PR5 — Nicotiana attenuata

Summary

A4A49_11492 (NaPR5) in Nicotiana attenuata encodes a pathogenesis-related protein 5, a member of the thaumatin-like superfamily with glucan endo-1,3-beta-D-glucosidase activity and IgE binding capacity. The gene is associated with systemic acquired resistance, defence responses to fungi, programmed cell death, and responses to salicylate, ethylene, abscisic acid, and salinity. It is linked to posttranscriptional regulation of gene expression, cell wall biogenesis, ethylene anabolism, secretion, and homeostasis. The product localises to the apoplast and extracellular space. NaPR5 has also been connected to leaf curling. Related genes in other species link the family to glucan endo-1,3-beta-glucosidase activity (EC 3.2.1.39).