CYB5 — Brachypodium distachyon

Summary

BRADI_2G39310V3 (CYB5) in Brachypodium distachyon encodes a protein containing a Cyt_B5-like heme/steroid-binding domain. The product is associated with sulfite oxidase, nitrate reductase (NADPH), and cytochrome-b5 reductase activities, as well as molybdenum cofactor, FAD, and heme binding. It is linked to nitrate assimilation, sulfur metabolism, nitric oxide anabolism, cold acclimation, cellular homeostasis, and response to light stimulus, and localises to the ER membrane. The gene has been connected to cold tolerance. Studies of related genes in other species link the family to nitrate reduction (EC 1.7.1.1).