ASP — Solanum tuberosum

Summary

PGSC0003DMG400015219, designated StASP (also known as StKTI5), encodes a Kunitz-type protease inhibitor family protein with peptidase inhibitor activity, including alpha-amylase and serine-type endopeptidase inhibitor activities. The gene is associated with negative regulation of peptidase activity, regulation of hormone levels, response to abiotic stimulus, and response to insects. It has been linked to polysaccharide and carbohydrate metabolism, the mevalonate pathway, phytoalexin biosynthesis, terpene and sterol anabolism, proteolysis, secretion, and ribosome biogenesis. The encoded protein localises to the secretory vesicle, apoplast, plant-type cell wall, and endoplasmic reticulum. StASP is associated with starch yield, starch content, sugar content, soluble protein content, and protein content. Studies of the Arabidopsis relative AtKTI5 connect the family to spider mite resistance.