PINB — Triticum aestivum

Summary

TRAESCS7B02G431200 (symbol PINB) on bread wheat chromosome 7B encodes a protein with bifunctional inhibitor/lipid transfer protein/seed storage helical domains, belonging to the Glia_glutenin family. The product possesses serine-type endopeptidase inhibitor activity, nutrient reservoir activity, and toxin activity. This gene is associated with grain texture, grain hardness, kernel hardness, grain tenderness, seed vitreousness, seed hardness, seed texture, flour yield, starch yield, starch digestibility, grain thickness, fruit size, sprouting tolerance, seed protein content, test weight, grain width, seed weight, grain protein content, starch content, seed maturation, germination rate, seed size, protein content, grain weight, and pre-harvest sprouting. It is linked to endosperm development, flower development, defence response to bacteria, starch breakdown, the TCA cycle, syngamy, and DNA recombination. The protein localises to the extracellular region and membrane. Studies of related genes in other species link the family to bifunctional inhibitor and allergen domains.