AAT1 — Triticum turgidum subsp. durum

Summary

TRITD4AV1G202200 (symbol AAT1) on durum wheat chromosome 4A encodes a protein with a CAT_C domain and an AA/rel_permease1 domain, and is associated with basic amino acid permease activity, L-lysine and L-glutamate transmembrane transporter activity, and amino acid permease activity. The gene is associated with L-arginine import, basic amino acid transport, cellular amino acid homeostasis, H₂O₂ biosynthetic process, and response to nematodes. It localizes to the nuclear envelope, tonoplast, endoplasmic reticulum, mitochondria, and plasmalemma. Associations with CAT2 and CAT3 link AAT1 to leaf senescence, stomatal closure, drought tolerance, cold tolerance, seed dormancy, salt tolerance, oxidative stress tolerance, hydrogen peroxide accumulation, and circadian rhythm. Studies of related genes in other species connect the family to vacuolar amino acid transport, photorespiratory stress tolerance, and hypersensitive cell death.