KC1 — Solanum tuberosum

Summary

PGSC0003DMG400024168, also known as KC1 or SKT2 on potato chromosome 10, encodes a protein with domains including KHA_dom, KAT/AKT, and ion_trans_dom, and is annotated with outward rectifier potassium channel activity and ion transporter activity. This gene is associated with the regulation of membrane potential, monoatomic ion homeostasis, and stomatal opening, as well as responses to basic pH, hypotonic salinity, and wound healing. It has been linked to numerous agronomically important traits including yield, water use efficiency, transpiration rate, photosynthetic rate, leaf necrosis tolerance, root hair length, lateral root length, and responses to water stress, aluminum, and cadmium. The encoded protein localizes to the monoatomic ion channel complex, apical plasma membrane, pollen tube tip, and vesicle, and is associated with potassium translocation, stomatal regulation, and programmed cell death. Studies of related genes in other species link the family to guard cell ion flux, stomatal closure, seed germination, and sodium tolerance.