You searched for: Enzyme Assays

Supplier: AAT Bioquest

Designed for consistent and dependable results. The Amplite® Rapid Colorimetric APC-Maleimide Quantitation Kit facilitates the quantification of maleimide groups on maleimide-activated APC proteins using a proprietary sensor, Maleimide 555™, which has an absorption peak at ~555 nm.

Supplier: AAT Bioquest

Hypochlorite anion (ClO-) and its protonated form, hypochlorous acid (HClO) are critical reactive oxygen species (ROS) in biological systems.

Supplier: AAT Bioquest

When cells are exposed to increased levels of oxidative stress, GSSG will accumulate and the ratio of GSH to GSSG will decrease.

Supplier: AAT Bioquest

Site-selective modification of proteins is of major interest in chemical biology.

Supplier: AAT Bioquest

Mercuric ion is an essential metal ion that plays an important role in a number of biological processes.

Supplier: AAT Bioquest

Horseradish Peroxidase (HRP) is a small molecule (MW ~40 Kd) that is widely used in a variety of biological detections.

Supplier: AAT Bioquest

Choline and its metabolites play an important role in the structural integrity and signaling of cell membranes and cholinergic neurotransmission (acetylcholine synthesis).

Supplier: AAT Bioquest

Designed for consistent and dependable results. AAT Bioquest's ReadiUse™ NADP regenerating kit provides a flexible prepackaged NADP regenerating system to accommodate various experimental designs.

Supplier: AAT Bioquest

The formation, reactivity and toxicity of aldehydes originating from the peroxidation of lipids of cellular membranes have received great attention in recent years.

Supplier: AAT Bioquest

A variety of substrates are available for detecting peroxidase activity in ELISA assays. colourimetric HRP substrates (e.g., TMB, OPD and ABTS) have been widely used for years. Each of these substrates varies greatly with respect to its performance characteristics such as detection sensitivity, working range and attainable signal-to-noise ratios. Amplite® Blue peroxidase substrate is a soluble fluorogenic substrate for detection of peroxidase activity. Amplite® Blue allows rapid HRP detection assays to be performed with greater sensitivity than the colourimetric HRP substrates (such as TMB and OPD). The fluorescent product of Amplite® Blue does not photobleach. Amplite® Blue exhibits a flat baseline in assays, which facilitates low-level detection sensitivity and allows for high signal-to-noise ratios.

Supplier: AAT Bioquest

Superoxide dismutases (SOD) are a class of enzymes that catalyse the dismutation of superoxide into oxygen and hydrogen peroxide.

Supplier: AAT Bioquest

Melanins have very diverse roles and functions in various organisms.

Supplier: AAT Bioquest

Nitroreductases (NTR) are a family of evolutionarily related proteins involved in the reduction of nitrogen-containing compounds.

Supplier: AAT Bioquest

Lactic acid is chiral and has two optical isomers: L-lactic acid and D-lactic acid.

Supplier: AAT Bioquest

L-Ascorbic Acid (also called Vitamin C) is a critical metabolite for both plant and animals in cell division, growth and defense.

Supplier: AAT Bioquest

Ketone bodies are produced by the liver and used peripherally as an energy source when blood glucose levels drop.

Supplier: AAT Bioquest

Designed for consistent and dependable results. The Amplite® colorimetric fructose-6-phosphate assay kit is a highly sensitive and simple method of quantifying F6P present in a variety of samples.

Supplier: Thermo Fisher Scientific

Pierce™ Quantitative Peroxide Assay Kit (Aqueous) detects and measures hydrogen peroxide levels in biological samples using an iron and xylenol orange* (XO) reagent.

Supplier: AAT Bioquest

Hypochlorite anion (ClO-) and its protonated form, hypochlorous acid (HClO) are critical reactive oxygen species (ROS) in biological systems.

Supplier: AAT Bioquest

Sphingomyelinase (SMase) is an enzyme that is responsible for cleaving sphingomyelin (SM) to phosphocholine and ceramide.

Supplier: Thermo Fisher Scientific

The Thermo Scientific Pierce Cypridina-Firefly Luciferase Dual Assay Kit provides the necessary reagents to simultaneously detect intracellular Cypridina and Red Firefly luciferase activity in mammalian whole cell lysates.

Supplier: AAT Bioquest

Alkaline phosphatase is a highly sensitive enzyme for ELISA, immuno-histochemical, Northern, Southern and Western blot applications.

Supplier: AAT Bioquest

Acetylcholinesterase, also known as AChE, is an enzyme that degrades (through its hydrolytic activity) the neurotransmitter acetylcholine, producing choline and an acetate group.

Supplier: G-Biosciences

The Phosphatase Assay Kit is designed to measure the activity of phosphatases in biological samples and to screen for agonists and inhibitors of phosphatases. The Phosphatase Assay Kit uses para-nitrophenyl phosphate (pNPP), a chromogenic substrate for most phosphatases, including alkaline phosphatases, acid phosphatases, protein tyrosine phosphatases and serine/threonine phosphatases.

Supplier: AAT Bioquest

Acetylcholinesterase, also known as AChE, is an enzyme that degrades (through its hydrolytic activity) the neurotransmitter acetylcholine, producing choline and an acetate group.

Supplier: AAT Bioquest

The traditional Bradford protein assay is widely used for quantifying protein concentrations.

Supplier: AAT Bioquest

Nicotinamide adenine dinucleotide (NADH) and its oxidized form (NAD) are essential cofactors for many enzyme reactions found in living cells.

Supplier: AAT Bioquest

L-alanine (L-Ala) plays a crucial role as a building block of important proteins.

Supplier: AAT Bioquest

A variety of crosslinking reagents with a maleimide group are widely used for crosslinking proteins to proteins or proteins to other biomolecules.

Supplier: AAT Bioquest

E. coli beta-galactosidase is a 464 Kd tetramer.