2M4K

Solution structure of the delta subunit of RNA polymerase from Bacillus subtilis


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Study of the Partially Disordered Full-Length delta Subunit of RNA Polymerase from Bacillus subtilis.

Papouskova, V.Kaderavek, P.Otrusinova, O.Rabatinova, A.Sanderova, H.Novacek, J.Krasny, L.Sklenar, V.Zidek, L.

(2013) Chembiochem 14: 1772-1779

  • DOI: 10.1002/cbic.201300226

  • PubMed Abstract: 
  • The partially disordered δ subunit of RNA polymerase was studied by various NMR techniques. The structure of the well-folded N-terminal domain was determined based on inter-proton distances in NOESY spectra. The obtained structural model was compared ...

    The partially disordered δ subunit of RNA polymerase was studied by various NMR techniques. The structure of the well-folded N-terminal domain was determined based on inter-proton distances in NOESY spectra. The obtained structural model was compared to the previously determined structure of a truncated construct (lacking the C-terminal domain). Only marginal differences were identified, thus indicating that the first structural model was not significantly compromised by the absence of the C-terminal domain. Various (15) N relaxation experiments were employed to describe the flexibility of both domains. The relaxation data revealed that the C-terminal domain is more flexible, but its flexibility is not uniform. By using paramagnetic labels, transient contacts of the C-terminal tail with the N-terminal domain and with itself were identified. A propensity of the C-terminal domain to form β-type structures was obtained by chemical shift analysis. Comparison with the paramagnetic relaxation enhancement indicated a well-balanced interplay of repulsive and attractive electrostatic interactions governing the conformational behavior of the C-terminal domain. The results showed that the δ subunit consists of a well-ordered N-terminal domain and a flexible C-terminal domain that exhibits a complex hierarchy of partial ordering.


    Organizational Affiliation

    Faculty of Science, NCBR and CEITEC MU, Masaryk University, Kamenice 5, 625 00 Brno (Czech Republic).




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase subunit delta
A
172Bacillus subtilis (strain 168)Mutation(s): 0 
Gene Names: rpoE
Find proteins for P12464 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P12464
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-09
    Type: Initial release
  • Version 1.1: 2016-10-12
    Type: Structure summary