ARBB recruits GPCRs into clathrin-coated pits
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Interaction between beta-arrestins and components of the clathrin-coat mediate the recruitment of GPCRs into nascent clathrin-coated pits (Shenoy et al, 2001; Goodman et al, 1997; Goodman et al, 1997; Laporte et al, 1999; reviewed in Gurevich and Gurevich, 2006). In the case of the V2 vasopressin receptor (AVPR2) and the beta-2 adrenergic receptor (ADRB2), this beta-arrestin-mediated recruitment into clathrin-coated pits is negatively regulated by UBQLN2, possibly through competition for binding to the UIM-containing proteins such as EPS15, EPN1 and EPN2 (N'Diaye et al, 2008).
β-阻遏蛋白与网格蛋白衣成分的相互作用介导G蛋白偶联受体(GPCRs)被招募至新生成的网格蛋白衣小窝中(Shenoy 等人,2001年;Goodman 等人,1997年;Goodman 等人,1997年;Laporte 等人,1999年;Gurevich 和 Gurevich,2006年综述)。在V2型血管加压素受体(AVPR2)和β2肾上腺素受体(ADRB2)的情况下,这种由β-阻遏蛋白介导的网格蛋白衣小窝招募过程受到UBQLN2的负调控,可能通过竞争结合含有UIM结构域的蛋白,如EPS15、EPN1和EPN2(N'Diaye 等人,2008年)。
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