3P3A

Crystal structure of a putative thiosulfate sulfurtransferase from Mycobacterium thermoresistible


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 

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:  
    3P3A, 3HZU

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thiosulfate sulfurtransferaseAB320Mycolicibacterium thermoresistibileMutation(s): 0 
Gene Names: NODE_3859_LENGTH_3444_COV_7.617015_22
EC: 2.8.1.1
Find proteins for E2QRA0 (Mycolicibacterium thermoresistibile)
Explore E2QRA0 
Go to UniProtKB:  E2QRA0
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.22α = 90
b = 83.37β = 90
c = 146.82γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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