PR5 — Capsicum annuum

Summary

CaPR5 (T459_10725) on pepper chromosome 3 encodes a pathogenesis-related protein 5, a thaumatin-like protein with glucan endo-1,3-beta-D-glucosidase activity and IgE binding capacity. The product is localised to the apoplast and extracellular space. CaPR5 is associated with defence responses including innate immunity, defence response to fungi, hypersensitivity, metabolic burst, cell death, immune response, virus-induced PTGS, and killing of cells of other organisms. It is also linked to signal transduction and response to abscisic acid. The gene has been connected to agronomic traits including plant height, stem diameter, leaf area index, and chlorophyll content. Related genes in other species link the family to glucan endo-1,3-beta-glucosidase activity.