ERD4 — Brassica juncea

Summary

BJUB07G26810S (symbol ERD4, preferred name BjOSCA1.5) encodes a calcium-activated cation channel with protein phosphatase activator and regulator activities, belonging to the CSC1/OSCA1-like family and containing PP2A B56, ARM-like and ARM-type fold domains. In Indian mustard (Brassica juncea) on chromosome B07, this gene is associated with seed germination, meiotic sister chromatid cohesion, signal transduction, activation of salinity response, and response to thirst. It localises to the plasmalemma, chloroplast membrane, cytosol and PP2A complex. Associations with leaf number and drought tolerance have been noted. Studies of related genes in other species link the family to miscellaneous traits and temperature-related phenotypes, though these are not established for BjOSCA1.5 itself.