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Mad2 Inhibitor-1 (M2I-1) : A Small Molecule Protein-Protein Interaction Inhibitor Targeting the Mitotic Spindle Assembly Checkpoint

Mad2 Inhibitor-1 (M2I-1) : A Small Molecule Protein-Protein Interaction Inhibitor Targeting the Mitotic Spindle Assembly Checkpoint

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KASTL, Johanna, Joachim BRAUN, Andreas PRESTEL, Heiko M. MÖLLER, Thomas HUHN, Thomas U. MAYER, 2015. Mad2 Inhibitor-1 (M2I-1) : A Small Molecule Protein-Protein Interaction Inhibitor Targeting the Mitotic Spindle Assembly Checkpoint. In: ACS Chemical Biology. 10(7), pp. 1661-1666. ISSN 1554-8929. eISSN 1554-8937

@article{Kastl2015-07-17Inhib-32212, title={Mad2 Inhibitor-1 (M2I-1) : A Small Molecule Protein-Protein Interaction Inhibitor Targeting the Mitotic Spindle Assembly Checkpoint}, year={2015}, doi={10.1021/acschembio.5b00121}, number={7}, volume={10}, issn={1554-8929}, journal={ACS Chemical Biology}, pages={1661--1666}, author={Kastl, Johanna and Braun, Joachim and Prestel, Andreas and Möller, Heiko M. and Huhn, Thomas and Mayer, Thomas U.} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/32212"> <dc:creator>Braun, Joachim</dc:creator> <dcterms:issued>2015-07-17</dcterms:issued> <dc:contributor>Kastl, Johanna</dc:contributor> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/32212"/> <dc:creator>Huhn, Thomas</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-23T12:25:27Z</dcterms:available> <dc:creator>Mayer, Thomas U.</dc:creator> <dc:creator>Prestel, Andreas</dc:creator> <dc:contributor>Möller, Heiko M.</dc:contributor> <dc:contributor>Braun, Joachim</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-23T12:25:27Z</dc:date> <dc:contributor>Prestel, Andreas</dc:contributor> <dcterms:title>Mad2 Inhibitor-1 (M2I-1) : A Small Molecule Protein-Protein Interaction Inhibitor Targeting the Mitotic Spindle Assembly Checkpoint</dcterms:title> <dc:creator>Kastl, Johanna</dc:creator> <dc:contributor>Huhn, Thomas</dc:contributor> <dc:language>eng</dc:language> <dcterms:abstract xml:lang="eng">The genetic integrity of each organism depends on the faithful segregation of its genome during mitosis. To meet this challenge, a cellular surveillance mechanism, termed the spindle assembly checkpoint (SAC), evolved that monitors the correct attachment of chromosomes and blocks progression through mitosis if corrections are needed. While the central role of the SAC for genome integrity is well established, its functional dissection has been hampered by the limited availability of appropriate small molecule inhibitors. Using a fluorescence polarization-based screen, we identify Mad2 inhibitor-1 (M2I-1), the first small molecule inhibitor targeting the binding of Mad2 to Cdc20, an essential protein-protein interaction (PPI) within the SAC. Based on computational and biochemical analyses, we propose that M2I-1 disturbs conformational dynamics of Mad2 critical for complex formation with Cdc20. Cellular studies revealed that M2I-1 weakens the SAC response, indicating that the compound might be active in cells. Thus, our study identifies the SAC specific complex formation between Mad2 and Cdc20 as a protein-protein interaction that can be targeted by small molecules.</dcterms:abstract> <dc:contributor>Mayer, Thomas U.</dc:contributor> <dc:creator>Möller, Heiko M.</dc:creator> </rdf:Description> </rdf:RDF>

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