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Proteomics Approach to Identifying ATP-Covalently Modified Proteins

Journal of Proteome Research, ISSN: 1535-3893, Vol: 3, Issue: 1, Page: 120-125
2004
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Article Description

This study aims to investigate functionally similar proteins based on their capacity to remain bound to ATP under stringent resolving conditions. Using two-dimensional gel electrophoresis and capillary liquid chromatography on-line mass spectrometry, we have identified several mammalian and E. coli proteins that appear to covalently bind ATP. To validate this approach, we obtained commercially purified forms of proteins identified from two-dimensional protein maps and tested their capacity to bind alpha P phosphate labeled ATP. This proteomics approach provides an initial screening method of identifying functionally similar proteins for further scrutiny by a more traditional analysis.

Bibliographic Details

Besant, Paul G; Lasker, Michael V; Bui, Cuong D; Tan, Eiling; Attwood, Paul V; Turck, Christoph W

American Chemical Society (ACS)

Chemistry; Biochemistry, Genetics and Molecular Biology

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