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Choline/Acetylcholine Assay Kit (ab65345) provides a simple and sensitive means for quantifying Choline and Acetylcholine by either a colorimetric or fluorometric method. In the assay free choline is oxidized to betaine, via the intermediate betaine aldehyde. The reaction generates products which react with the Choline Probe to generate color (λ= 570 nm), and fluorescence (Ex/Em 535/587 nm). Acetylcholine can be converted to choline by adding acetylcholinesterase to the reaction. The kit can detect choline and acetylcholine (total choline – free choline) in various biological samples such as in blood, cells, culture media, fermentation media, etc. There is no need for pretreatment or purification of samples. The kit can detect ~10 pmol-5 nmol of choline or acetylcholine.
Cells should be cultured in choline chloride free medium.
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Choline and acetylcholine play important roles in many biological processes. Choline is an essential nutrient, commonly grouped with the B complex vitamins, that plays key roles in many biological processes. Choline is a precursor for the synthesis of acetylcholine (AchE), a critical neurotransmitter in both the periferial and central nervous systems.
If you need to purchase additional Choline Probe for this product, please see ab139505.
|Choline Assay Buffer||WM||1 x 25ml|
|Choline Enzyme Mix||Green||1 vial|
|Choline Probe (in DMSO)||Red||1 x 200µl|
|Choline Standard (5 µmol)||Yellow||1 vial|
Acetylcholine levels from mouse brain tissue was measured using Acetylcholine assay kit (ab65345). Normal mice were anesthetized with thiopental sodium at 20minutes after the end of electroacupuncture (EA) treatment to determine levels of ACh (Figure A). Immunohistochemical staining mAChR (muscarinic acetylcholine receptor) M3 in mouse cerebral cortex tissue 20 minutes after the end of EA treatment (Image B).
Choline measured fluorometrically in mouse tissue lysates showing quantity (nmol) per mg protein of tested sample
Choline measured fluorometrically in cell lysates showing quantity (pmol) per 1 mln of tested cells
Choline measured fluorometrically in biological fluids showing quantity (nmol) per mL of tested sample
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