KC1 — Capsicum annuum

Summary

CaKC1 (T459_03613) on pepper chromosome 1 encodes a potassium channel of the KAT/AKT family, featuring a KHA domain, ion transport domain, and cyclic nucleotide-binding domain, with Kir channel activity and voltage-sensitive potassium channel activity. It is associated with carotenoid anabolism, stomatal movement, and localisation to the monoatomic ion channel complex and ER membrane. The gene is linked to responses to drought, salinity, and abscisic acid (ABA)-mediated signaling, as well as broader abiotic stress responses and hormone signaling pathways. Studies of related genes in other species connect the family to potassium transport and stress tolerance, though these associations are not directly established for CaKC1 itself.