Base editors are a new family of programmable genome editing tools that fuse ssDNA (single-stranded DNA) modifying enzymes to catalytically inactive CRISPR-associated (Cas) endonucleases to induce highly efficient single base changes. With dozens of base editors now reported, it is apparent that these tools are highly modular; many combinations of ssDNA modifying enzymes and Cas proteins have resulted in a variety of base editors, each with its own unique properties and potential uses. In this perspective, we describe currently available base editors, highlighting their modular nature and describing the various options available for each component. Furthermore, we briefly discuss applications in synthetic biology and genome engineering where base editors have presented unique advantages over alternative techniques.
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Cover Image
Cover Image
This issue of Emerging Topics in Life Sciences brings together a collection of perspectives and reviews discussing the exciting advances in synthetic biology. The cover image is an adaptation of a figure featured in the review ‘Physicochemical considerations for bottom-up synthetic biology’ by Śmigiel et al. It shows an artist's impression of a bottom-up constructed synthetic cell, representing the three basic processes of a living cell: cell fuelling (green), DNA processing (orange/red), and cell division (blue).
Base editors: modular tools for the introduction of point mutations in living cells
Mallory Evanoff, Alexis C. Komor; Base editors: modular tools for the introduction of point mutations in living cells. Emerg Top Life Sci 11 November 2019; 3 (5): 483–491. doi: https://doi.org/10.1042/ETLS20190088
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