RLK1 — Capsicum annuum

Summary

CaRLK1 (RLK1) on pepper chromosome 1 encodes a receptor-like serine/threonine-protein kinase with a G-type lectin kinase domain, bulb-type lectin domain, and protein kinase ATP-binding site. The enzyme has protein serine/threonine kinase activity (EC 2.7.11.1), binds ATP, calmodulin, and sugar, and shows identical protein binding. It is associated with defense response, response to other organisms, cell death, metabolic burst, and virus-induced PTGS. The gene is linked to pollen recognition and rejection of self pollen, as well as cell cycle processes including G1 phase, S phase, anaphase, and cell division. The product localizes to the membrane and extracellular region. Studies of related genes in other species link the family to self-incompatibility.