Referenced in: none

Automatically associated channels: Kv2.1

Title: Identification of a gene encoding a hyperpolarization-activated pacemaker channel of brain.

Authors: B Santoro, D T Liu, H Yao, D Bartsch, E R Kandel, S A Siegelbaum, G R Tibbs

Journal, date & volume: Cell, 1998 May 29 , 93, 717-29

PubMed link: http://www.ncbi.nlm.nih.gov/pubmed/9630217

Abstract
The generation of pacemaker activity in heart and brain is mediated by hyperpolarization-activated cation channels that are directly regulated by cyclic nucleotides. We previously cloned a novel member of the voltage-gated K channel family from mouse brain (mBCNG-1) that contained a carboxy-terminal cyclic nucleotide-binding domain (Santoro et al., 1997) and hence proposed it to be a candidate gene for pacemaker channels. Heterologous expression of mBCNG-1 demonstrates that it does indeed code for a channel with properties indistinguishable from pacemaker channels in brain and similar to those in heart. Three additional mouse genes and two human genes closely related to mBCNG-1 display unique patterns of mRNA expression in different tissues, including brain and heart, demonstrating that these channels constitute a widely expressed gene family.