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  Subnanoliter enzymatic assays on microarrays

Angenendt, P., Lehrach, H., Kreutzberger, J., & Glökler, J. (2005). Subnanoliter enzymatic assays on microarrays. PROTEOMICS, 5(2), 420-425. doi:10.1002/pmic.200400955.

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Angenendt et al. - Proteomics.pdf (Any fulltext), 294KB
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Angenendt et al. - Proteomics.pdf
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Angenendt, Philipp1, Author           
Lehrach, Hans1, Author           
Kreutzberger, Jürgen1, Author           
Glökler, Jörn1, Author           
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1Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433550              

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Free keywords: Drug screening; Enzymatic assay; Metagenomics; Multiple spotting technique; Protein microarray
 Abstract: Many areas of research today are based on enzymatic assays most of which are still performed as enzyme-linked immunosorbent assays in microtiter plates. The demand for highly parallel screening of thousands of samples eventually led to a miniaturization and automation of these assays. However, the final transfer of enzymatic assays from a microtiter-based technology to microarrays has proven to be difficult for various reasons, such as the inability to maintain unbound reaction products on the spot of reaction or the missing capability of multiplexing. Here, we have conducted multiplex enzymatic assays in subnanoliter volumes on a single microarray using the multiple spotting technology. We were able to measure enzymatic activity with a sensitivity down to 35 enzyme molecules, applying only conventional flat microarray surfaces and standard microarray hardware. We have performed assays of inhibition and applied this format for the detection of prognostic markers, such as cathepsin D. The new approach allows the rapid and multiplex screening of thousands of samples on a single microarray with applications in drug screening, metagenomics, and high-throughput enzyme assays.

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Language(s): eng - English
 Dates: 2005-02-08
 Publication Status: Published in print
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 Identifiers: eDoc: 268500
DOI: 10.1002/pmic.200400955
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Title: PROTEOMICS
Source Genre: Journal
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Pages: - Volume / Issue: 5 (2) Sequence Number: - Start / End Page: 420 - 425 Identifier: ISSN: 1615-9853