Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

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This is version 1.3 of the entry. See complete history


Three-dimensional solution structure of the N-terminal receiver domain of NTRC.

Volkman, B.F.Nohaile, M.J.Amy, N.K.Kustu, S.Wemmer, D.E.

(1995) Biochemistry 34: 1413-1424

  • DOI: https://doi.org/10.1021/bi00004a036
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    NTRC is a transcriptional enhancer binding protein whose N-terminal domain is a member of the family of receiver domains of two-component regulatory systems. Using 3D and 4D NMR spectroscopy, we have completed the 1H, 15N, and 13C assignments and determined the solution structure of the N-terminal receiver domain of the NTRC protein. Determination of the three-dimensional structure was carried out with the program X-PLOR (Brünger, 1992) using a total of 915 NMR-derived distance and dihedral angle restraints. The resultant family of structures has an average root mean square deviation of 0.81 A from the average structure for the backbone atoms involved in well-defined secondary structure. The structure is comprised of five alpha-helices and a five-stranded parallel beta-sheet, in a (beta/alpha)5 topology. Comparison of the solution structure of the NTRC receiver domain with the crystal structures of the homologous protein CheY in both the Mg(2+)-free and Mg(2+)-bound forms [Stock, A.M., Mottonen, J. M., Stock, J. B., & Schutt, C. E. (1989) Nature 337, 745-749; Volz, K., & Matsumura, P. (1991) J. Biol. Chem. 296, 15511-15519; Stock, A. M., Martinez-Hackert, E., Rasmussen, B. F., West, A. H., Stock, J. B., Ringe, D., & Petsko, G. A. (1993) Biochemistry 32, 13375-13380; Bellsolell, L., Prieto, J., Serrano, L., & Coll, M. (1994) J. Mol. Biol. 238, 489-495] reveals a very similar fold, with the only significant difference occurring in the positioning of helix 4 relative to the rest of the protein. Examination of the conformation of consensus residues of the receiver domain superfamily [Volz, K. (1993) Biochemistry 32, 11741-11753] in the structures of the NTRC receiver domain and CheY establishes the structural importance of residues whose side chains are involved in hydrogen bonding or hydrophobic core interactions. The importance of some nonconsensus residues which may be conserved for their ability to fulfill helix capping roles is also discussed.

  • Organizational Affiliation

    Department of Molecular and Cell Biology, University of California, Berkeley.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
NTRC RECEIVER DOMAIN124Salmonella enterica subsp. enterica serovar TyphimuriumMutation(s): 0 
Find proteins for P41789 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Explore P41789 
Go to UniProtKB:  P41789
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UniProt GroupP41789
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-01-26
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Database references, Derived calculations, Other