The Kinesin-1 Chemomechanical Cycle: Stepping Toward a Consensus

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Kinesin-1 serves as a model for understanding fundamentals of motor protein mechanochemistry and for interpreting functional diversity across the kinesin superfamily. Despite sustained work over the last three decades, disagreements remain regarding the events that trigger the two key transitions in the stepping cycle: detachment of the trailing head from the microtubule and binding of the tethered head to the next tubulin binding site. This review describes the conflicting views of these events and highlights recent work that sheds light on these long-standing controversies. It concludes by presenting a consensus kinesin-1 chemomechanical that incorporates recent work, resolves discrepancies, and highlights key questions for future experimental work. It is hoped that this model provides a framework for understanding how diverse kinesins are tuned for their specific cellular roles.

Original languageEnglish (US)
Pages (from-to)1216-1225
Number of pages10
JournalBiophysical journal
Issue number6
StatePublished - Mar 29 2016

All Science Journal Classification (ASJC) codes

  • Biophysics


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