APS2 — Cucumis melo

Summary

MELO3C003762.2, also known as CmAPS2 or CmASA1, encodes an ATP:sulfate adenylyltransferase on melon chromosome 5. The product contains a sulfate adenylyltransferase domain and a sulfurylase catalytic domain, and it catalyses the reaction of sulfate with ATP to form adenosine 5'-phosphosulfate and diphosphate. This gene is associated with sulfate assimilation, cellular response to sulfate starvation, starch and sucrose metabolism, fruit development and ripening, and localises to the chloroplast stroma and nucleus. It has been linked to sugar content, adventitious and lateral root formation, primary root elongation, root regeneration and growth, auxin and tryptophan biosynthesis, phytoalexin biosynthesis, and PIN2 endocytosis. Studies of related genes in other species link the family to de novo root organogenesis, ATP sulfurylase activity, camalexin biosynthesis, and defense response.