SUB1 — Oryza sativa Indica Group

Summary

BGIOSGA003258 (SUB1, OiSUB1) on chromosome 1 of Indica rice encodes an uncharacterized protein with serine-type peptidase activity, serine-type endopeptidase activity, protein homodimerization activity, and identical protein binding. The gene is associated with self-proteolysis, proteolysis, fermentation, peptide breakdown, regulation of cell wall pectin metabolism, plant-type cell wall modification, starch metabolism, chlorophyll breakdown, and positive regulation of gene expression. It is linked to defense response, response to wounding, signal transduction, upregulation of defense response to insects, and responses to symbiotic bacteria and fungi, including arbuscular mycorrhizae formation. The product localizes to the apoplast and extracellular region. SUB1 has been connected to submergence tolerance, salinity tolerance, grain yield, panicle weight, and panicle length. Related genes in other species link the family to serine-type endopeptidase activity (EC 3.4.21.25).