1DC7

STRUCTURE OF A TRANSIENTLY PHOSPHORYLATED "SWITCH" IN BACTERIAL SIGNAL TRANSDUCTION

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 1 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

Structure of a transiently phosphorylated switch in bacterial signal transduction.

Kern, D., Volkman, B.F., Luginbuhl, P., Nohaile, M.J., Kustu, S., Wemmer, D.E.

(1999) Nature 402: 894-898

  • DOI: 10.1038/47273
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Receiver domains are the dominant molecular switches in bacterial signalling. Although several structures of non-phosphorylated receiver domains have been reported, a detailed structural understanding of the activation arising from phosphorylation ha ...

    Receiver domains are the dominant molecular switches in bacterial signalling. Although several structures of non-phosphorylated receiver domains have been reported, a detailed structural understanding of the activation arising from phosphorylation has been impeded by the very short half-lives of the aspartylphosphate linkages. Here we present the first structure of a receiver domain in its active state, the phosphorylated receiver domain of the bacterial enhancer-binding protein NtrC (nitrogen regulatory protein C). Nuclear magnetic resonance spectra were taken during steady-state autophosphorylation/dephosphorylation, and three-dimensional spectra from multiple samples were combined. Phosphorylation induces a large conformational change involving a displacement of beta-strands 4 and 5 and alpha-helices 3 and 4 away from the active site, a register shift and an axial rotation in helix 4. This creates an exposed hydrophobic surface that is likely to transmit the signal to the transcriptional activation domain.

    Related Citations: 
    • 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

    Organizational Affiliation: 

    Department of Biochemistry, Brandeis University, Waltham, Massachusetts 02454, USA. dkern@brandeis.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NITROGEN REGULATION PROTEIN
A
124Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)Mutation(s): 0 
Gene Names: glnG (ntrC)
Find proteins for P41789 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Go to UniProtKB:  P41789
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 1 

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-01-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance