PR5 — Capsicum annuum

Summary

CaPR5 (T459_32646) on pepper chromosome PGAv.1.6.scaffold942 encodes a thaumatin-like protein with glucan endo-1,3-beta-D-glucosidase activity, capable of IgE and mRNA binding. It is associated with immune responses, including systemic acquired resistance, hypersensitivity, and defence against bacteria, fungi, and viruses. The gene is linked to cell death, metabolic burst, and regulation of anthocyanin biosynthesis. It localises to the apoplast, cell wall, vacuole, plasmodesma, and secretory vesicle. Associations with agronomic traits include plant height, leaf area index, stem diameter, and chlorophyll content. It has been connected to drought and salt tolerance, osmotic stress response, proline accumulation, and resistance to Verticillium dahliae and Pseudomonas syringae. Responses to abscisic acid, ethylene, cadmium, and UV-B are also linked to this gene.