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XB-ART-26432
EMBO J 1989 Nov 01;811:3235-44. doi: 10.1002/j.1460-2075.1989.tb08483.x.
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Molecular basis of functional diversity of voltage-gated potassium channels in mammalian brain.

Stühmer W, Ruppersberg JP, Schröter KH, Sakmann B, Stocker M, Giese KP, Perschke A, Baumann A, Pongs O.


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Cloning and sequencing of cDNAs isolated from a rat cortex cDNA library reveals that a gene family encodes several highly homologous K+ channel forming (RCK) proteins. Functional characterization of the channels expressed in Xenopus laevis oocytes following microinjection of in vitro transcribed RCK-specific RNAs shows that each of the RCK proteins forms K+ channels that differ greatly in both their functional and pharmacological properties. This suggests that the molecular basis for the diversity of voltage-gated K+ channels in mammalian brain is based, at least partly, on the expression of several RCK proteins by a family of genes and their assembly to homooligomeric K+ channels with different functional properties.

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Species referenced: Xenopus laevis

References [+] :
Baumann, Structure of the voltage-dependent potassium channel is highly conserved from Drosophila to vertebrate central nervous systems. 1988, Pubmed