The INI has a new website!

This is a legacy webpage. Please visit the new site to ensure you are seeing up to date information.

Skip to content

PDS

Seminar

Contributed Seminar: Membrane nanotubes pulled cooperatively by molecular motors

Bassereau, P (Paris)
Monday 03 April 2006, 14:00-15:00

Seminar Room 1, Newton Institute

Abstract

Long and very dynamic tubular structures growing along the cytoskeleton have been observed in vivo. Similar tubular nano-structures have been obtained in vitro with a minimal system composed of kinesins grafted on the membranes of giant vesicles, and moving along immobilized microtubule. When the kinesins are individually grafted to single lipids, dynamical clusters of motors pulling the tubes have been observed at the tip of the tubes, in agreement with theory. Different dynamical regimes have been observed : below a threshold depending on membrane tension and motor concentration, no tube is formed but above this threshold, we observe either stable tubes or oscillating tubes depending on the relative vesicle size and tube length

Presentation

[ppt ] [zip ]

Audio

MP3MP3 Real AudioReal Audio

Back to top ∧