PGM — Cucumis sativus

Summary

CsPGM (CSA_5G172280) on cucumber chromosome 5 encodes a phosphoglucomutase with alpha-D-phosphohexomutase domains and phosphoglucomutase activity, requiring magnesium or metal binding. The enzyme is associated with starch and sucrose biosynthesis, carbohydrate metabolism, tetrapyrrole and glucose metabolism, cell redox homeostasis, and protein synthesis. It has been linked to fruit development, cell growth and division, detection of gravity, and response to cold. The protein localises to the chloroplast stroma and envelope, stromule, apoplast, and cytosol. In cucumber, the gene is associated with virus symptom severity. Associations also include photosynthetic rate and capacity, starch metabolism, leaf growth pattern, juvenile phase length, gravitropic and hydrotropic responses, seed oil content, raffinose and hexose accumulation, and cold response. Studies of related genes in other species link the family to starch synthesis and deficiency.