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Ovsepian, S.V. ; LeBerre, M.* ; Steuber, V.* ; O'Leary, V.B. ; Leibold, C.* ; Dolly, J.O.*

Distinctive role of KV1.1 subunit in the biology and functions of low threshold K+ channels with implications for neurological disease.

Pharmacol. Ther. 159, 93-101 (2016)
Postprint DOI PMC
Open Access Green
The diversity of pore-forming subunits of KV1 channels (KV1.1-KV1.8) affords their physiological versatility and predicts a range of functional impairments resulting from genetic aberrations. Curiously, identified so far human neurological conditions associated with dysfunctions of KV1 channels have been linked exclusively to mutations in the KCNA1 gene encoding for the KV1.1 subunit. The absence of phenotypes related to irregularities in other subunits, including the prevalent KV1.2 subunit of neurons is highly perplexing given that deletions of corresponding kcna2 gene in mouse models precipitate symptoms reminiscent to those of KV1.1 knockouts. Herein, we critically evaluate the molecular and biophysical characteristics of the KV1.1 protein in comparison with others and discuss their role in the greater penetrance of KCNA1 mutations in humans leading to the neurological signs of episodic ataxia type 1 (EA1). Future research and interpretation of emerging data should afford new insight towards a better understanding of the role of KV1.1 in integrative mechanisms of neurons and synaptic functions under normal and disease conditions.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Kcna1 ; Dendrotoxin – K ; Episodic Ataxia 1 (ea1) ; Hetero-tetramer ; Low-threshold Potassium Channel ; Synaptic Integration; Episodic Ataxia Type-1; Gated Potassium Channels; Axon Initial Segment; Kv Beta 2; Rat-brain; Alpha-subunit; Surface Expression; Mammalian Brain; Bovine Brain; Xenopus-oocytes
Sprache
Veröffentlichungsjahr 2016
HGF-Berichtsjahr 2016
ISSN (print) / ISBN 0163-7258
e-ISSN 1879-016X
Quellenangaben Band: 159, Heft: , Seiten: 93-101 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Oxford
Begutachtungsstatus Peer reviewed
POF Topic(s) 30205 - Bioengineering and Digital Health
30202 - Environmental Health
Forschungsfeld(er) Enabling and Novel Technologies
Radiation Sciences
PSP-Element(e) G-505500-001
G-500200-001
Scopus ID 84959499901
PubMed ID 26825872
Erfassungsdatum 2016-02-01