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Amplite® Fluorimetric NADP/NADPH Ratio Assay Kit
Red Fluorescence
Nicotinamide adenine dinucleotide (NAD+) and nicotinamide adenine dinucleotide phosphate (NADP+) are two important cofactors found in cells. NADH is the reduced form of NAD+, and NAD+ is the oxidized form of NADH. It forms NADP with the addition of a phosphate group to the 2' position of the adenyl nucleotide through an ester linkage. NADP is used in anabolic biological reactions, such as fatty acid and nucleic acid synthesis, which require NADPH as a reducing agent. The traditional NAD/NADH and NADP/NADPH assays are done by monitoring of NADH or NADPH absorption at 340 nm. This method suffers low sensitivity and high interference since the assay is done in the UV range that requires expensive quartz microplate. Our Amplite® NADP/NADPH Ratio Assay Kit provides a convenient method for sensitive detection of NADP, NADPH and their ratio. The enzymes in the system specifically recognize NAD/NADH in an enzyme cycling reaction. There is no need to purify NADP/NADPH from sample mix. The enzyme cycling reaction significantly increases detection sensitivity. In addition, this assay has very low background since it is run in the red visible range that significantly reduces the interference from biological samples. The assay has demonstrated high sensitivity and low interference. This Amplite® Fluorimetric NADP/NADPH Assay Kit can be performed in a convenient 96-well or 384-well microtiter-plate format and easily adapted to automation with no separation steps required.
NADPH dose response was measured with Amplite® Fluorimetric NADP/NADPH Ratio Assay Kit in a 96-well solid black plate using a Gemini microplate reader (Molecular Devices).
NADPH dose response was measured with Amplite® Fluorimetric NADP/NADPH Ratio Assay Kit in a 96-well solid black plate using a Gemini microplate reader (Molecular Devices).
CatalogSize
Price
Quantity
15264250 Tests
Price
 
Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
UNSPSC12352200
Instrument settings

Absorbance microplate reader
Absorbance576 ± 5 nm
Recommended plateClear bottom

Fluorescence microplate reader
Excitation540 nm
Emission590 nm
Cutoff570 nm
Recommended plateSolid black
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Page updated on October 13, 2025