APS1 — Glycine max

Summary

GmAPS1 (GLYMA_10G242600V4) on soybean chromosome 10 encodes a sulfate adenylyltransferase, an enzyme with ATP:sulfate adenylyltransferase and ADP-glucose pyrophosphorylase (ADGase) activities, and also possesses protein serine/threonine kinase activity. The protein localizes to the chloroplast envelope and stroma. GmAPS1 is associated with sulfur metabolism, sulfate accumulation and uptake, and cellular responses to sulfate starvation. It is linked to starch grain synthesis, starch content, and starch cycling, as well as photosynthetic capacity. The gene has been connected to amino acid and protein content, root length, and responses to high and low temperature stress. Associations with cotyledon development, phloem or xylem histogenesis, and procambium histogenesis have also been observed. Studies of related genes in other species link the family to sulfate assimilation and flowering time.