2KVC

Solution structure of the Mycobacterium tuberculosis protein Rv0543c, a member of the DUF3349 superfamily. Seattle Structural Genomics Center for Infectious Disease target MytuD.17112.a


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Inaugural structure from the DUF3349 superfamily of proteins, Mycobacterium tuberculosis Rv0543c.

Buchko, G.W.Phan, I.Myler, P.J.Terwilliger, T.C.Kim, C.Y.

(2011) Arch.Biochem.Biophys. 506: 150-156

  • DOI: 10.1016/j.abb.2010.12.001

  • PubMed Abstract: 
  • The first structure for a member of the DUF3349 (PF11829) family of proteins, Rv0543c from Mycobacterium tuberculosis, has been determined using NMR-based methods and some of its biophysical properties characterized. Rv0543c is a 100 residue, 11.3 kD ...

    The first structure for a member of the DUF3349 (PF11829) family of proteins, Rv0543c from Mycobacterium tuberculosis, has been determined using NMR-based methods and some of its biophysical properties characterized. Rv0543c is a 100 residue, 11.3 kDa protein that both size exclusion chromatography and NMR spectroscopy show to be a monomer in solution. The structure of the protein consists of a bundle of five α-helices, α1 (M1-Y16), α2 (P21-C33), α3 (S37-G52), α4 (G58-H65) and α5 (S72-G87), held together by a largely conserved group of hydrophobic amino acid side chains. Heteronuclear steady-state {¹H}-¹⁵N NOE, T₁, and T₂ values are similar through-out the sequence indicating that the backbones of the five helices are in a single motional regime. The thermal stability of Rv0543c, characterized by circular dichroism spectroscopy, indicates that Rv0543c irreversibly unfolds upon heating with an estimated melting temperature of 62.5 °C. While the biological function of Rv0543c is still unknown, the presence of DUF3349 proteins predominantly in Mycobacterium and Rhodococcus bacterial species suggests that Rv0543 may have a biological function unique to these bacteria, and consequently, may prove to be an attractive drug target to combat tuberculosis.


    Organizational Affiliation

    Biological Sciences Division and Seattle Structural Genomics Center for Infectious Disease, Pacific Northwest National Laboratory, Richland, WA 99352, USA. garry.buchko@pnl.gov




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative uncharacterized protein
A
103Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra)Mutation(s): 0 
Find proteins for A5TZS3 (Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra))
Go to UniProtKB:  A5TZS3
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: target function 
  • Olderado: 2KVC Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-03-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance