FEATURES

FAMILY

DESCRIPTION

Also known as KAT1_ARATH, KAT1. Highly selective inward-rectifying potassium channel. This voltage-gated channel could mediate long-term potassium influx into guard cells leading to stomatal opening. Assuming opened or closed conformations in response to the voltage difference across the membrane, the channel is activated by hyperpolarization. The channel activity is enhanced upon external acidification. Also permeable to ammonium ions. Blocked by tetraethylammonium and barium ions. The potassium channel is probably composed of a homo- or heterotetrameric complex of pore-forming subunits. May interact with AKT2 and KAT2 (Probable). Interacts with SLAC1 and SLAH3 (PubMed:27002025).

EXTERNAL LINKS

uniprot
enzyme classification

KAT1

Potassium channel KAT1

KAT1

Molecular Synopsis