SAR2 — Solanum lycopersicum

Summary

SlSAR2 (SOLYC01G060130.3) on tomato chromosome 1 encodes a small GTPase of the SAR1 family, possessing GTPase activity, GTP binding, G protein activity, and phospholipase activator activity. The protein localises to COPII vesicle coats, ER exit sites, Golgi membranes, and the cytosol, and is associated with vesicle formation, membrane organisation, secretion, protein import, and hormone metabolism. SlSAR2 is associated with drought tolerance, chlorophyll content, and stem elongation. Additional associations include meiotic exit, anaphase, photosynthetic electron transport, and RNA surveillance. Related genes in other species link the family to GTPase activity (EC 3.6.5.2).