Plasma membrane microdomains regulate turnover of transport proteins in yeast.
Plasma membrane microdomains regulate turnover of transport proteins in yeast.
复制标题
DOI:
10.1083/jcb.200806035
复制
发表时间:
2008-12-15
期刊:
影响因子:
--
通讯作者:
Tanner W
中科院分区:
文献类型:
--
作者:
Grossmann G;Malinsky J;Stahlschmidt W;Loibl M;Weig-Meckl I;Frommer WB;Opekarová M;Tanner W
In this study, we investigate whether the stable segregation of proteins and lipids within the yeast plasma membrane serves a particular biological function. We show that 21 proteins cluster within or associate with the ergosterol-rich membrane compartment of Can1 (MCC). However, proteins of the endocytic machinery are excluded from MCC. In a screen, we identified 28 genes affecting MCC appearance and found that genes involved in lipid biosynthesis and vesicle transport are significantly overrepresented. Deletion of Pil1, a component of eisosomes, or of Nce102, an integral membrane protein of MCC, results in the dissipation of all MCC markers. These deletion mutants also show accelerated endocytosis of MCC-resident permeases Can1 and Fur4. Our data suggest that release from MCC makes these proteins accessible to the endocytic machinery. Addition of arginine to wild-type cells leads to a similar redistribution and increased turnover of Can1. Thus, MCC represents a protective area within the plasma membrane to control turnover of transport proteins.
登录
查看更多内容
影响因子:
7.8
作者:
Cleves, AE;Cooper, DNW;Barondes, SH;Kelly, RB
通讯作者:
Kelly, RB
影响因子:
64.5
作者:
Kaksonen, M;Toret, CP;Drubin, DG
通讯作者:
Drubin, DG
影响因子:
11.4
作者:
Friant, S;Lombardi, R;Riezman, H
通讯作者:
Riezman, H
影响因子:
3.3
作者:
Alvarez, Francisco J.;Douglas, Lois M.;Konopka, James B.
通讯作者:
Konopka, James B.
影响因子:
4
作者:
Malinska, K;Malinsky, J;Tanner, W
通讯作者:
Tanner, W