Microtubule-Based Transport and the Distribution, Tethering, and Organization of Organelles

Overview

Journal Cold Spring Harb Perspect Biol

Specialties Biology
Molecular Biology

Date 2017 May 3

PMID 28461574

Citations 96

Authors

Kari Barlan

Vladimir I Gelfand

Affiliations

Soon will be listed here.

Abstract

SUMMARYMicrotubules provide long tracks along which a broad range of organelles and vesicles are transported by kinesin and dynein motors. Motor protein complexes also tether cargoes to cytoskeletal filaments, helping facilitate their interaction and communication. The generation of biochemically distinct microtubule subpopulations allows subsets of motors to recognize a given microtubule identity, allowing further organization within the cytoplasm. Both transport and tethering are spatiotemporally regulated through multiple modes, including acute modification of both motor-cargo and motor-track associations by various physiological signals. Strict regulation of intracellular transport is particularly important in specialized cell types such as neurons. Here, we review general mechanisms by which cargo transport is controlled and also highlight examples of transport regulated by multiple mechanisms.

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