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caprotec bioanalytics GmbH

1 ARTICLES PUBLISHED IN JoVE

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Biology

Profiling of Methyltransferases and Other S-adenosyl-L-homocysteine-binding Proteins by Capture Compound Mass Spectrometry (CCMS)
Thomas Lenz 1, Peter Poot 2, Olivia Gräbner 1, Mirko Glinski 1, Elmar Weinhold 2, Mathias Dreger 1, Hubert Köster 1
1Department of Biochemistry / Analytics, caprotec bioanalytics GmbH, 2Institute of Organic Chemistry, RWTH Aachen University

Capture Compounds are trifunctional small molecules to reduce the complexity of the proteome by functional reversible small molecule-protein interaction followed by photo-crosslinking and purification. Here we use a Capture Compound with S-adenosyl-L-homocysteine-binding as selectivity function to isolate methyltransferases from an Escherichia coli whole cell lysate and identify them by MS.

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