PR1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0661640, designated HvPR1, encodes a pathogenesis-related protein PRB1-2 belonging to the CAP superfamily with a V5 allergen-like domain. In barley, this gene is associated with induced systemic resistance, systemic acquired resistance, immune response, defense response to other organisms, leaf senescence, embryogenesis, proteolysis, and signal transduction. The encoded protein localises to the extracellular region and vacuole. HvPR1 is also linked to hydrogen peroxide content. Studies of related genes in other species, including PR-1 and PR-1C, connect the family to similar defense and stress responses.