Do giant viruses have a CRISPR-like immune system or a protein restriction factor?
A battle is brewing between two research groups in Marseille, France that are involved in the discovery and study of giant viruses. Didier Raoul and colleagues believe that they have discovered a CRISPR-like, DNA based defense system in mimivirus that confers resistance to virophage (paper link). Claverie and Abergel disagree: they think that the defense …
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