KC1 — Solanum tuberosum

Summary

StKC1 (KC1) encodes a voltage-sensitive potassium channel with Kir channel activity, belonging to the KAT/AKT family and containing KHA, ion transport, and cNMP-binding domains. In potato, this gene is associated with wound healing, TOR signaling, pH reduction, jasmonic acid anabolism, nitric oxide storage, seed germination, and signal transduction. It localizes to the monoatomic ion channel complex and ER membrane. StKC1 is associated with potassium uptake, stomatal opening, drought tolerance, and salt tolerance. Studies of related genes in other species, including AKT1, connect the family to potassium transport and stress responses, though these associations are not yet established in potato.