PR5 — Solanum tuberosum

Summary

StPR5 (PGSC0003DMG400005748) on potato chromosome 3 encodes a thaumatin-like protein of the osmotin/thaumatin-like superfamily, annotated with glucan endo-1,3-beta-D-glucosidase activity, IgE binding, mRNA binding, and protein binding. In potato, StPR5 is associated with late blight resistance, systemic acquired resistance, defence responses to bacteria and fungi, cell death, and responses to abscisic acid, ethylene, UV-B, cadmium, and viruses. The protein localises to the apoplast, plant-type cell wall, vacuole, plasmodesmata, secretory vesicles, and mitochondria. Additional associations include osmotic stress response, proline accumulation, salt and drought tolerance, insect resistance, and resistance to Verticillium dahliae and Pseudomonas syringae. Studies of related genes in other species link the family to pathogen resistance, induced systemic resistance, herbivore defence, and seed germination under salt stress.