Rpg1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0635950, designated Rpg1 on barley chromosome 7H, encodes a transmembrane receptor protein serine/threonine kinase with protein kinase and kinase-like domains. The gene product exhibits coreceptor, signaling receptor, and protein serine kinase activities, binds ATP, steroids, and SNARE proteins, and forms homo- and heterodimers. Rpg1 is associated with the upregulation of innate immune response, defense responses to fungi and bacteria, immune response, brassinosteroid-mediated signaling, detection of brassinosteroid stimulus, hormone-mediated signaling, response to light stimulus, microtubule bundling, regulation of growth, somatic embryogenesis, skotomorphogenesis, seedling development, post-embryonic development, cell differentiation, and rejection of self pollen. It localizes to the plasma membrane, membrane, endosome, and macromolecular complexes. The gene is linked to stem rust resistance. Related genes in other species are linked to protein kinase activity (EC 2.7.11.-) and heterosis.