Differential Physiological Roles of ESCRT Complexes in Caenorhabditis elegans
- Authors
- Kim, Dong-Wan; Sung, Hyun; Shin, Donghyuk; Shen, Haihong; Ahnn, Joohong; Lee, Sun-Kyung; Lee, Sangho
- Issue Date
- Jun-2011
- Publisher
- KOREAN SOC MOLECULAR & CELLULAR BIOLOGY
- Keywords
- C. elegans; endocytosis; ESCRT; protein degradation; yolk protein
- Citation
- MOLECULES AND CELLS, v.31, no.6, pp.585 - 592
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- MOLECULES AND CELLS
- Volume
- 31
- Number
- 6
- Start Page
- 585
- End Page
- 592
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/168335
- DOI
- 10.1007/s10059-011-1045-z
- ISSN
- 1016-8478
- Abstract
- Endosomal sorting complex required for transport (ESCRT) complexes are involved in endosomal trafficking to the lysosome, cytokinesis, and viral budding. Extensive genetic, biochemical, and structural studies on the ESCRT system have been carried out in yeast and mammalian systems. However, the question of how the ESCRT system functions at the whole organism level has not been fully explored. In C. elegans, we performed RNAi experiments to knock-down gene expression of components of the ESCRT system and profiled their effects on protein degradation and endocytosis of YP170, a yolk protein. Targeted RNAi knock-down of ESCRT-I (tsg-101 and vps-28) and ESCRT-III (vps-24, and vps-32.2) components interfered with protein degradation while knock-down of ESCRT-II (vps-25 and vps-36) and ESCRT-III (vps-20 and vps-24) components hampered endocytosis. In contrast, the knockdown of vps-37, another ESCRT-I component, showed no defect in either YP170 uptake or degradation. Depletion of at least one component from each complex - ESCRT-0 (hgrs-1), ESCRT-I (tsg-101, vps-28, and vps-37), ESCRT-II (vps-36), ESCRT-III (vps-24), and Vps4 (vps-4) - resulted in abnormal distribution of embryos in the uterus of worms, possibly due to abnormal ovulation, fertilization, and egg-laying. These results suggest differential physiological roles of ESCRT-0, -I, -II, and -III complexes in the context of the whole organism, C. elegans.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 자연과학대학 > 서울 생명과학과 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.