PDE1B TR-FRET BioAssay™ Kit

Phosphodiesterases (PDEs) play an important role in dynamic regulation of cAMP and cGMP signaling. PDE1B is a calcium/calmodulin-dependent cyclic nucleotide phosphodiesterase that is highly expressed in the striatum. It plays a physiological role in the central nervous system, and PDE1B activity has been linked to impaired cognition and spatial learning. ||The PDE1B TR-FRET BioAssay™ Kit is designed for identification of inhibitors of PDE1B using TR-FRET (Time Resolved Fluorescence Resonance Energy Transfer) technology. The assay is based on the generation of FAM-labeled nucleotide monophosphates by the PDE1B. These phosphate groups bind to terbium-labeled nanoparticles, resulting in energy transfer from the terbium to the FAM, which emits a fluorescent signal at 520 nm. The change in fluorescent intensity can be easily measured using a fluorescence plate reader. The PDE1B TR-FRET Assay Kit comes in a convenient 96-well format, with purified PDE1B enzyme, fluorescently labeled PDE1B substrate (cAMP), binding agent, and PDE assay buffer for 100 enzyme reactions. Using this kit, only two simple steps on a microtiter plate are required for the PDE1B activity assay. First, the fluorescent-labeled cAMP is incubated with a sample containing PDE1B for 1 hour. Second, a binding agent and a terbium donor are added to the reaction mix and incubated for 30 minutes. Then, fluorescence intensity can be measured using a fluorescence reader. ||Applications:|Great for screening small molecular inhibitors for drug discovery and HTS applications.||Components:|PDE1B recombinant enzyme, 1x1ug|FAM-Cyclic-3’, 5’-AMP: 20um, 1x20ul|PDE Assay buffer, 1x25ml|Tb donor, 1x30ul|Binding Agent, 1x20ml|Binding Buffer A, 1x20ml|Binding Buffer B, 1x20ml|Black, low binding NUNC microtiter plate, 1 plate||Storage and Stability:|Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for at least 6 months For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.