SNX27 mediates PDZ-directed sorting from endosomes to the plasma membrane.
SNX27 mediates PDZ-directed sorting from endosomes to the plasma membrane.
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DOI:
10.1083/jcb.201004060
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发表时间:
2010-08-23
期刊:
影响因子:
--
通讯作者:
von Zastrow M
中科院分区:
文献类型:
--
作者:
Lauffer BE;Melero C;Temkin P;Lei C;Hong W;Kortemme T;von Zastrow M
G protein–coupled receptors rely on the PDZ domain of SNX27 for endosomal recycling. Postsynaptic density 95/discs large/zonus occludens-1 (PDZ) domain–interacting motifs, in addition to their well-established roles in protein scaffolding at the cell surface, are proposed to act as cis-acting determinants directing the molecular sorting of transmembrane cargo from endosomes to the plasma membrane. This hypothesis requires the existence of a specific trans-acting PDZ protein that mediates the proposed sorting operation in the endosome membrane. Here, we show that sorting nexin 27 (SNX27) is required for efficient PDZ-directed recycling of the β2-adrenoreceptor (β2AR) from early endosomes. SNX27 mediates this sorting function when expressed at endogenous levels, and its recycling activity requires both PDZ domain–dependent recognition of the β2AR cytoplasmic tail and Phox homology (PX) domain–dependent association with the endosome membrane. These results identify a discrete role of SNX27 in PDZ-directed recycling of a physiologically important signaling receptor, and extend the concept of cargo-specific molecular sorting in the recycling pathway.
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影响因子:
7.8
作者:
Ang, AL;Fölsch, H;Koivisto, UM;Pypaert, M;Mellman, I
通讯作者:
Mellman, I
影响因子:
5.8
作者:
Gouet, P;Courcelle, E;Métoz, F
通讯作者:
Métoz, F
影响因子:
64.5
作者:
Fölsch, H;Ohno, H;Mellman, I
通讯作者:
Mellman, I
影响因子:
4.8
作者:
Gage, RM;Kim, KA;von Zastrow, M
通讯作者:
von Zastrow, M
影响因子:
2.7
作者:
Collins, Tony J.
通讯作者:
Collins, Tony J.