Ames Mutagenicity Assays    Cytotoxicity Assays    YES/YAS TestTraining Courses & CRLProducts    Company    Distributors
Xenometrix AG
Gewerbestrasse 25
CH-4123 Allschwil
Switzerland

Tel. +41 61 482 14 34
Fax +41 61 482 20 72
infoxenometrix.ch
Xenometrix AG - Ames Mutagenicity and Cytotoxicity Assays

 

Xenometrix produces and distributes today's most advanced Ames mutagenicity assays (microfluctuation assays) and cytotoxicity screening kits designed to reduce the amount of test compound, hands-on time and consumables.

The Ames II / Ames MPF Microfluctuation Assays are all modifications of the traditional Ames plate incorporation assay. The Ames II assay uses the S. typhimurium strains TA98 and TAMix (a mixture of 6 strains, each detecting a specific base-pair substitution), whereas the Ames MPF® kits are available with the strains TA98, TA100, TA1535, TA1537, E.coli WP2 uvrA or E.coli WP2 pKM101.

The Xenometrix Cytotoxicity Screening Kits enable the user to determine up to four cytotoxicity parameters from the same cellular sample! (PAN I: LDHe-XTT-NR-SRB). This is particularly useful in situations of limited compound availability and with valuable or rare test cells such as primary cultures. A full range of parameters is offered: XTT, MTT, Lactate Dehydrogenase, Sulforhodamine B, Neutral Red, Crystal Violet, Acid Phosphatase, Glucose.

Xenometrix's genotoxitcity and cytotoxicity assays are used by major pharmaceutical, chemical and cosmetic industries, but also by authorities analyzing for environmental toxicants, by CROs, research labs of universities and hospitals.

Xenometrix also offers to perform these tests with customer’s samples in our laboratories in Allschwil, Switzerland. Our experienced staff is thoroughly trained and has vast experience with the Ames II, Ames MPF, cytotoxicity and umuC genotoxicity tests.

 

 
Frost & Sullivan Best Practices Award

New product:

Xenometrix expands its line of rat liver S9

Besides Aroclor-1254 induced rat liver S9 we now also offer Phenobarbital/β-Naphtoflavone-induced rat liver S9. Both products come lyophilized and are available in 3 sizes: 0.4, 1, and 2 ml. They are available separately or as part of our Ames II and Ames MPF mutagenicity kits and come also with our umuC Easy genotoxicity kit.

The two forms of S9 may contain different proportions and concentrations of CYP enzymes, as is also the case with different S9 batches, but generally either version of S9 may be used.

More information

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New product:

 

S9 cofactor kit PCO-0800

 

The enzymes in the S9 liver fraction need NADPH for activity. In the Ames assay NADPH is usually generated in situ by the enzyme glucose-6-dehydrogenase using glucose-6-phosphate as a substrate to reduce NADP+ to NADPH.

Xenometrix now offers a ready-to-use 3-component S9 cofactor kit which replaces the 5 homemade S9 mix buffer components (phosphate buffer, KCl, MgCl2, NADP+, G-6-P).

 

As with all Xenometrix products you can count on our thorough quality control, consistent performance and our friendly and competent customer support.

 

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Environmental:

A new kit XenoScreen YES/YAS for testing samples for endocrine disruptor activity is available from Xenometrix. XenoScreen YES/YAS is a kit including all reagents necessary to perform the assay and is designed to identify both activating (agonistic) and inhibiting (antagonistic) activities in the test samples.

 

Endocrine disruptors are chemicals mimicking the effects of estrogens and androgens. The YES and YAS assays are based on yeast cells transformed with the human estrogen and  androgen receptors, respectively, which also contain a galactosidase-based reporter gene construct.  Both assays are very sensitive and can detect 17β-estrogen and dihydrotestosteron at as low as 1x10-11M and 5x10-10 M, respectively!

 

Xenometrix offers also service analytics to test your samples for endocrine disruptor activity. We are looking forward to support you in your YES/YAS projects. 

 

More information

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