                   
REMARK 500 17 ASP A  40      -93.92     58.55                                   
REMARK 500 17 ASP B  40      -93.19     50.85                                   
REMARK 500 18 ASP A  40      -98.68     44.77                                   
REMARK 500 18 ASP B  40      -88.52     51.76                                   
REMARK 500 19 ASP A  40      -88.83     55.77                                   
REMARK 500 19 ASP B  40      -87.12     53.71                                   
REMARK 500 20 ASP A  40      -88.13     53.41                                   
REMARK 500 20 ASP B  40      -93.69     51.97                                   
DBREF  1EKT A    1    53  UNP    P08874   ABRB_BACSU       3     55             
DBREF  1EKT B    1    53  UNP    P08874   ABRB_BACSU       3     55             
SEQRES   1 A   53  MET LYS SER THR GLY ILE VAL ARG LYS VAL ASP GLU LEU          
SEQRES   2 A   53  GLY ARG VAL VAL ILE PRO ILE GLU LEU ARG ARG THR LEU          
SEQRES   3 A   53  GLY ILE ALA GLU LYS ASP ALA LEU GLU ILE TYR VAL ASP          
SEQRES   4 A   53  ASP GLU LYS ILE ILE LEU LYS LYS TYR LYS PRO ASN MET          
SEQRES   5 A   53  THR                                                          
SEQRES   1 B   53  MET LYS SER THR GLY ILE VAL ARG LYS VAL ASP GLU LEU          
SEQRES   2 B   53  GLY ARG VAL VAL ILE PRO ILE GLU LEU ARG ARG THR LEU          
SEQRES   3 B   53  GLY ILE ALA GLU LYS ASP ALA LEU GLU ILE TYR VAL ASP          
SEQRES   4 B   53  ASP GLU LYS ILE ILE LEU LYS LYS TYR LYS PRO ASN MET          
SEQRES   5 B   53  THR                                                          
HELIX    1   1 PRO A   19  GLY A   27  1                                   9    
HELIX    2   2 PRO B   19  GLY B   27  1                                   9    
SHEET    1   A 6 ILE A   6  ARG A   8  0                                        
SHEET    2   A 6 LEU A  34  ASP A  39 -1  O  LEU A  34   N  ARG A   8           
SHEET    3   A 6 LYS A  42  LYS A  47 -1  N  LYS A  42   O  ASP A  39           
SHEET    4   A 6 LYS B  42  LYS B  47 -1  O  ILE B  43   N  LEU A  45           
SHEET    5   A 6 LEU B  34  ASP B  39 -1  N  GLU B  35   O  LYS B  46           
SHEET    6   A 6 ILE B   6  ARG B   8 -1  O  ILE B   6   N  ILE B  36           
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           1          
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      1.000000  0.000000  0.000000        0.00000                         
SCALE2      0.000000  1.000000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  1.000000        0.00000                         
MODEL        1