期刊
CHEMISTRY AND PHYSICS OF LIPIDS
卷 164, 期 6, 页码 443-450出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.chemphyslip.2011.03.002
关键词
Cholesterol; Lipid metabolism; Membrane contact site; OSBP; Oxysterol; Phosphoinositide
资金
- Novo Nordisk Fonden [NNF11OC1014724] Funding Source: researchfish
Families of oxysterol-binding protein (ORP) homologues are present in eukaryotes from yeast to man. Their hallmark feature is a characteristic ligand binding domain that, for several family members, has been shown to accommodate different oxysterols and/or cholesterol. ORPs of the long subtype contain targeting determinants for the endoplasmic reticulum and to other organelle membranes, the most prominent of which are phosphoinositide-binding pleckstrin homology domains, while short ORPs comprise a ligand binding domain with little additional sequences. There is increasing evidence that both long and short ORPs can be enriched at membrane contact sites, junctions of the endoplasmic reticulum with other organelles, where they are suggested to execute regulatory or sterol transfer functions. In this review we discuss the current evidence for putative roles of ORPs as sterol sensors or transporters. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
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