PR1 — Brassica oleracea

Summary

BoPR1, located on chromosome 3 of cabbage (Brassica oleracea), encodes a protein belonging to the CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1) superfamily, containing a CAP domain and a CRISP-related region. The product is annotated with cytokine activity and protein binding functions. BoPR1 is associated with immune response activation, defense against other organisms, cell death, jasmonic acid signaling, and glucosinolate biosynthesis, particularly indole glucosinolates. It is associated with systemic acquired resistance, salicylic acid signaling, and resistance to pathogens including Rhizoctonia solani, Pseudomonas syringae, and Verticillium dahliae, as well as with responses to cadmium, salt, and acid rain. The protein localizes to the extracellular space, plant-type cell wall, vacuole, and secretory vesicles. Studies of related genes in other species link the family to disease resistance, systemic immunity, and abiotic stress tolerance.