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A-YDS

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A-YDS2019-04-17T10:08:47+02:00

A-YDS Test kit for the detection of the Arylhydrocarbon (Ah) receptor mediated effects

In our uniquely developed A-YDS test kit, the best properties of all effect-based methods are combined. This Non-ELISA based method enables you to determine the concentration of dioxin and dioxin-active substances in ng/L range.

This cell-based screening method determines the activity of single substances and the cumulative activities of a substance mix which are mediated by Arylhydrocarbon (Ah) receptors. It is intended to be used for testing of substances like meat and fish. Sterile conditions are not required for this test. The ready-to-use yeast offers the benefit of significantly reducing your workload and workflow. By using the recombinant test organism Arxula adeninivorans you can test your samples within approximately 26 hours for the presence of Ah-receptor affine ligands. Using standardized production conditions, we ensure the consistent quality our test organism.

The A-YDS Test-Kit is suitable for the analysis of

  • Aqueous extracts

  • Surface water
  • and for substance testing

The A-YDS test kit is easy-to-use, has a low detection limit and comes with a free analysis software BioVAL® making it ideal for active ingredient research, in addition to various fields of application in biotechnology.

Duration of assay26 h
Number of samples (NEQ)max. 40
Validationin-house
Calibration range *0 – 10000
Limit of detection*59

* ng/L β-Naphthoflavon

The A-YDS is based on the genetically modified yeast A. adeninivorans. In the yeast genome the gene for the human aryl-hydrocarbon receptor hAhR, the gene for the human aryl-hydrocarbon receptor nuclear translocator (hARNT) and a reporter gene cassette have been integrated. In the presence of hAhR ligands, heterodimeric complexes are formed which act as transcription factors for the transcription of the reporter gene. The amount of produced reporter enzyme correlates with the total concentration of aryl-hydrocarbon receptor ligands in the sample. The detection is performed photometrically after enzymatic reaction with the chromogenic substrate p-nitrophenyl phosphate. Β-Naphthoflavone is used as the reference standard for calibration and quantification.

Ligand = AhR active substance / AhR = Arylhydrocarbon Receptor / TEFp = Translations-Elongationsfaktor Promotor / hAhR gen = gen for human Arylhydrocarbon Receptor / ARNT = Aryl-Hydrocarbon-Rezeptor Nuklear Translocator / GAAp = Glucoamylase Promotor /  XRE = Xenobiotic Responsives Element /  phyK gen = Phytase reporter gen /  P = Phytase.

The detection is carried out photometrically after enzymatic reaction with a chromogenic substrate (p-nitrophenylphosphate).

Enzymatische Reaktion gelb EUSAAT Poster

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Every kit comes complete with BioVAL®

Datenanalyse-Software BioVAL

Get statistical analysis of your data in the form of a “Certificate of Analysis” with BioVAL®. QuoData software is not only reliable but also certified. Learn more here!

Contact us for further information