3P3A

Crystal structure of a putative thiosulfate sulfurtransferase from Mycobacterium thermoresistible


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Mycobacterium thermoresistibile as a source of thermostable orthologs of Mycobacterium tuberculosis proteins.

Edwards, T.E.Liao, R.Phan, I.Myler, P.J.Grundner, C.

(2012) Protein Sci. 21: 1093-1096

  • DOI: 10.1002/pro.2084
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The genus Mycobacterium comprises major human pathogens such as the causative agent of tuberculosis, Mycobacterium tuberculosis (Mtb), and many environmental species. Tuberculosis claims ~1.5 million lives every year, and drug resistant strains of Mt ...

    The genus Mycobacterium comprises major human pathogens such as the causative agent of tuberculosis, Mycobacterium tuberculosis (Mtb), and many environmental species. Tuberculosis claims ~1.5 million lives every year, and drug resistant strains of Mtb are rapidly emerging. To aid the development of new tuberculosis drugs, major efforts are currently under way to determine crystal structures of Mtb drug targets and proteins involved in pathogenicity. However, a major obstacle to obtaining crystal structures is the generation of well-diffracting crystals. Proteins from thermophiles can have better crystallization and diffraction properties than proteins from mesophiles, but their sequences and structures are often divergent. Here, we establish a thermophilic mycobacterial model organism, Mycobacterium thermoresistibile (Mth), for the study of Mtb proteins. Mth tolerates higher temperatures than Mtb or other environmental mycobacteria such as M. smegmatis. Mth proteins are on average more soluble than Mtb proteins, and comparison of the crystal structures of two pairs of orthologous proteins reveals nearly identical folds, indicating that Mth structures provide good surrogates for Mtb structures. This study introduces a thermophile as a source of protein for the study of a closely related human pathogen and marks a new approach to solving challenging mycobacterial protein structures.


    Related Citations: 
    • Increasing the structural coverage of tuberculosis drug targets.
      Baugh, L.,Phan, I.,Begley, D.W.,Clifton, M.C.,Armour, B.,Dranow, D.M.,Taylor, B.M.,Muruthi, M.M.,Abendroth, J.,Fairman, J.W.,Fox, D.,Dieterich, S.H.,Staker, B.L.,Gardberg, A.S.,Choi, R.,Hewitt, S.N.,Napuli, A.J.,Myers, J.,Barrett, L.K.,Zhang, Y.,Ferrell, M.,Mundt, E.,Thompkins, K.,Tran, N.,Lyons-Abbott, S.,Abramov, A.,Sekar, A.,Serbzhinskiy, D.,Lorimer, D.,Buchko, G.W.,Stacy, R.,Stewart, L.J.,Edwards, T.E.,Van Voorhis, W.C.,Myler, P.J.
      (2015) Tuberculosis (Edinb) 95: 142


    Organizational Affiliation

    Emerald BioStructures, Bainbridge Island, Washington 98110, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Thiosulfate sulfurtransferase
A, B
320Mycobacterium thermoresistibileMutation(s): 0 
Find proteins for E2QRA0 (Mycobacterium thermoresistibile)
Go to UniProtKB:  E2QRA0
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 56.220α = 90.00
b = 83.370β = 90.00
c = 146.820γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-06-27
    Type: Database references
  • Version 1.3: 2015-04-22
    Type: Database references