OPT3 — Pisum sativum

Summary

PsOPT3 (PSAT2G159560) on garden pea chromosome 2LG1 encodes an oligopeptide transporter (OPT) family protein with transition metal ion and oligopeptide transmembrane transporter activity. The gene is associated with xylem-to-phloem iron transport, cellular monoatomic cation homeostasis, and multicellular organismal iron ion homeostasis. It has been linked to iron homeostasis, cadmium distribution and partitioning, iron acquisition and mobilization, and disease resistance. The encoded protein localises to the membrane, plasmodesma, cytosol, and plasmalemma. Related genes in other species connect the family to iron transport, copper transport, metal homeostasis, embryo development, seed iron content, and cadmium accumulation in seeds.