SHD — Solanum lycopersicum

Summary

Solyc12g015880.2 (SHD, also known as HSC80) encodes a heat shock protein 90 family member, characterized by Hsp90 and HATPase domains, and annotated with ATP-dependent protein folding chaperone activity. In tomato, this gene is associated with responses to yellow leaf curl virus, salinity tolerance, heavy metal tolerance, root biomass, and developmental regulation. It is linked to diverse biological processes including response to abiotic stimulus, cellular response to unfolded protein, vesicle organization, and metabolic compound salvage. The encoded protein localizes to multiple cellular compartments such as the chloroplast outer membrane, ER lumen, and perinuclear region. Additional associations include floral organ morphology, fruit ripening, seedling vigor, leaf water potential, seed set, submergence tolerance, bacterial and viral disease responses, and starch grain synthesis. Studies of related genes in other species link the HSP90 family to thermotolerance, broad-spectrum disease resistance, chloroplast function, and embryo development.