SUC1 — Pisum sativum

Summary

PSAT1G098880 (SUC1, also known as SUT2) on garden pea chromosome 1LG6 encodes a protein with domains including Suc_symporter_pln, MFS_dom, and MFS_trans_sf, and is annotated with sucrose:proton symporter activity, maltose:proton symporter activity, arbutin, salicin, and biotin transmembrane transporter activities, as well as microtubule motor activity, MEKK activity, CDK activity, and protein kinase activity. The gene is associated with phloem sucrose loading, glucoside and maltose transport, proton transmembrane transport, sucrose metabolism, and starch anabolism. It has been linked to embryo sac cellularization, cytokinesis by cell plate formation, and asymmetric cell division. Agronomically, SUC1 is associated with grain yield, grain size, unfilled grain number, sucrose content, photosynthetic rate, drought tolerance, root morphology, seed growth and development, and plant growth and development traits. Studies of related genes in other species connect the family to phloem loading, carbon partitioning, seed development, and biotin transport.