IRT1 — Brassica napus

Summary

BnIRT1 (DARMORV10_A01P11610.1) on chromosome A01 of oilseed rape encodes a ZIP family metal transporter with iron channel activity and transmembrane transporter activities for copper, manganese, zinc, and cadmium ions. It also exhibits phosphoinositide, ubiquitin, mRNA, and protein binding. The gene is associated with metal homeostasis, including iron, zinc, and cadmium accumulation and transport, as well as responses to iron deficiency and chromium stress. It is linked to photosynthetic rate, chlorophyll and carotenoid content, leaf chlorosis, stomatal resistance, germination rate, and plant growth and development traits. Associations extend to pollen germination, cellular response to hypoxia, response to bacteria, and downregulation of abscisic acid signaling. The protein localizes to the plasmalemma, endosome, late endosome membrane, TGN, ESCRT I complex, and nucleus. Related genes in other species link the family to iron uptake, transport, and translocation, as well as nickel and cadmium sensitivity.