ArticleThe EMBO journal2021
Molecular basis of accessible plasma membrane cholesterol recognition by the GRAM domain of GRAMD1b.
Article in The EMBO journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 2 of them syntheses that pooled it.
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Who cites it
46 citing papers in PubMed, 2 syntheses or guidelines pooled it, 130 citations in OpenAlex.
- Conserved hepatic RNA signatures across multiple cohorts reveal novel mechanistic clues for advanced fibrosis in human MASLD.Hepatology communications · 2026Pooled it
- Multi-ancestry genome-wide association analyses incorporating SNP-by-psychosocial interactions identify novel loci for serum lipids.Translational psychiatry · 2025Pooled it
- Sterol binding mechanism of a plant START-like domain: A new sterol transport paradigm via an amphiphilic cavity.The FEBS journal · 2026Article
- Arl8b inactivates the Rab11a recycling pathway to promote LAMP1 sorting and lysosome biogenesis.The Journal of cell biology · 2026Article
- Sequential membrane remodeling by cholesterol distinctly modulates HCN channels in naïve and neuropathic DRG neurons.The Journal of general physiology · 2026Article
- Lipid metabolic reprogramming in clear cell renal cell carcinoma: focus on high-density lipoprotein-related pathways.Oncology reviews · 2026Review
- Ist2 promotes lipid transfer by Osh6 via its membrane tethering and lipid scramblase activities.Science advances · 2025Article
- T cell cholesterol transport links intestinal immune responses to dietary lipid absorption.Science (New York, N.Y.) · 2025Article
- mTOR inhibition reprograms cellular lipid homeostasis by inducing alternative lipid uptake and promoting cholesterol transport.Molecular cell · 2025Article
- Plasma membrane accessible cholesterol is regulated by ACC1 and lipid droplets.bioRxiv : the preprint server for biology · 2025Article
- METTL3 promotes the hypertrophic scar fibrosis via m6A RNA methylation of GRAMD1B mRNA.Journal of molecular histology · 2025Article
- GRAMD1B is a regulator of lipid homeostasis, autophagic flux and phosphorylated tau.Nature communications · 2025Article
- Nonvesicular cholesterol transport in physiology.The Journal of clinical investigation · 2025Review
- Using GRAM Domain-Based Biosensors to Monitor Accessible Cholesterol Distribution in Live Cells.Methods in molecular biology (Clifton, N.J.) · 2025Article
- Development and characterization of fluorescent cholesteryl probes with enhanced solvatochromic and pH-sensitive properties for live-cell imaging.Scientific reports · 2024Article
- Imaging Interorganelle Phospholipid Transport by Extended Synaptotagmins Using Bioorthogonally Tagged Lipids.ACS chemical biology · 2024Article
- TRPV4-dependent CaBiophysical journal · 2024Article
- Peptide-based allosteric inhibitor targets TNFR1 conformationally active region and disables receptor-ligand signaling complex.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- MiR-4646-5p Acts as a Tumor-Suppressive Factor in Triple Negative Breast Cancer and Targets the Cholesterol Transport Protein GRAMD1B.Non-coding RNA · 2023Article
- Visualization of accessible cholesterol using a GRAM domain-based biosensor.Nature communications · 2023Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cholesterol is essential for cell physiology. Transport of the "accessible" pool of cholesterol from the plasma membrane (PM) to the endoplasmic reticulum (ER) by ER-localized GRAMD1 proteins (GRAMD1a/1b/1c) contributes to cholesterol homeostasis. However, how cells detect accessible cholesterol within the PM remains unclear. We show that the GRAM domain of GRAMD1b, a coincidence detector for anionic lipids, including phosphatidylserine (PS), and cholesterol, possesses distinct but synergistic sites for sensing accessible cholesterol and anionic lipids. We find that a mutation within the GRAM domain of GRAMD1b that is associated with intellectual disability in humans specifically impairs cholesterol sensing. In addition, we identified another point mutation within this domain that enhances cholesterol sensitivity without altering its PS sensitivity. Cell-free reconstitution and cell-based assays revealed that the ability of the GRAM domain to sense accessible cholesterol regulates membrane tethering and determines the rate of cholesterol transport by GRAMD1b. Thus, cells detect the codistribution of accessible cholesterol and anionic lipids in the PM and fine-tune the non-vesicular transport of PM cholesterol to the ER via GRAMD1s.
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Registered trials
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.