ArticleNature communications2023
A conserved membrane protein negatively regulates Mce1 complexes in mycobacteria.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Mce transport systems inJournal of bacteriology · 2026Review
- The stress response factor SigH mediates intrinsic resistance to multiple antibiotics inMicrobiology spectrum · 2026Article
- Article
- A Key Metabolic Protein in Active Mycobacterium tuberculosis: Insights into Carbon, Nitrogen, and Sulfur Metabolism.Advances in experimental medicine and biology · 2026Review
- Comparative in silico analysis of mce operons across Mycobacteriaceae and Nocardiaceae: Insights into genetic arrangements and regulatory mechanisms.Archives of microbiology · 2025Article
- Proteomic characterization ofmSystems · 2025Article
- Article
- Structure of an endogenous mycobacterial MCE lipid transporter.Research square · 2023Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tuberculosis continues to pose a serious threat to global health. Mycobacterium tuberculosis, the causative agent of tuberculosis, is an intracellular pathogen that relies on various mechanisms to survive and persist within the host. Among their many virulence factors, mycobacteria encode Mce systems. Some of these systems are implicated in lipid uptake, but the molecular basis for Mce function(s) is poorly understood. To gain insights into the composition and architecture of Mce systems, we characterized the putative Mce1 complex involved in fatty acid transport. We show that the Mce1 system in Mycobacterium smegmatis comprises a canonical ATP-binding cassette transporter associated with distinct heterohexameric assemblies of substrate-binding proteins. Furthermore, we establish that the conserved membrane protein Mce1N negatively regulates Mce1 function via a unique mechanism involving blocking transporter assembly. Our work offers a molecular understanding of Mce complexes, sheds light on mycobacterial lipid metabolism and its regulation, and informs future anti-mycobacterial strategies.
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Registered trials
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