The Nucleotide-binding State of Microtubules Modulates Kinesin Processivity and the Ability of Tau to Inhibit Kinesin-mediated Transport

作者:McVicker Derrick P; Chrin Lynn R; Berger Christopher L*
来源:JOURNAL OF BIOLOGICAL CHEMISTRY, 2011, 286(50): 42873-42880.
DOI:10.1074/jbc.M111.292987

摘要

Background: Tau inhibits kinesin on GDP-microtubules in vitro, but the physiological significance in neurons is unclear. Results: On GTP-microtubules, Tau loses its inhibitory effect, and kinesin becomes less processive. Conclusion: The nucleotide-binding state of the microtubule influences the behavior of both kinesin and Tau. Significance: Tau has different functions, both inhibitory and non-inhibitory, in regulating axonal transport.

  • 出版日期2011-12-16