Researchers uncovered a previously unknown CRISPR immune response in bacteria that targets transfer RNAs. The newly ...

The new findings strengthen the "RNA world" hypothesis that describes how the first life on Earth could have used RNA instead ...

A novel CRISPR defense mechanism, unlike known nucleases, specifically destroys transfer ribonucleic acids (tRNA) that are ...

Researchers at Utah State University revealed new details about CRISPR immune system defenses, such as Cas12a3 systems, that ...

A new research paper featured as the cover of Volume 17, Issue 12 of Aging-US was published on December 22, 2025, titled "A ...

This is a summary of: Liu. H. et al. Viral RNA blocks circularization to evade host codon usage control. Nature https://doi.org/10.1038/s41586-025-09809-y (2025).

Across all domains of life, immune defenses foil invading viruses by making it impossible for the viruses to replicate. Most known CRISPR systems target invading pathogens' DNA and chop it up to ...