Title

Tuning Multiple Motor Travel via Single Motor Velocity

Authors

Authors

J. Xu; Z. Y. Shu; S. J. King;S. P. Gross

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Traffic

Keywords

cargo travel; kinesin; multiple-motor transport; transport regulation; velocity; TUG-OF-WAR; MICROTUBULE-BASED MOTILITY; CYTOPLASMIC DYNEIN; KINESIN; MOTORS; INTRACELLULAR-TRANSPORT; VESICLE TRANSPORT; FORCE GENERATION; MOLECULAR MOTORS; CARGO TRANSPORT; IN-VITRO; Cell Biology

Abstract

Microtubule-based molecular motors often work in small groups to transport cargos in cells. A key question in understanding transport (and its regulation in vivo) is to identify the sensitivity of multiple-motor-based motion to various single molecule properties. Whereas both single-motor travel distance and microtubule binding rate have been demonstrated to contribute to cargo travel, the role of single-motor velocity is yet to be explored. Here, we recast a previous theoretical study, and make explicit a potential contribution of velocity to cargo travel. We test this possibility experimentally, and demonstrate a strong negative correlation between single-motor velocity and cargo travel for transport driven by two motors. Our study thus discovers a previously unappreciated role of single-motor velocity in regulating multiple-motor transport.

Journal Title

Traffic

Volume

13

Issue/Number

9

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

1198

Last Page

1205

WOS Identifier

WOS:000307724900002

ISSN

1398-9219

Share

COinS