ER1 — Pisum sativum

Summary

PSAT5G147000 (ER1, also known as PsHAK1 or RLCK185) on garden pea chromosome 5LG3 encodes a protein with leucine-rich repeat domains and serine/threonine kinase activity, annotated as a transmembrane receptor protein serine/threonine kinase with histone H2AS1 kinase activity, coreceptor activity, and steroid, SNARE, and protein binding. The gene is associated with brassinosteroid sensitivity, defense response, herbivore defense, root elongation, shade avoidance, and reduced brassinolide response. It is linked to flower morphogenesis, stomatal complex development, sporulation, somatic embryogenesis, and regulation of asymmetric cell division. The product localises to the plasma membrane, nucleus, endosome, plasmodesma, and cytosol. Related genes in other species are associated with brassinosteroid signaling and root elongation, and herbivore resistance phenotypes have been observed in Arabidopsis.