PR5 — Nicotiana attenuata

Summary

A4A49_26377 (PR5, also known as TL1) in coyote tobacco (Nicotiana attenuata) encodes a protein with a thaumatin family signature and belonging to the osmotin/thaumatin-like superfamily, and is annotated with glucan endo-1,3-beta-D-glucosidase activity. The gene is associated with defence response to bacteria, response to virus, systemic acquired resistance, programmed cell death, and cell death. It is linked to response to ethylene, response to UV-B, response to cadmium, and osmotic stress response, and to regulation of anthocyanin anabolism, ethylene anabolism, regulation of gene expression, and posttranscriptional regulation of gene expression. The protein localises to the apoplast, plant-type cell wall, plant-type vacuole, plasmodesma, secretory vesicle, and membrane. Associations include disease resistance, insect resistance, salt tolerance, drought tolerance, and resistance to Verticillium dahliae and Pseudomonas syringae. Studies of related genes in other species link the family to pathogen resistance, induced systemic resistance, and seed germination under salt stress.