Phosphorylation of threonine 156 of the μ2 subunit of the AP2 complex is essential for endocytosis in vitro and in vivo
In: Current Biology, , Heft 11, S. 896-900
Online
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Zugriff:
The clathrin-coated pit is the major port of entry for many receptors and pathogens and is the paradigm for membrane-based sorting events in higher cells [1]. Recently, it has been possible to reconstitute in vitro the events leading to assembly, invagination, and budding off of clathrin-coated vesicles, allowing dissection of the machinery required for sequestration of receptors into these structures [2–6]. The AP2 adaptor complex is a key element of this machinery linking receptors to the coat lattice, and it has previously been reported that AP2 can be phosphorylated both in vitro and in vivo [7–10]. However, the physiological significance of this has never been established. Here, we show that phosphorylation of a single threonine residue (Thr156) of the μ2 subunit of the AP2 complex is essential for efficient endocytosis of transferrin both in an in vitro coated-pit budding assay and in living cells.
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Phosphorylation of threonine 156 of the μ2 subunit of the AP2 complex is essential for endocytosis in vitro and in vivo
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Autor/in / Beteiligte Person: | Andrews, Paul D. ; Olusanya, Oyinkan ; Smythe, Elizabeth ; Swedlow, Jason R. |
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Zeitschrift: | Current Biology, , Heft 11, S. 896-900 |
Veröffentlichung: | Elsevier Science Ltd. |
Medientyp: | unknown |
ISSN: | 0960-9822 (print) |
DOI: | 10.1016/S0960-9822(01)00240-8 |
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