RGD Reference Report - SK2 channel expression and function in cerebellar Purkinje cells. - Rat Genome Database

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SK2 channel expression and function in cerebellar Purkinje cells.

Authors: Hosy, E  Piochon, C  Teuling, E  Rinaldo, L  Hansel, C 
Citation: Hosy E, etal., J Physiol. 2011 Jul 15;589(Pt 14):3433-40. doi: 10.1113/jphysiol.2011.205823. Epub 2011 Apr 26.
RGD ID: 7205439
Pubmed: PMID:21521760   (View Abstract at PubMed)
PMCID: PMC3167108   (View Article at PubMed Central)
DOI: DOI:10.1113/jphysiol.2011.205823   (Journal Full-text)

Small-conductance calcium-activated K(+) channels (SK channels) regulate the excitability of neurons and their responsiveness to synaptic input patterns. SK channels contribute to the afterhyperpolarization (AHP) following action potential bursts, and curtail excitatory postsynaptic potentials (EPSPs) in neuronal dendrites. Here we review evidence that SK2 channels are expressed in rat cerebellar Purkinje cells during development and throughout adulthood, and play a key role in diverse cellular processes such as the regulation of the spike firing frequency and the modulation of calcium transients in dendritic spines. In Purkinje cells as well as in other types of neurons, SK2 channel plasticity seems to provide an important mechanism allowing these cells to adjust their intrinsic excitability and to alter the probabilities for the induction of synaptic learning correlates, such as long-term potentiation (LTP).

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
regulation of neuronal synaptic plasticity  IMP 7205439 RGD 

Cellular Component
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
dendritic spine  IDA 7205439 RGD 

Molecular Function
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
small conductance calcium-activated potassium channel activity  IMP 7205439 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Kcnn2  (potassium calcium-activated channel subfamily N member 2)


Additional Information