PR5 — Solanum lycopersicum

Summary

SlPR5 (SOLYC08G080670.1) encodes a thaumatin-like protein belonging to the osmotin/thaumatin-like superfamily, with beta-glucanase and endo-1,3(4)-beta-glucanase activity. This tomato gene on chromosome 8 is associated with antifungal innate immune response, induced systemic resistance, and the regulation of proline, lycopene, salicylic acid, auxin, ethylene, and chlorophyll anabolism. It is linked to ergosterol anabolism, spore germination, fermentation, mRNA breakdown, photoperiodism, metabolic burst, and killing of cells of other organisms. The protein localizes to the vacuole, apoplast, extracellular space, and cytoplasm. SlPR5 has been connected to fruit shape, sugar content, protein content, seed size, stomatal opening, and sensitivity to acid and abscisic acid. Related genes in other species link the family to endo-1,3(4)-beta-glucanase activity.