Rab10 regulates tubular endosome formation through KIF13A and KIF13B motors.

Autor: Etoh, Kan, Fukuda, Mitsunori
Předmět:
Zdroj: Journal of Cell Science; Mar2019, Vol. 132 Issue 5, p1-13, 13p
Abstrakt: Recycling endosomes are stations that sort endocytic cargoes to their appropriate destinations. Tubular endosomes have been characterized as a recycling endosomal compartment for clathrinindependent cargoes. However, the molecular mechanism by which tubular endosome formation is regulated is poorly understood. In this study, we identified Rab10 as a novel protein localized at tubular endosomes by using a comprehensive localization screen of EGFPtagged Rab small GTPases. Knockout of Rab10 completely abolished tubular endosomal structures in HeLaM cells. We also identified kinesin motors KIF13A and KIF13B as novel Rab10- interacting proteins by means of in silico screening. The results of this study demonstrated that both the Rab10-binding homology domain and the motor domain of KIF13A are required for Rab10-positive tubular endosome formation. Our findings provide insight into the mechanism by which the Rab10-KIF13A (or KIF13B) complex regulates tubular endosome formation. This article has an associated First Person interview with the first author of the paper. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index