Guanosine 5’-diphosphate (GDP) is a purine nucleotide and biosynthetic precursor of guanosine 5’-triphosphate .1It has been used to study the conformations of GTPases.2GDP (100 μM) activates sulfonylurea receptor 2B (SUR2B) linked to the inward-rectifier potassium channel 6.1 (Kir6.1) in HEK293T cells in a patch-clamp assay.3

Guanosine 5’-diphosphate (sodium salt hydrate)

PBS (pH 7.2):10 mg/mL
Powder: -20°C for 3 years
In solvent: -80°C for 2 years