Targeting double-stranded nucleic acids using the λExo–pDNA system

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λ exonuclease (λExo) binds 5′-phosphorylated single-stranded DNA (pDNA) at complementary regions on double-stranded DNA and DNA–RNA duplexes under ambient conditions without a PAM-like motif. In the presence of Mg2+λExo then digests the pDNA into nucleotides.

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Fig. 1: λExo-mediated degradation of 5′-phosphorylated DNA when targeting its complementary region on double-stranded nucleic acids.

References

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This is a summary of: Fu, S. et al. Bacteriophage λ exonuclease and a 5′-phosphorylated DNA guide allow PAM-independent targeting of double-stranded nucleic acids. Nat. Biotechnol. https://doi.org/10.1038/s41587-024-02388-9 (2024).

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Targeting double-stranded nucleic acids using the λExo–pDNA system. Nat Biotechnol (2024). https://doi.org/10.1038/s41587-024-02409-7

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