Pyruvate, which is produced in the final step of glycolysis, participates in anabolic metabolism, catabolic metabolism, and signal transduction. Invitrogen Molecular Probes Amplex UltraRed Reagent 5 x 1mg Electrophoresis, Western Blotting and ELISA:Western Blotting Reagents, Membranes. Invitrogen Molecular Probes Amplex Red/UltraRed Stop Reagent 1 set Life Sciences:Cell Analysis:Cell Based Assays:Cell Growth and Differentiation Reagents.

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To overcome this problem, we examined this fluorimetric assay with the new dye Amplex UltraRed Cat. Lamprecht W, Heinz F. Springer-Verlag; Berlin; New York: We also tested the stability of Amplex UltraRed. However, the absorption and fluorescence of resorufin are pH-dependent.

All chemicals were purchased from Sigma-Aldrich St. The first column in Fig. As HClO 4 is commonly used as a deproteinizing reagent in pyruvate sample preparation, we tested its effect on this assay. The publisher’s final edited version of this article is available at Anal Biochem. For bacterial pyruvate oxidase, one unit will produce 1. This is a PDF file of an unedited manuscript that has been accepted for publication. Concentrations of metabolites in animal tissues.

A simple statistical parameter for use in evaluation and validation of high throughput screening assays. Author information Copyright and License information Disclaimer. However, its background fluorescence is higher.

The manuscript will undergo copyediting, typesetting, and review of ulra resulting proof before ref is published in its final citable form. Jump to main content. The importance of sodium pyruvate in assessing damage produced by hydrogen peroxide.


As a service to our customers we are providing this early version of the manuscript. Group members share an interest in encouraging computational toxicology usage and exposure science in helping to implement EPA’s mission of protecting human health and the environment.

In addition, H 2 O 2 has been reported to cause a nonenzymatic and stoichiometric decarboxylation of pyruvate [ 56 ]. Please note that during the production process errors may be discovered which could affect the content, and ulgra legal disclaimers that apply to the journal pertain. Calibration curves for Amplex UltraRed using excitation wavelengths of nm A and nm B are shown. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.

Analysis of High-throughput screening data from Amplex UltraRed (AUR) Thyroperoxidase (TPO) assays

The role of phosphometabolites in cell proliferation, energy metabolism, and tumor therapy. Therefore, we recommend fresh preparations of Amplex UltraRed aqueous solutions prior to assays. Regulation of store-operated erd channels by the intermediary metabolite pyruvic acid. Each point is the mean of triplicate measurements. Properties of the Amplex UltraRed assay. See other articles in PMC that cite the published article. Free Radic Biol Med.

Louis, MO unless otherwise noted.

Ampleex next evaluated the selectivity of the method by performing the same assay with phosphoenolpyruvate PEPlactate, acetoacetate, ketoglutarate, 2-oxobutyrate, oxaloacetate as samples.

The linearity of these data are excellent, as judged by the coefficients of determination of 0. Contact Us to ask a question, provide feedback, or report a problem. Our results show that Amplex UltraRed improves the performance of the assay, providing brighter fluorescence and enhanced sensitivity.


The NaClO 4 concentration is As shown in Fig. National Center for Biotechnology InformationU.

Abstract Pyruvate, which is produced in the final step of glycolysis, participates in anabolic metabolism, catabolic metabolism, and signal transduction. The document below is a presentation from one of the monthly meetings of EPA’s Computational Toxicology Communities of Practice, a group ampllex of hundreds of people from over 50 public and private sector organizations.

Amplex UltraRed enhances the sensitivity of fluorimetric pyruvate detection

The pH optimum of HRP is in the range of 6. Academic Press; New York: For these reasons, the reactions should be performed at pH 7—8. Error bars are not shown because their sizes are smaller than the symbols. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA zmplex will be updated with rsd information.

The results show that Amplex UltraRed improves the performance of pyruvate assay, providing enhanced signal sensitivity. An excitation wavelength of nm is used. An official website of the United States government. Due to a lapse in appropriations, EPA websites will not be regularly updated.