AMY1 — Cucumis melo

Summary

MELO3C012071.2, designated CmAMY1, encodes an alpha-amylase on melon chromosome 11. The protein contains a GH13 catalytic domain and is also annotated with SUMO transferase activity, SUMO binding, and calcium ion binding. CmAMY1 is associated with starch and sucrose metabolism, including sucrose breakdown, and with fruit development and ripening. It is linked to sugar content, respiration rate, abscisic acid sensitivity, and flowering time. The protein localises to the apoplast, chloroplast stroma, cytosol, and nucleus. Associations with stress response, starch degradation, stomatal opening, osmotic stress tolerance, and defense gene expression have been reported. Related genes in other species are linked to transitory starch breakdown and osmotic stress response, and to immune response.