Segarra Verónica A, Sharma Anupam, Lemmon Sandra K
Department of Biology, High Point University, High Point, NC, USA 27268.
Department of Microbiology, University of Georgia, Athens, GA, USA 30602.
MicroPubl Biol. 2021 Mar 29;2021. doi: 10.17912/micropub.biology.000381.
The autophagy-related protein Atg27p has been previously shown to localize to the autophagy-specific pre-autophagosomal structure (PAS) as well as to several organelles, including the late Golgi, the vacuolar membrane, and the endosome. Given that Atg27p localization to the vacuolar membrane in particular has been shown to be dependent on both its C-terminal tyrosine sorting motif and the AP-3 adaptor, and that Atg27p can be found in clathrin-coated vesicles, we set out to determine whether Atg27p localization inside cells is dependent on clathrin or on any of its cargo adaptors. We report that Atg27p localization is clathrin- and Ent3p/5p-dependent.
先前已表明,自噬相关蛋白Atg27p定位于自噬特异性的前自噬体结构(PAS)以及包括晚期高尔基体、液泡膜和内体在内的几种细胞器。鉴于Atg27p定位于液泡膜尤其已被证明依赖于其C末端酪氨酸分选基序和AP-3衔接蛋白,并且Atg27p可在网格蛋白包被的小泡中发现,我们着手确定Atg27p在细胞内的定位是否依赖于网格蛋白或其任何货物衔接蛋白。我们报告Atg27p的定位依赖于网格蛋白和Ent3p/5p。