HCF164 — Brassica juncea

Summary

BJUA01G42080S (BjHCF164) on chromosome A01 of Indian mustard encodes a thioredoxin-domain protein of the TxlA/HCF164 family. The gene product is associated with NAD(P)H dehydrogenase (quinone) and oxidoreductase activities acting on sulfur-group donors with disulfide as acceptor, and with protein binding. It localises to the thylakoid lumen, chloroplast thylakoid membrane and plastid. BjHCF164 is linked to cytochrome b6f complex assembly, photosystem II assembly, homeostasis, and response to metal. Associations include photosynthetic ability, osmotic response sensitivity, electron transfer, cytochrome b6f assembly, severe photoautotrophic growth defect with PSII depletion, and osmotic stress tolerance. Studies of related genes in other species connect the family to photoinhibition resistance, reactive oxygen species homeostasis, and photosynthetic yield.