ArticleNature communications2025
Structural insights into cholesterol sensing by the LYCHOS-mTORC1 pathway.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- CYP8B1 suppressed by Ras/ERK leads to cholesterol accumulation and bile acids reduction and facilitates hepatic tumorigenesis.Cancer & metabolism · 2026Article
- HR3/RORα-mediated cholesterol sensing regulates TOR signaling.Nature communications · 2026Article
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Authors and funding
10 authors.
Funding
Abstract
The lysosomal cholesterol sensor LYCHOS regulates mTORC1 signaling by coupling cholesterol sensing to GATOR1-Rag GTPase modulation, yet its structural mechanisms remain unclear. Here we report six cryo-electron microscopy structures of human LYCHOS, depicting five distinct states. These are categorized into a contracted state when complexed with a sufficient amount of the cholesterol analogue cholesteryl hemisuccinate (CHS), and an expanded state when CHS is deficient. The structure forms a homodimer, within each monomer the transmembrane region is divided into a permease-like domain (PLD) and a GPCR-like domain (GLD) with two clearly defined adjacent cholesterol binding sites between them. Cholesterol binding induces a translation of GLD towards PLD and exposes the cytosolic extension of transmembrane 15, which interacts with GATOR1. Our results elucidate the structural mechanism of cholesterol sensing by the mTORC1 pathway, providing a structural basis for developing inhibitors that selectively target mTORC1 pathway by blocking LYCHOS in its expanded state.
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