Characterization of a triad of genes in cyanophage S-2L sufficient to replace adenine by 2-aminoadenine in bacterial DNA
The cyanophage S-2L incorporates 2-aminoadenine (Z) instead of adenine into its DNA, which still pairs with thymine forming a triple hydrogen bond. Here, the authors identify a third gene mazZ located between purZ and datZ that is required for 2-aminoadenine biosynthesis and determine the crystal st...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2021-08-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-021-25064-x |
| Summary: | The cyanophage S-2L incorporates 2-aminoadenine (Z) instead of adenine into its DNA, which still pairs with thymine forming a triple hydrogen bond. Here, the authors identify a third gene mazZ located between purZ and datZ that is required for 2-aminoadenine biosynthesis and determine the crystal structures of MazZ and PurZ. They further show that co-expression of these three genes in E.coli enables 2-aminoadenine incorporation into the bacterial genome. |
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| ISSN: | 2041-1723 |