OPT3 — Pisum sativum

Summary

PsOPT3 (PSAT4G003080) on garden pea chromosome 4LG4 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 cation homeostasis, and multicellular organismal iron ion homeostasis. It has been linked to iron homeostasis, acquisition, and mobilization, as well as cadmium distribution and partitioning, and disease resistance. The encoded protein localizes to the plasmodesma, membrane, cytosol, and plasmalemma. Related genes in other species are associated with copper transport, metal transport, iron transport, embryo development, seed iron content, cadmium accumulation in seeds, and metal homeostasis.