H-NS dimerization motif

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

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The H-NS dimerisation domain defines a new fold contributing to DNA recognition

Bloch, V.Yang, Y.Margeat, E.Chavanieu, A.Auge, M.T.Robert, B.Arold, S.Rimsky, S.Kochoyan, M.

(2003) Nat Struct Biol 10: 3

  • DOI: https://doi.org/10.1038/nsb904
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    H-NS, a protein found in Gram-negative bacteria, is involved in structuring the bacterial chromosome and acts as a global regulator for the expression of a wide variety of genes. These functions are correlated with both its DNA-binding and oligomerization properties. We have identified the minimal dimerization domain of H-NS, a 46 amino acid-long N-terminal fragment, and determined its structure using heteronuclear NMR spectroscopy. The highly intertwined structure of the dimer, reminiscent of a handshake, defines a new structural fold, which may offer a possibility for discriminating prokaryotic from eukaryotic proteins in drug design. Using mutational analysis, we also show that this N-terminal domain actively contributes to DNA binding, conversely to the current paradigm. Together, our data allows us to propose a model for the action of full length H-NS.

  • Organizational Affiliation

    Centre de Biochimie Structurale, CNRS-UMR 5048, INSERM-U554, Université de Montpellier I, 29 rue de Navacelles, 34090 Montpellier, France.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-binding protein H-NS
A, B
46Escherichia coliMutation(s): 0 
Gene Names: hns
Find proteins for P0ACF8 (Escherichia coli (strain K12))
Explore P0ACF8 
Go to UniProtKB:  P0ACF8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0ACF8
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-02-18
    Type: Initial release
  • Version 1.1: 2008-04-29
    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