NPR1 — Brassica juncea

Summary

BJUA08G17580S (NPR1) on chromosome A08 of Indian mustard encodes a transcription cis-regulatory region binding protein with protein homodimerization activity and zinc binding capability. The protein contains BTB/POZ, ankyrin repeat, and NPR1/NIM1-like domains. This gene is associated with regulation of salicylic acid and jasmonic acid mediated signaling pathways, systemic acquired resistance, induced systemic resistance, defence responses to bacteria and fungi, response to herbivore, nodulation, floral organ abscission, stipule development, leaf and flower development, nuclear import, and responses to salinity and thirst. It localizes to the nucleus, cytoplasm, plasma membrane, and nuclear bodies. Associations with plant height, panicle length, leaf length, drought tolerance, and water use efficiency have been noted. Studies of related genes in other species link the family to additional developmental regulators such as BOP and NOOT.