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National Academy of Sciences, Proceedings of the National Academy of Sciences, 11(114), p. 2976-2981, 2017

DOI: 10.1073/pnas.1618596114

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Cas9-mediated genome editing in the methanogenic archaeonMethanosarcina acetivorans

Journal article published in 2017 by Dipti D. Nayak ORCID, William W. Metcalf ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Significance Methanogenic archaea play a central role in the global carbon cycle, with profound implications for climate change, yet our knowledge regarding the biology of these important organisms leaves much to be desired. A key bottleneck that hinders the study of methanogenic archaea, especially those within the genus Methanosarcina , results from the time-consuming and often cumbersome tools that are currently available for genetic analysis of these microbes. The Cas9-mediated genome-editing approach for Methanosarcina acetivorans described in this study addresses this major constraint by streamlining the mutagenic process and enabling simultaneous introduction of multiple mutations. This work also sheds light on the distinct properties of homology-dependent repair and nonhomologous end-joining machinery in Archaea.