PINB — Triticum aestivum

Summary

TRAESCS7D02G504800 (symbol PINB) on bread wheat chromosome 7D encodes a protein with bifunctional inhibitor/lipid transfer protein/seed storage domains, including Glia_glutenin, and exhibits serine-type endopeptidase inhibitor activity, nutrient reservoir activity, and toxin activity. The gene is associated with endosperm development, flower development, syngamy, and defence response to bacteria, as well as pre-harvest sprouting, starch breakdown, and the TCA cycle. It is linked to numerous grain and seed traits, including seed hardness, texture, vitreousness, protein content, starch content and digestibility, flour and starch yield, test weight, grain weight and width, seed size, germination rate, and sprouting tolerance. The product localises to the extracellular region and membrane. Studies of related genes in other species connect the family to grain tenderness and thickness.