The Cerebellum

, Volume 8, Issue 3, pp 323–333 | Cite as

The Role of Kv3-type Potassium Channels in Cerebellar Physiology and Behavior



Different subunits of the Kv3 subfamily of voltage-gated potassium (Kv) channels (Kv3.1–Kv3.4) are expressed in distinct neuronal subpopulations in the cerebellum. Behavioral phenotypes in Kv3-null mutant mice such as ataxia with prominent hypermetria and heightened alcohol sensitivity are characteristic of cerebellar dysfunction. Here, we review how the unique biophysical properties of Kv3-type potassium channels, fast activation and fast deactivation that enable cerebellar neurons to generate brief action potentials at high frequencies, affect firing patterns and influence cerebellum-mediated behavior.


Kv3 subfamily Potassium channels Cerebellum Motor dysfunction Purkinje cell 



The authors wish to thank Drs. Kim Huber and John Welsh for critical input to the manuscript. This work was supported in part by NIH grant NS42210 (RHJ).


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© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of NeuroscienceThe University of Texas Southwestern Medical CenterDallasUSA

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