ERD2 — Oryza sativa Indica Group

Summary

BGIOSGA010330 (OiERD2, also known as HSP70-2) on chromosome 3 of Indica rice encodes a member of the Hsp70 family, characterized by an HSP70 peptide-binding domain and ATPase nucleotide-binding domain. The product exhibits multiple molecular functions including ATP-dependent protein folding chaperone activity, calcium-dependent phospholipid binding, DXP-synthase activity, and D-glucose binding. It is associated with diverse biological processes such as cell glucose homeostasis, cytosol-to-ER transport, RuBisCO assembly, mitochondrial protein import, and responses to humidity, salicylate, and oomycetes. The gene is linked to agronomically important traits including grain yield per plant, spikelet fertility, grain filling period, photosynthetic ability, biomass yield, carotenoid content, and reproductive growth time. It has also been connected to seedling phenotypes, temperature and salt responses, chilling tolerance, and pathogen resistance.