PR5 — Solanum lycopersicum

Summary

SlPR5 (SOLYC04G081560.3) on tomato chromosome 4 encodes a thaumatin-like protein belonging to the osmotin/thaumatin-like superfamily, with glucan endo-1,3-beta-D-glucosidase activity and IgE binding capacity. The gene is associated with diverse biological processes including regulation of proline, lycopene, salicylic acid, auxin, chlorophyll, and ethylene anabolism, as well as ergosterol anabolism, fermentation, photoperiodism, induced systemic resistance, and response to host organisms. It is linked to apoplast and extracellular localization. Trait associations include acid and abscisic acid sensitivity, fruit shape, sugar and protein content, seed size, stomatal opening, and salt tolerance. Related genes in other species connect the thaumatin-like protein family to glucan endo-1,3-beta-glucosidase activity.