Article
Threonine at position 306 of the KAT1 potassium channel is essential for channel activity and is a target site for ABA-activated SnRK2/OST1/SnRK2.6 protein kinase.
The Biochemical journal - 10 Dec 2009
Sato Aiko, Sato Yuki, Fukao Yoichiro, Fujiwara Masayuki, Umezawa Taishi, Shinozaki Kazuo, Hibi Takao, Taniguchi Mitsutaka, Miyake Hiroshi, Goto Derek B, Uozumi Nobuyuki
Abstract excerpt
The Arabidopsis thaliana K+ channel KAT1 has been suggested to have a key role in mediating the aperture of stomata pores on the surface of plant leaves. Although the activity of KAT1 is thought to be regulated by phosphorylation, the endogenous pathway and the primary target site for this modification remained unknown. In the present study, we have demonstrated that the C-terminal region of KAT1 acts as a...
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