ArticleProceedings of the National Academy of Sciences of the United States of America2021
Seipin accumulates and traps diacylglycerols and triglycerides in its ring-like structure.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.
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Who cites it
66 citing papers in PubMed, 105 citations in OpenAlex.
- Tripartite ER-mitochondria-lipid droplets contact sites control adipocyte metabolic flexibility.The EMBO journal · 2026Article
- From EM to AI: Multiscale imaging of the secretory pathway with insights from plant cells.Journal of microscopy · 2026Review
- Article
- Heterogeneity, dynamics and organelle interactions of lipid droplets.Nature reviews. Molecular cell biology · 2026Review
- Seipin-defined ER sites undergo distinct enrichment of factors for the biogenesis of sterol ester rich lipid droplets.iScience · 2026Article
- Adipogenin-seipin, lipid droplet architecture and the expanding metabolic frontier: Implications for metabolic disorders and cancer.Metabolism open · 2026Article
- Mitochondrial dysfunction and lipid droplet dynamics in MASH: HSD17B13 as a therapeutic target.Frontiers in cell and developmental biology · 2026Review
- ATG2A-mediated DAG transfer recruits DGAT2 for lipid droplet growth.Nature structural & molecular biology · 2025Article
- Oil body membrane proteins as sensors of salt stress in sunflower seedlings: a proteomic insight.Plant signaling & behavior · 2025Article
- The luminal domain region of Seipin/Fld1 is dispensable for establishing functional ER sites for lipid droplet biogenesis.Nature communications · 2025Article
- Adipogenin promotes the development of lipid droplets by binding a dodecameric seipin complex.Science (New York, N.Y.) · 2025Article
- Navigating lipid droplet proteins - part II: molecular mechanisms underlying ER-to-lipid droplet protein partitioning.Biochemical Society transactions · 2025Review
- Decoding the Lipid Droplet Proteome: New Frontiers in Cardiovascular Disease Research.International journal of molecular sciences · 2025Review
- Targeting Seipin to Alleviate Hepatic Steatosis in Zebrafish (Danio Rerio).Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Functional study of Phaeodactylum tricornutum Seipin highlights specificities of lipid droplets biogenesis in diatoms.The New phytologist · 2025Article
- Mechanism for oil-phase separation by the lipid droplet assembly complex.bioRxiv : the preprint server for biology · 2025Article
- Phosphatidic acid drives spatiotemporal distribution of Pex30 at ER-LD contact sites.The Journal of cell biology · 2025Article
- Exploiting lipid droplet metabolic pathway to foster lipid production: oleosin in focus.Plant cell reports · 2024Review
- Seipin governs phosphatidic acid homeostasis at the inner nuclear membrane.Nature communications · 2024Article
- Involvement of a battery of investigated genes in lipid droplet pathophysiology and associated comorbidities.Adipocyte · 2024Review
6 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lipid droplets (LDs) are intracellular organelles responsible for lipid storage, and they emerge from the endoplasmic reticulum (ER) upon the accumulation of neutral lipids, mostly triglycerides (TG), between the two leaflets of the ER membrane. LD biogenesis takes place at ER sites that are marked by the protein seipin, which subsequently recruits additional proteins to catalyze LD formation. Deletion of seipin, however, does not abolish LD biogenesis, and its precise role in controlling LD assembly remains unclear. Here, we use molecular dynamics simulations to investigate the molecular mechanism through which seipin promotes LD formation. We find that seipin clusters TG, as well as its precursor diacylglycerol, inside its unconventional ring-like oligomeric structure and that both its luminal and transmembrane regions contribute to this process. This mechanism is abolished upon mutations of polar residues involved in protein-TG interactions into hydrophobic residues. Our results suggest that seipin remodels the membrane of specific ER sites to prime them for LD biogenesis.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.