Annexin A1 Tethers Membrane Contact Sites that Mediate ER to Endosome Cholesterol Transport
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چکیده
منابع مشابه
Annexin A1 Tethers Membrane Contact Sites that Mediate ER to Endosome Cholesterol Transport
Membrane contact sites between the ER and multivesicular endosomes/bodies (MVBs) play important roles in endosome positioning and fission and in neurite outgrowth. ER-MVB contacts additionally function in epidermal growth factor receptor (EGFR) tyrosine kinase downregulation by providing sites where the ER-localized phosphatase, PTP1B, interacts with endocytosed EGFR before the receptor is sort...
متن کاملThe formation and function of ER-endosome membrane contact sites☆
Recent advances in membrane contact site (MCS) biology have revealed key roles for MCSs in inter-organellar exchange, the importance of which is becoming increasingly apparent. Roles for MCSs in many essential physiological processes including lipid transfer, calcium exchange, receptor tyrosine kinase signalling, lipid droplet formation, autophagosome formation, organelle dynamics and neurite o...
متن کاملSTARD3 mediates endoplasmic reticulum‐to‐endosome cholesterol transport at membrane contact sites
StAR-related lipid transfer domain-3 (STARD3) is a sterol-binding protein that creates endoplasmic reticulum (ER)-endosome contact sites. How this protein, at the crossroad between sterol uptake and synthesis pathways, impacts the intracellular distribution of this lipid was ill-defined. Here, by using in situ cholesterol labeling and quantification, we demonstrated that STARD3 induces choleste...
متن کاملER-endosome contact sites in endosome positioning and protrusion outgrowth.
The endoplasmic reticulum (ER) makes abundant contacts with endosomes, and the numbers of contact sites increase as endosomes mature. It is already clear that such contact sites have diverse compositions and functions, but in this mini-review we will focus on two particular types of ER-endosome contact sites that regulate endosome positioning. Formation of ER-endosome contact sites that contain...
متن کاملER-endosome contact sites: molecular compositions and functions.
Recent studies have revealed the existence of numerous contact sites between the endoplasmic reticulum (ER) and endosomes in mammalian cells. Such contacts increase during endosome maturation and play key roles in cholesterol transfer, endosome positioning, receptor dephosphorylation, and endosome fission. At least 7 distinct contact sites between the ER and endosomes have been identified to da...
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ژورنال
عنوان ژورنال: Developmental Cell
سال: 2016
ISSN: 1534-5807
DOI: 10.1016/j.devcel.2016.05.005