PIN1 — Pisum sativum

Summary

PsPIN1 (PSAT1G032680) on garden pea chromosome 1LG6 encodes a protein with auxin efflux carrier and auxin efflux transmembrane transporter activity, as well as inositol-1,4-bisphosphate 1-phosphatase activity, phosphatidylinositol phosphate binding, and clathrin binding. It is associated with auxin signalling, acropetal auxin transport, regulation of cell polarization, endocytic recycling, and retrograde transport from endosome to Golgi. The gene is linked to seed development, regulation of seed size, reproductive structure development, and growth and developmental processes. It has been connected to traits including gravity response, phototropism, leaf vein morphology, shoot growth angle, lateral root number, root hair length, seed set, and responses to brassinosteroids, cytokinins, ethylene, and osmotic stress. Related genes in other species are linked to polar auxin transport, leaf vascular patterning, flower formation, root meristem growth, and phototropism.