PR1 — Zea mays

Summary

ZM00001EB020340, designated ZmPR1 on maize chromosome 1, encodes a CAP-domain-containing protein of the V5 allergen-like family. The gene product is associated with cytokine activity and protein binding, and is linked to activation of immune response, cytokine production, salicylic acid metabolism, and priming of cellular response to stress. ZmPR1 has been connected to defense responses, including systemic acquired resistance, disease resistance, and responses to herbivores, as well as to traits such as grain yield, plant height, anthocyanin content, total soluble sugar content, and germination rate. Localization evidence places the protein in the secretory vesicle, vacuole, plant-type cell wall, and extracellular space. Studies of related genes in other species link the family to pathogen resistance, salicylic acid-mediated defense, and abiotic stress tolerance.