ArticlePLoS biology2024
SLMO transfers phosphatidylserine between the outer and inner mitochondrial membrane in Drosophila.
Article in PLoS biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Rewiring mitochondrial phosphatidylethanolamine metabolism identifies new and unaccounted trafficking steps.Journal of lipid research · 2026Article
- Rewiring Mitochondrial Phosphatidylethanolamine Metabolism Identifies New and Unaccounted Trafficking Steps.bioRxiv : the preprint server for biology · 2026Article
- Article
- Serum Metabolomic Profiles Predict Sensitivity and Toxicity to Platinum- Fluorouracil Chemotherapy in a Gastric Cancer Xenograft Model.Combinatorial chemistry & high throughput screening · 2026Article
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Authors and funding
4 authors.
Funding
Abstract
Phospholipids are critical building blocks of mitochondria, and proper mitochondrial function and architecture rely on phospholipids that are primarily transported from the endoplasmic reticulum (ER). Here, we show that mitochondrial form and function rely on synthesis of phosphatidylserine (PS) in the ER through phosphatidylserine synthase (PSS), trafficking of PS from ER to mitochondria (and within mitochondria), and the conversion of PS to phosphatidylethanolamine (PE) by phosphatidylserine decarboxylase (PISD) in the inner mitochondrial membrane (IMM). Using a forward genetic screen in Drosophila, we found that Slowmo (SLMO) specifically transfers PS from the outer mitochondrial membrane (OMM) to the IMM within the inner boundary membrane (IBM) domain. Thus, SLMO is required for shaping mitochondrial morphology, but its putative conserved binding partner, dTRIAP, is not. Importantly, SLMO's role in maintaining mitochondrial morphology is conserved in humans via the SLMO2 protein and is independent of mitochondrial dynamics. Our results highlight the importance of a conserved PSS-SLMO-PISD pathway in maintaining the structure and function of mitochondria.
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Registered trials
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