Claude Finds Hidden Enzyme System in Viral DNA: CRISPR Pioneer Calls It Intriguing

949 Claude Mythos 5 agents spent 21.5 hours scanning a database of 1.9 billion protein clusters and surfaced a previously uncharacterized enzyme system in bacteriophage DNA, built from a reverse transcriptase, a partner gene and a repeat array resembling a CRISPR architecture. Anthropic named it ART and published a preprint on September 23, 2026, while Feng Zhang of the Broad Institute called the finding intriguing but did not confirm that ART edits genes.

• 949 Claude Mythos 5 agents ran for 21.5 hours without human guidance
• The search covered a database of 1.9 billion protein clusters
• ART combines a reverse transcriptase, a partner gene and a repeat array
• Preprint published September 23, 2026; ART's function remains unconfirmed