SUC1 — Phaseolus vulgaris

Summary

PvSUC1 (PHAVU_004G085594) on chromosome 4 of French bean encodes a protein belonging to the sucrose symporter plant family and the major facilitator superfamily, with annotated sucrose:proton symporter activity, biotin transmembrane transporter activity, arbutin transmembrane transporter activity, salicin transmembrane transporter activity, maltose:proton symporter activity, sugar transmembrane transporter activity, and additional enzyme and molecular function annotations including microtubule motor activity, MEKK activity, CDK activity, microtubule binding, kinase activity, protein kinase activity, and protein serine/threonine kinase activity. The gene is associated with phloem sucrose loading, glucoside transport, maltose transport, sucrose metabolism, proton transmembrane transport, and response to nematode. It is also associated with grain yield, grain size, unfilled grain number, sucrose content, photosynthetic rate, drought tolerance, pollen fertility, stomatal resistance, root thickness, and plant growth and development traits. Localisation evidence connects the product to the tonoplast, plasmodesma, Golgi complex, pollen tube, preprophase band, and stress granule. Studies of related genes in other species link these transporters to phloem loading, carbon partitioning, seed development, anther dehiscence, pollen tube growth, and cold acclimation.