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Structural Basis for Expansion of the Genetic Alphabet with an Artificial Nucleobase Pair

Structural Basis for Expansion of the Genetic Alphabet with an Artificial Nucleobase Pair

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BETZ, Karin, Michiko KIMOTO, Kay DIEDERICHS, Ichiro HIRAO, Andreas MARX, 2017. Structural Basis for Expansion of the Genetic Alphabet with an Artificial Nucleobase Pair. In: Angewandte Chemie International Edition. ISSN 1433-7851. eISSN 1521-3773

@article{Betz2017-06-27Struc-39797, title={Structural Basis for Expansion of the Genetic Alphabet with an Artificial Nucleobase Pair}, year={2017}, doi={10.1002/anie.201704190}, issn={1433-7851}, journal={Angewandte Chemie International Edition}, author={Betz, Karin and Kimoto, Michiko and Diederichs, Kay and Hirao, Ichiro and Marx, Andreas} }

<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/123456789/39797"> <dcterms:title>Structural Basis for Expansion of the Genetic Alphabet with an Artificial Nucleobase Pair</dcterms:title> <dc:creator>Betz, Karin</dc:creator> <dc:contributor>Marx, Andreas</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-08-08T14:59:51Z</dcterms:available> <dc:creator>Diederichs, Kay</dc:creator> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39797"/> <dc:language>eng</dc:language> <dc:contributor>Diederichs, Kay</dc:contributor> <dcterms:abstract xml:lang="eng">Hydrophobic artificial nucleobase pairs without the ability to pair through hydrogen bonds are promising candidates to expand the genetic alphabet. The most successful nucleobase surrogates show little similarity to each other and their natural counterparts. It is thus puzzling how these unnatural molecules are processed by DNA polymerases that have evolved to efficiently work with the natural building blocks. Here, we report structural insight into the insertion of one of the most promising hydrophobic unnatural base pairs, the dDs-dPx pair, into a DNA strand by a DNA polymerase. We solved a crystal structure of KlenTaq DNA polymerase with a modified template/primer duplex bound to the unnatural triphosphate. The ternary complex shows that the artificial pair adopts a planar structure just like a natural nucleobase pair, and identifies features that might hint at the mechanisms accounting for the lower incorporation efficiency observed when processing the unnatural substrates.</dcterms:abstract> <dc:contributor>Betz, Karin</dc:contributor> <dc:creator>Hirao, Ichiro</dc:creator> <dc:creator>Kimoto, Michiko</dc:creator> <dcterms:issued>2017-06-27</dcterms:issued> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-08-08T14:59:51Z</dc:date> <dc:contributor>Kimoto, Michiko</dc:contributor> <dc:contributor>Hirao, Ichiro</dc:contributor> <dc:creator>Marx, Andreas</dc:creator> </rdf:Description> </rdf:RDF>

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