Quantification of lipid sorting during clathrin-mediated endocytosis
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Contributors
Abstract
Clathrin-mediated endocytosis is a major transport route for proteins from the plasma membrane to the interior of the cell. While the recruitment of cargo proteins to clathrin-coated pits is well understood, it remains an open question whether lipids are also sorted by this process. Here, to address this question, we combined super-resolution stimulated emission depletion imaging of bifunctional lipid probes with mathematical modelling. Quantification of ten different lipid species revealed significant differences in pit partitioning, ranging from slight enrichment to moderate exclusion. We find that the lipid asymmetry in the plasma membrane is sufficient to explain the observed trend. Taken together, our findings imply that clathrin-mediated endocytosis has a minor selectivity for cytoplasmic leaflet lipids, but overall does not substantially contribute to lipid sorting compared with non-vesicular trafficking.
Details
| Original language | English |
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| Journal | Nature cell biology |
| Publication status | E-pub ahead of print - 29 Sept 2026 |
| Peer-reviewed | Yes |
External IDs
| ORCID | /0000-0003-0475-3790/work/229893699 |
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