PR1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0661680, designated HvPR1, encodes a pathogenesis-related protein 1 containing a CAP domain and V5 allergen-like motif. This gene is associated with induced systemic resistance, systemic acquired resistance, hypersensitivity, immune response, defense response to other organisms, leaf senescence, embryogenesis, proteolysis, and signal transduction. The product localizes to the extracellular region and vacuole. HvPR1 is linked to hydrogen peroxide content. Studies of related PR-1 family members in other species connect the family to defense signaling and stress responses, though these specific roles are not yet established for HvPR1 itself.