Cited by 157Microtubule and mitosis dynamicsCellular Mechanics and InteractionsGenetic and Kidney Cyst Diseases

A combinatorial MAP code dictates polarized microtubule transport

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Monroy, Brigette Y., Tan, Tracy C., Oclaman, Janah May, Han, Jisoo S., Simó, Sergi, Niwa, Shinsuke, Nowakowski, Dan W., McKenney, Richard J. +1 more·2020·Developmental Cell

Published version of a preprint

Abstract

SUMMARY Many eukaryotic cells distribute their intracellular components asymmetrically through regulated active transport driven by molecular motors along microtubule tracks. While intrinsic and extrinsic regulation of motor activity exists, what governs the overall distribution of activated motor-cargo complexes within cells remains unclear. Here, we utilize in vitro reconstitution of purified motor proteins and non-enzymatic microtubule-associated proteins (MAPs) to demonstrate that MAPs exhibit distinct influences on the motility of the three main classes of transport motors: kinesin-1, kinesin-3, and cytoplasmic dynein. Further, we dissect how combinations of MAPs affect motors, and unveil MAP9 as a positive modulator of kinesin-3 motility. From these data, we propose a general “MAP code” that has the capacity to strongly bias directed movement along microtubules and helps elucidate the intricate intracellular sorting observed in highly polarized cells such as neurons.

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Authors
Monroy, B. Y., Tan, T. C., Oclaman, J. M., Han, J. S., Simó, S., Niwa, S., Nowakowski, D. W., McKenney, R. J., & Ori-McKenney, K. M.
Affiliations
  • University of California, Davis (US)
  • Tohoku University (JP)
Corresponding author
Ori-McKenney, Kassandra M.
Venue
Developmental Cell
Publisher
Elsevier BV
Published
2020-04
Volume
53
Issue
1
Pages
60-72.e4
ISSN
1534-5807 (ISSN-L)
OpenAlex
W3008749317
Cited by
157
References
87
Citations by year
2026: 21 · 2025: 22 · 2024: 16 · 2023: 27 · 2022: 24 · 2021: 24 · 2020: 21 · 2019: 2
FWCI
11.97
Type
journal article
Language
en
Open access
Locations
  • Developmental Cell (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Simons Foundation Autism Research Initiative
  • Pew Charitable Trusts
  • Simons Foundation (1R35GM124889, 5R00NS089428, R01NS109176)
  • National Institutes of Health (R01NS109176, 5R00NS089428, 1R35GM124889, 1R00HD080981, 1R35GM133688)
  • March of Dimes Foundation
  • Japan Society for the Promotion of Science (17H05010, 17KK0139)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
Keywords
microtubule-associated proteins, polarized transport, microtubule transport, kinesin-1, kinesin-3, cytoplasmic dynein, motor protein motility, active transport, in vitro reconstitution, neuronal polarity, intracellular sorting
MeSH terms
Animals, Biological Transport, Cell Movement, Cytoplasm, Dyneins, Microtubule-Associated Proteins, Microtubules, Kinesins, Protein Transport

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