1WCN

NMR structure of the carboxyterminal domains of Escherichia coli NusA


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 90 
  • Conformers Submitted: 19 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

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This is version 1.2 of the entry. See complete history


Literature

The E. Coli Nusa Carboxy-Terminal Domains are Structurally Similar and Show Specific Rnap- and Lambdan Interactions

Eisenmann, A.Schwarz, S.Prasch, S.Schweimer, K.Roesch, P.

(2005) Protein Sci 14: 2018

  • DOI: 10.1110/ps.051372205
  • Primary Citation of Related Structures:  
    1WCN, 1WCL

  • PubMed Abstract: 
  • The carboxy-terminal domain of the transcription factor Escherichia coli NusA, NusACTD, interacts with the protein N of bacteriophage lambda, lambdaN, and the carboxyl terminus of the E. coli RNA polymerase alpha subunit, alphaCTD. We solved the solution structure of the unbound NusACTD with high-resolution nuclear magnetic resonance (NMR) ...

    The carboxy-terminal domain of the transcription factor Escherichia coli NusA, NusACTD, interacts with the protein N of bacteriophage lambda, lambdaN, and the carboxyl terminus of the E. coli RNA polymerase alpha subunit, alphaCTD. We solved the solution structure of the unbound NusACTD with high-resolution nuclear magnetic resonance (NMR). Additionally, we investigated the binding sites of lambdaN and alphaCTD on NusACTD using NMR titrations. The solution structure of NusACTD shows two structurally similar subdomains, NusA(353-416) and NusA(431-490), matching approximately two homologous acidic sequence repeats. Further characterization of NusACTD with 15N NMR relaxation data suggests that the interdomain region is only weakly structured and that the subdomains are not interacting. Both subdomains adopt an (HhH)2 fold. These folds are normally involved in DNA-protein and protein-protein interactions. NMR titration experiments show clear differences of the interactions of these two domains with alphaCTD and lambdaN, in spite of their structural similarity.


    Organizational Affiliation

    Department of Biopolymers, University of Bayreuth, 95440 Bayreuth, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TRANSCRIPTION ELONGATION PROTEIN NUSAA70Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0AFF6 (Escherichia coli (strain K12))
Explore P0AFF6 
Go to UniProtKB:  P0AFF6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 90 
  • Conformers Submitted: 19 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 
  • OLDERADO: 1WCN Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-08-31
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance