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Related Experiment Video

Updated: Jul 17, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
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Published on: February 1, 2020

Directing traffic: MAPs, motors, and cellular logistics.

Ibtissem Nabti1, George T Shubeita1

  • 1Physics Program, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.

Current Opinion in Cell Biology
|July 15, 2026
PubMed
Summary

Microtubule-associated proteins (MAPs) transform cell transport networks. These MAPs regulate motor proteins, controlling organelle positioning and impacting diseases like cancer and neurodegeneration.

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Characterizing the Composition of Molecular Motors on Moving Axonal Cargo Using "Cargo Mapping" Analysis
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Published on: October 30, 2014

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Last Updated: Jul 17, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
11:41

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Published on: February 1, 2020

Characterizing the Composition of Molecular Motors on Moving Axonal Cargo Using "Cargo Mapping" Analysis
11:09

Characterizing the Composition of Molecular Motors on Moving Axonal Cargo Using "Cargo Mapping" Analysis

Published on: October 30, 2014

Area of Science:

  • Cell Biology
  • Molecular Neuroscience
  • Biophysics

Background:

  • Eukaryotic cells utilize microtubule transport for precise organelle positioning.
  • Kinesin and dynein motors are known drivers of directional movement.
  • Motor activity alone doesn't fully explain the complexity of organelle trafficking.

Purpose of the Study:

  • To synthesize evidence on how non-motor microtubule-associated proteins (MAPs) regulate microtubule transport.
  • To explore the mechanisms by which MAPs control motor protein activity and access.
  • To highlight the role of MAPs in cellular signaling and disease.

Main Methods:

  • Literature synthesis and evidence review.
  • Analysis of MAP interactions with microtubule lattices.
  • Investigation of MAP-mediated modulation of motor protein function.

Main Results:

  • MAPs modify microtubule mechanics and create specific lattice subsets.
  • MAPs control motor access and activation through steric filtering, modulation, or activation.
  • MAPs couple microtubule transport to cellular signaling pathways.

Conclusions:

  • MAPs convert microtubules into adaptable, information-rich transport networks.
  • MAP regulation of transport efficiency and directionality is crucial for cellular function.
  • Dysregulation of MAP-controlled transport is implicated in neurodegeneration and cancer, suggesting therapeutic potential.