"A single viral enzyme drives tRNA-dependent DNA hypermodification." by Silva et al.[1] (Nature Communications, Apr 03, 2026) is our featured scientific article for April.
In a recent study published in Nature Communications, Silva et al. (2026)[1] describe a fascinating mechanism by which a single viral enzyme introduces complex chemical modifications into DNA.
The authors show that the bacteriophage Mu Mom enzyme is an active aminoacyltransferase that utilizes loaded tRNA molecules from the host as cofactors to transfer modified groups onto adenine bases in its own DNA, leading to so-called DNA hypermodifications. This mechanism reveals an unexpected strategy in which viruses repurpose components of the host’s translational machinery to chemically alter their own genomes to protect them against the host’s defense system of endonucleases.
Want to read more: access the full article here!
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[1] Silva et al. (2026) A single viral enzyme drives tRNA-dependent DNA hypermodification. Nature Communications, https://www.doi.org/10.1038/s41467-026-70671-1
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