USP — Lactuca sativa

Summary

LsUSP, encoded by the gene LSAT_V11C200087620 on chromosome 2 of garden lettuce (Lactuca sativa), belongs to the universal stress protein UspA family, which contains a Rossmann-like α/β/α fold. The gene is associated with protein phosphorylation, response to heat, and response to abscisic acid, and its product localises to the cytosol, cytoplasm, and nucleus. LsUSP is linked to flowering time. Studies of related genes in other species connect the UspA family to drought tolerance, starch and protein content, stomatal opening, flowering time, seed size and germination, pollen fertility, and circadian rhythm.