A genome-wide RNA interference screen uncovers two p24 proteins as regulators of Wingless secretion.

نویسندگان

  • Fillip Port
  • George Hausmann
  • Konrad Basler
چکیده

Wnt proteins are secreted, lipid-modified glycoproteins that control animal development and adult tissue homeostasis. Secretion of Wnt proteins is at least partly regulated by a dedicated machinery. Here, we report a genome-wide RNA interference screen for genes involved in the secretion of Wingless (Wg), a Drosophila Wnt. We identify three new genes required for Wg secretion. Of these, Emp24 and Eclair are required for proper export of Wg from the endoplasmic reticulum (ER). We propose that Emp24 and Eca act as specific cargo receptors for Wg to concentrate it in forming vesicles at sites of ER export.

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عنوان ژورنال:
  • EMBO reports

دوره 12 11  شماره 

صفحات  -

تاریخ انتشار 2011