Glucose-1-phosphate adenylyltransferase small subunit, chloroplastic/amyloplastic
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Involved in synthesis of starch. Catalyzes the synthesis of ADP-glucose, a molecule that serves as an activated glycosyl donor for alpha-1,4-glucan synthesis. The chloroplastic isoform 1 is essential for starch synthesis in leaf chloroplasts and the cytosolic isoform 2 for synthesis in seed endosperm.