PR1 — Oryza sativa Japonica

Summary

OsPR1 (OS02G0472500) on rice chromosome 2 encodes a protein containing a CAP (cysteine-rich secretory protein, antigen 5, and pathogenesis-related 1) domain, placing it in the V5 allergen-like and CRISP-related families. The protein exhibits cytokine activity and protein binding. OsPR1 is associated with immune response activation, cytokine production, regulation of hormone levels, and priming of cellular response to stress. It is linked to defense responses, including systemic acquired resistance, induced systemic resistance, and responses to pathogens, herbivores, and insect egg deposition. Associations with salicylic acid, jasmonic acid, ethylene, and gibberellin signaling are noted, as well as with cadmium and salt tolerance. The gene is also connected to agronomic traits such as grain yield, grain size, plant height, chlorophyll content, anthocyanin content, and pigment-related processes. OsPR1 localizes to the secretory vesicle, vacuole, plant-type cell wall, and extracellular space.