ArticleJournal of bioenergetics and biomembranes2013
Solution structure of subunit γ (γ(1-204)) of the Mycobacterium tuberculosis F-ATP synthase and the unique loop of γ(165-178), representing a novel TB drug target.
Article in Journal of bioenergetics and biomembranes, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Review
- The structure of the catalytic domain of the ATP synthase fromProceedings of the National Academy of Sciences of the United States of America · 2019Article
- Bioenergetics of Mycobacterium: An Emerging Landscape for Drug Discovery.Pathogens (Basel, Switzerland) · 2018Review
- The uniqueness of subunit α of mycobacterial F-ATP synthases: An evolutionary variant for niche adaptation.The Journal of biological chemistry · 2017Article
- Energy metabolism and drug efflux in Mycobacterium tuberculosis.Antimicrobial agents and chemotherapy · 2014Review
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6 authors.
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Abstract
Tuberculosis, caused by the strain Mycobacterium tuberculosis, is in focus of interest due to the emergence of multi- and extensive drug-resistant TB strains. The F(1)F(O) ATP synthase is one of the essential enzymes in energy requirement of both proliferating aerobic and hypoxic dormant stage of mycobacterium life cycle, and therefore a potential TB drug target. Subunit γ of F-ATP synthases plays an important role in coupling and catalysis via conformational transitions of its N- and C-termini as well as the bottom segment of the globular domain of γ, which is in close proximity to the rotating and ion-pumping c-ring. Here we describe the first production, purification and low resolution solution structure of subunit γ (γ(1-204), Mtγ(1-204)) of the M. tuberculosis F-ATP synthase. Mtγ(1-204) is a pear-like shaped protein with a molecular weight of 23 ± 2 kDa. Protein sequence analysis of Mtγ revealed differences in the amino acid composition to γ subunits from other sources, in particular the presence of a unique stretch of 13 amino acid residues (Mtγ(165-178)). NMR studies showed that Mtγ(165-178) forms a loop of polar residues. Mtγ(165-178) has been aligned at the bottom of the globular domain of the Escherichia coli subunit γ, being in close vicinity to the polar residues R41, Q42, E44 and Q46 (M. tuberculosis nomenclature) of the c-ring. The putative role(s) of Mtγ(165-178) in coupling and as a potential drug target are discussed.
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