KC1 — Sorghum bicolor

Summary

SbKC1 (SORBI_3003G278200) on sorghum chromosome 3 encodes a potassium channel KAT3 protein with a cyclic nucleotide-binding domain, belonging to the KAT/AKT family of voltage-sensitive potassium channels. The gene product exhibits Kir channel activity and identical protein binding, and is associated with ROS metabolic process, stomatal movement, and ion homeostasis. It localises to the monoatomic ion channel complex and ER membrane. SbKC1 is associated with salt tolerance (SALTTL). Studies of related genes in other species connect the broader potassium channel family to similar stress responses, though these associations are not yet established for SbKC1 itself.