PR5 — Solanum lycopersicum

Summary

SlPR5 (SOLYC08G080640.2) 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, cell wall thickening, lignin metabolism, and salicylic acid anabolism. It has been linked to lycopene and ergosterol anabolism, proline regulation, and response to host. Localization evidence links the product to the vacuole, apoplast, and cytoplasm. Trait associations include fruit shape, sugar content, protein content, seed size, stomatal opening, and sensitivity to abscisic acid and acid. Studies of related genes in other species link the family to endo-1,3(4)-beta-glucanase activity (EC 3.2.1.6).