학술논문

Bro1 family proteins harmonize cargo sorting with vesicle formation.
Document Type
Article
Source
BioEssays. Aug2022, Vol. 44 Issue 8, p1-8. 8p.
Subject
*FREIGHT & freightage
*MEMBRANE proteins
*PROTEINS
*UBIQUITIN
*DOCKS
Language
ISSN
0265-9247
Abstract
The Endosomal Sorting Complexes Required for Transport (ESCRTs) drive membrane remodeling in a variety of cellular processes that include the formation of endosomal intralumenal vesicles (ILVs) during multivesicular body (MVB) biogenesis. During MVB sorting, ESCRTs recognize ubiquitin (Ub) attached to membrane protein cargo and execute ILV formation by controlling the activities of ESCRT‐III polymers regulated by the AAA‐ATPase Vps4. Exactly how these events are coordinated to ensure proper cargo loading into ILVs remains unclear. Here we discuss recent work documenting the ability of Bro1, an ESCRT‐associated Ub‐binding protein, to coordinate ESCRT‐III and Vps4‐dependent ILV biogenesis with upstream events such as cargo recognition. [ABSTRACT FROM AUTHOR]