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A peculiar evolutionary feature of monkeypox virus

Dai, Y.; Teng, X.; Hu, D.; Zhang, Q.; Li, J.

2022-06-19 genetics
10.1101/2022.06.18.496696 bioRxiv
Show abstract

From 1 Jan 2022 to 15 June 2022, more than 2,100 cases of monkeypox have been reported in 42 countries. This unusual outbreak of monkeypox has raised new concerns in academia and the public. To keep abreast of the trend of the monkeypox epidemic, it is extremely urgent and important to surveille the accumulated genomic mutations and the change of the transmission ability of the pathogen, monkeypox virus (MPXV). We report a non-canonical RNA secondary structure, G-quadruplex (RG4), that surprisingly evolved stepwise with various variants. The RG4 motif is located in the coding sequence region of MPXV C9L gene that is functional in inhibiting host innate immune response. The evolution decreases the stability of this RG4 and promotes C9L protein level in living cells. Importantly, all the reported MPXV genomes in 2022 contain the most unstable RG4 variant, which may be the reason of the increasing spread of MPXV. These findings recommend that health authorities and researchers pay attention to the genomic evolution of MPXV.

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"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.