TL1 — Triticum aestivum

Summary

TRAESCS4B02G236700, designated TL1 or TaPR-5 on bread wheat chromosome 4B, encodes a thaumatin-like protein belonging to the osmotin/thaumatin-like superfamily and exhibits glucan endo-1,3-beta-D-glucosidase activity and IgE binding. The gene is associated with defence responses to fungi, including powdery mildew resistance observed for PR-5 in wheat, as well as with killing of cells of other organisms, response to abscisic acid, and epigenetic regulation of gene expression. It is linked to wheat powdery mildew disease response and grain weight. The protein localises to the apoplast and extracellular space. Studies of related genes in other species connect the family to glucan endo-1,3-beta-D-glucosidase activity (EC 3.2.1.39).