Functional Assays

The PARP3 Chemiluminescent Assay Kit is designed to measure PARP3 activity for screening and profiling applications. The PARP3 assay kit 96-well format contains enough purified PARP3 enzyme, histone mixture, activated DNA template, PARP assay buffer and necessary reagents for 100 or 400 enzyme reactions. The key to the PARP3 Chemiluminescent Assay Kit is the biotinylated NAD⁺ and involves 3 reactions. First, histone proteins are coated on a plate. Next, a biotinylated NAD⁺ mix (termed PARP Substrate Mixture) is incubated with the enzyme and an activated DNA template. Finally, streptavidin-HRP is added, followed by ELISA ECL substrate to produce a chemiluminescence signal that can be measured using a chemiluminescence plate reader. *NOTE: As of April 2022, this protocol has been re-optimized for performance. Previous versions of this kit are available upon request.

This kit is used for the fast quantification of Human IgG in serum,plasma and cell supernatant samples. (Homogenous Assay, no wash step, quantitative assay)

This kit is used for the fast quantification of Human PSA in in serum,plasma and cell supernatant samples. (Homogenous Assays, no wash step, quantitative assay)

The PDE3A TR-FRET Assay Kit is designed to provide fast and easy identification of inhibitors of PDE3A (phosphodiesterase 3A) using Time-Resolved Fluorescence Resonance Energy Transfer (TR-FRET). The PDE3A TR-FRET Assay Kit comes in a convenient 96-well or 384-well format, with enough recombinant purified PDE3A (amino acids 669-end) enzyme, fluorescently labeled PDE substrate (cAMP), binding agent, and PDE assay buffer for 100 or 384 enzyme reactions. The reaction uses a fluorescein-conjugated (FAM) cyclic monophosphate nucleotide.  Phosphodiesterase PDE3A catalyzes the hydrolysis of the phosphodiester bond in the cyclic monophosphate nucleotide, releasing the phosphate group for binding. The phosphate group binds to a "Binding Agent" (BA) that is recognized by terbium-labeled donor beads. This results in energy transfer from the terbium to FAM, which emits a fluorescent signal at 520 nm. If unbound to the phosphate group, the terbium-labeled beads emit at λ=490 nm. The fluorescent int

The SARM1 Fluorogenic Assay Kit (Hydrolase Activity) is designed to measure NAD⁺ cleavage activity in screening and profiling applications. The SARM1 assay kit comes in a convenient 96-well or 384-well format, with enough recombinant human SARM1 enzyme, its substrate N6-etheno-NAD (e-NAD), and SARM1 assay buffer for 100 or 400 enzyme reactions. In addition, the kit includes a SARM1 inhibitor (DSRM-3716) for use as a control inhibitor. Hydrolase activity of SARM1 is measured by following the hydrolysis of Etheno-NAD to form Etheno-ADPR + nicotinamide. Etheno-NAD is not fluorescent due to internal quenching. Upon hydrolysis by SARM1, nicotinamide is released, leading to an increase in fluorescence signal directly proportional to the enzymatic activity.

The TET2 (Tet Methylcytosine dioxygenase 2) Homogeneous Assay Kit is designed to measure the activity of TET2 for screening and profiling applications. The TET2 Homogeneous Assay Kit comes in a convenient AlphaLISA® format, with enough biotinylated TET2 substrate, TET2 assay buffer, and purified TET2 for 384 reactions. The key to the TET2 Homogeneous Assay Kit is a highly specific antibody that recognizes the hydroxymethylated substrate, and the increase in Alpha-counts is proportional to the hydroxymethylation of the substrate. First, a sample containing TET2 enzyme is incubated with the reaction mixture. Next, acceptor beads are added, followed by donor beads and reading the Alpha-counts.

The Chemi-Verse™ PARP7 Assay Kit is an ELISA-type chemiluminescent assay designed to measure PARP7 enzymatic activity for screening and profiling applications. PARP7 catalyzes the NAD-dependent ADP-ribosylation of histones. This 96-well or 384-well format assay kit contains sufficient amounts of purified PARP7 enzyme (amino-acids 400- 657), histone mixture, and PARP assay buffer for 100 or 400 enzyme reactions. The Chemi-Verse™ PARP7 Assay Kit takes advantage of a highly specific ADP-ribose binding reagent. First, histone proteins are coated on a 384-well plate. Next, an NAD⁺ substrate is incubated with the PARP7 enzyme in an optimized assay buffer. Finally, the plate is treated with the ADP-ribose specific binding reagent and secondary HRP-conjugated antibody, followed by addition of the ELISA ECL substrate to produce chemiluminescence that can be measured using a chemiluminescence reader.

The PARG Fluorogenic Assay Kit is a high-throughput, homogeneous 96-well or 384-well assay designed to measure the hydrolase activity of Poly (ADP-ribose) glycohydrolase (PARG) for screening and profiling applications, using a simple and straightforward fluorogenic assay. The PARG Fluorogenic Assay Kit contains enough purified recombinant PARG enzyme, substrate, and assay buffer for 100 or 400 enzyme reactions.

The PCSK9(D374Y) [Biotinylated]-LDLR Binding Assay Kit is designed for screening and profiling purposes. The kit comes in a convenient 96-well format and contains enough biotin-labeled mutant protein PCSK9(D374Y), purified LDLR ectodomain, and HRP-conjugated streptavidin for 100 reactions. Moreover, two pre-formulated assay buffers are supplied to validate PCSK9-LDLR binding in either neutral or acidic binding conditions. This assay takes advantage of the high sensitivity of detection of biotin-labeled PCSK9(D374Y) by streptavidin-HRP. First, a 96-well plate is coated with LDLR ectodomain. PCSK9(D374Y) is then incubated with LDLR. Finally, the plate is treated with streptavidin-HRP followed by addition of an HRP substrate to produce chemiluminescence, which is measured using a chemiluminescence reader.