MKK3 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0537390 (MKK3) on barley chromosome 5H encodes a protein with a protein kinase domain, annotated with MAPKK activity (EC 2.7.12.2), protein serine/threonine kinase activity, protein tyrosine kinase activity, and DNA-binding transcription factor activity. The gene is associated with the MAPK cascade, regulation of defense response to insect, induced systemic resistance mediated by ethylene and jasmonic acid signaling, positive regulation of leaf senescence, and downregulation of stomatal opening. It is linked to grain dormancy, sprouting tolerance, drought tolerance, salt tolerance, photosynthetic rate, flowering time, disease tolerance, seed protein content, and shoot elongation under submergence. The encoded protein localizes to the nucleus, cytoplasm, plasma membrane, and nucleolus. Related genes in other species are linked to drought stress resistance, resistance to fungal pathogens, insect herbivory resistance, and phosphate deficiency response.