2HHI

The solution structure of antigen MPT64 from Mycobacterium tuberculosis defines a novel class of beta-grasp proteins


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 24 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Solution Structure of Antigen MPT64 from Mycobacterium tuberculosis Defines a New Family of Beta-Grasp Proteins.

Wang, Z.Potter, B.M.Gray, A.M.Sacksteder, K.A.Geisbrecht, B.V.Laity, J.H.

(2007) J.Mol.Biol. 366: 375-381

  • DOI: 10.1016/j.jmb.2006.11.039

  • PubMed Abstract: 
  • The MPT64 protein and its homologs form a highly conserved family of secreted proteins with unknown function that are found within the pathogenic Mycobacteria genus. The founding member of this family from Mycobacterium tuberculosis (MPT64 or protein ...

    The MPT64 protein and its homologs form a highly conserved family of secreted proteins with unknown function that are found within the pathogenic Mycobacteria genus. The founding member of this family from Mycobacterium tuberculosis (MPT64 or protein Rv1980c) is expressed only when Mycobacteria cells are actively dividing. By virtue of this relatively unique expression profile, Rv1980c is currently under phase III clinical trials to evaluate its potential to replace tuberculin, or purified protein derivative, as the rapid diagnostic of choice for detection of active tuberculosis infection. We describe here the NMR solution structure of Rv1980c. This structure reveals a previously undescribed fold that is based upon a variation of a beta-grasp motif most commonly found in protein-protein interaction domains. Examination of this structure in conjunction with multiple sequence alignments of MPT64 homologs identifies a candidate ligand-binding site, which may help guide future studies of Rv1980c function. The work presented here also suggests structure-based approaches for increasing the antigenic potency of a Rv1980c-based diagnostic.


    Related Citations: 
    • Design and optimization of a recombinant system for large-scale production of the MPT64 antigen from Mycobacterium tuberculosis.
      Geisbrecht, B.V.,Nikonenko, B.,Samala, R.,Nakamura, R.,Nacy, C.A.,Sacksteder, K.A.
      (2006) Protein Expr.Purif. 46: 64
    • NMR assignment of protein Rv1980c from Mycobacterium tuberculosis
      Danahy, J.M.,Potter, B.M.,Geisbrecht, B.V.,Laity, J.H.
      (2005) J.Biomol.NMR 33: 73


    Organizational Affiliation

    Division of Cell Biology and Biophysics, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, MO 64110-2499, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Immunogenic protein MPT64
A
204Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: mpt64
Find proteins for P9WIN9 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WIN9
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 24 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2HHI Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-12-05
    Type: Initial release
  • Version 1.1: 2007-10-21
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance