XB-ART-18670
FEBS Lett
1996 Jan 02;3781:19-26.
Show Gene links
Show Anatomy links
Isolation of an ion channel gene from Arabidopsis thaliana using the H5 signature sequence from voltage-dependent K+ channels.
???displayArticle.abstract???
A degenerate oligonucleotide corresponding to the K+ channel signature sequence (TMTTVGYGD) was used to isolate the genomic and cDNA forms of a new channel gene, AKT3, from Arabidopsis thaliana. The deduced protein sequence has a predicted membrane topography similar to Shaker-like K+ channels. Three distinct modules comprise the carboxyl-terminal half: a nucleotide-binding motif, an ankyrin repeat domain, and a polyglutamate track. Xenopus oocytes injected with cRNA exhibited an inward-rectifying K+ current, demonstrating that the AKT3 polypeptide is a functional transport protein. Two other Arabidopsis K+ transporters (AKT1 and KAT1) share 60% homology with AKT3; together these proteins constitute a family of plant inward-rectifying K+ channels.
???displayArticle.pubmedLink??? 8549795
???displayArticle.link??? FEBS Lett
???displayArticle.grants???
Species referenced: Xenopus laevis
Genes referenced: akt1 ank1 kyat1