ArticleMolecular cell2026
Cryo-EM structure of soluble VPS13C suggests its regulation by a conformational switch and by calmodulin.
Article in Molecular cell, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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
1 citing paper in PubMed.
- Lysosomes enlist endoplasmic reticulum microdomains for repair.Nature cell biology · 2026Article
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13 authors.
Funding
Abstract
Bridge-like lipid transfer proteins (BLTPs) play fundamental roles in cellular lipid redistribution between organellar membranes. They comprise bridge domains spanning organelles at contact sites that allow lipids to transit through the cytosol between adjacent membranes. The assembly of BLTPs into complexes with adaptor proteins enables lipid transfer. To address the mechanisms underlying the assembly and regulation of BLTP complexes, we used cryo-EM to resolve the structure of one such BLTP, the Parkinson's disease protein VPS13C, at near-atomic resolution. The structure identifies a lipid-transfer-nonpermissive conformation, in which the built-in C-terminal VAB adaptor module blocks the end of the lipid transfer bridge, interfering with lipid delivery. We also identify calmodulin (CaM), central to calcium signaling, as a constitutive VPS13C interactor. Calcium induces conformational changes in the VPS13C-CaM complex, suggesting calcium regulation of VPS13 function. Altogether, this structure of intact VPS13C serves as a starting point for understanding its regulation and that of other VPS13 proteins.
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