FBP17 and CIP4 recruit SHIP2 and lamellipodin to prime the plasma membrane for fast endophilin-mediated endocytosis.
FBP17 and CIP4 recruit SHIP2 and lamellipodin to prime the plasma membrane for fast endophilin-mediated endocytosis.
复制标题
DOI:
10.1038/s41556-018-0146-8
复制
发表时间:
2018-09
影响因子:
21.3
通讯作者:
Boucrot E
中科院分区:
文献类型:
--
作者:
Chan Wah Hak L;Khan S;Di Meglio I;Law AL;Lucken-Ardjomande Häsler S;Quintaneiro LM;Ferreira APA;Krause M;McMahon HT;Boucrot E
Endocytosis mediates the cellular uptake of micronutrients and turnover of plasma membrane proteins. Clathrin-mediated endocytosis (CME) is the major uptake pathway in resting cells, but several Clathrin-independent endocytic (CIE) routes exist in parallel. One such pathway, fast Endophilin-mediated endocytosis (FEME), is not constitutive but triggered upon activation of certain receptors including β1 adrenergic receptor (β1-AR). FEME activates promptly following stimulation as Endophilin is pre-enriched by the Pi(3,4)P2-binding protein Lamellipodin (Lpd). However, in the absence of stimulation, Endophilin foci abort and disassemble after a few seconds. Looking for additional proteins involved in FEME, we found that 20 out of 65 BAR domain-containing proteins tested colocalized with Endophilin spots. Among them, FBP17 and CIP4 prime the membrane of resting cells for FEME by recruiting the 5’-lipid phosphatase SHIP2 and Lpd to mediate local production of Pi(3,4)P2 and Endophilin pre-enrichment. Membrane-bound GTP-loaded Cdc42 recruits FBP17 and CIP4, before being locally deactivated by RICH1 and SH3BP1 GAPs. This generates the transient assembly and disassembly of Endophilin spots, which last 5-10 seconds. This mechanism periodically primes patches of membrane for prompt responses upon FEME activation.
登录
查看更多内容
影响因子:
3.7
作者:
Sánchez-Barrena MJ;Vallis Y;Clatworthy MR;Doherty GJ;Veprintsev DB;Evans PR;McMahon HT
通讯作者:
McMahon HT
影响因子:
4
作者:
Francis MK;Holst MR;Vidal-Quadras M;Henriksson S;Santarella-Mellwig R;Sandblad L;Lundmark R
通讯作者:
Lundmark R
影响因子:
8
作者:
通讯作者:
--
影响因子:
64.8
作者:
Billuart, P;Bienvenu, T;Chelly, J
通讯作者:
Chelly, J
影响因子:
4
作者:
Endris, Volker;Haussmann, Lydia;Rappold, Gudrun
通讯作者:
Rappold, Gudrun