Recombinant full-length human GSK3 beta was expressed by baculovirus in Sf9 insect cells using an N-terminal GST tag. GSK3 beta is a serine-threonine protein kinase that was originally identified as the kinase that phosphorylates and inhibits glycogen synthase. GSK3 beta is ubiquitously present in human tissues and implicated in the regulation of several physiological processes, including the control of glycogen and protein synthesis by insulin, modulation of the transcription factors AP-1 and CREB. Transient transfection of human GSK3 beta into Chinese hamster ovary cells stably transfected with individual human tau isoforms leads to hyperphosphorylation of tau at all the sites investigated with phosphorylation-dependent anti-tau antibodies. ADP-Glo Kinase Assay is a luminescent kinase assay that measures ADP formed from a kinase reaction; ADP is converted into ATP, which is a substrate in a reaction catalyzed by Ultra-Glo Luciferase that produces light. The luminescent signal positively correlates with ADP amount and kinase activity. The assay is well suited for measuring the effects chemical compounds have on the activity of a broad range of purified kinases, making it ideal for both primary screening as well as kinase selectivity profiling. The ADP-Glo Kinase Assay can be used to monitor the activity of virtually any ADP-generating enzyme (e.g., kinase or ATPase) using up to 1mM ATP. Kinase Enzyme System contains: Kinase: GSK3 beta, 10ug (Human, recombinant full-length). MW: ~73kDa. Substrate: GSK3 Substrate (YRRAAVPPSPSLSRHSSPHQ(pS)EDEEE); derived from human muscle glycogen synthase 1 (amino acid 636-661). Other: Reaction Buffer, DTT. GSK3 beta NCBI Database Entry: www.ncbi.nlm.nih.gov/gene/2932/. Visit www.promega.com/kinase/ to see all Kinase Enzyme Systems.
