Golgin160 recruits the dynein motor to position the Golgi apparatus.

Dev Cell

Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, USA.

Published: July 2012

Membrane motility is a fundamental characteristic of all eukaryotic cells. One of the best-known examples is that of the mammalian Golgi apparatus, where constant inward movement of Golgi membranes results in its characteristic position near the centrosome. While it is clear that the minus-end-directed motor dynein is required for this process, the mechanism and regulation of dynein recruitment to Golgi membranes remains unknown. Here, we show that the Golgi protein golgin160 recruits dynein to Golgi membranes. This recruitment confers centripetal motility to membranes and is regulated by the GTPase Arf1. Further, during cell division, motor association with membranes is regulated by the dissociation of the receptor-motor complex from membranes. These results identify a cell-cycle-regulated membrane receptor for a molecular motor and suggest a mechanistic basis for achieving the dramatic changes in organelle positioning seen during cell division.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3417773PMC
http://dx.doi.org/10.1016/j.devcel.2012.05.023DOI Listing

Publication Analysis

Top Keywords

golgi membranes
12
golgin160 recruits
8
recruits dynein
8
golgi apparatus
8
membranes regulated
8
cell division
8
golgi
6
membranes
6
dynein
4
motor
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!