Choline/Acetylcholine Assay Kit (ab65345)
Key features and details
- Assay type: Quantitative
- Detection method: Colorimetric/Fluorometric
- Platform: Microplate reader
- Assay time: 40 min
- Sample type: Cell culture extracts, Cell culture supernatant, Other biological fluids, Plasma, Serum, Tissue Extracts, Urine
- Sensitivity: 0.01 nmol/well
Overview
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Product name
Choline/Acetylcholine Assay Kit -
Detection method
Colorimetric/Fluorometric -
Sample type
Cell culture supernatant, Urine, Serum, Plasma, Cell culture extracts, Other biological fluids, Tissue Extracts -
Assay type
Quantitative -
Sensitivity
> 0.01 nmol/well -
Range
0.01 nmol/well - 5 nmol/well -
Assay time
0h 40m -
Species reactivity
Reacts with: Mammals, Other species -
Product overview
Choline/Acetylcholine Assay Kit (ab65345) provides a simple and sensitive means for quantifying Choline and Acetylcholine by either a colorimetric or fluorometric method in samples such as blood, cells, culture media, fermentation media, etc.
In the choline / acetylcholine assay protocol, 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 to measure total choline (choline + acetyl choline). The amount of acetyl choline is calculated by subtracting choline from total choline.
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.
Choline / acetylcholine assay protocol summary:
- add samples and standards to wells
- add choline reaction mix with, or without, acetylcholinesterase, and incubate for 30 min at room temp
- analyze with microplate reader -
Notes
If you need to purchase additional Choline Probe for this product, please see ab139505.
Abcam has not and does not intend to apply for the REACH Authorisation of customers’ uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses. -
Platform
Microplate reader
Properties
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Storage instructions
Store at -20°C. Please refer to protocols. -
Storage buffer
Preservative: None -
Components Identifier 100 tests Acetylcholinesterase Blue 1 vial 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 -
Research areas
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Relevance
Choline and acetylcholine (often abbreviated ACh) play important roles in many biological processes. Choline is a natural amine, and is generally found in phosphatidylcholine and sphingomyelin, phopholipids abundant in cell membranes. Choline is also the precursor molecule for the neurotransmitter acetylcholine which is involved in many functions both in the peripheral nervous system (PNS) and in the central nervous system (CNS). In the PNS, ACh activates muscles and is a major neurotransmitter in the autonomic nervous system. In the CNS, ACh and the associated neurons form the cholinergic system, which tends to cause anti-excitatory actions.
Images
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Functional studies- ab65345 Image from Kim J.H et al., PLoS One 8(2), Fig 4. doi: 10.1371/journal.pone.0056736. Reproduced under the Creative Commons license http://creativecommons.org/licenses/by/4.0/
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).
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Functional Studies - Choline/Acetylcholine Assay Kit (ab65345) -
Functional Studies - Choline/Acetylcholine Assay Kit (ab65345)Choline measured fluorometrically in mouse tissue lysates showing quantity (nmol) per mg protein of tested sample
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Functional Studies - Choline/Acetylcholine Assay Kit (ab65345)Choline measured fluorometrically in cell lysates showing quantity (pmol) per 1 mln of tested cells
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Functional Studies - Choline/Acetylcholine Assay Kit (ab65345)Choline measured fluorometrically in biological fluids showing quantity (nmol) per mL of tested sample