Anthropic announced the formation of a life sciences research group and laboratory focused on using Claude to accelerate fundamental biology discoveries. In early results, Claude autonomously identified a previously uncharacterized enzyme system associated with repeating DNA sequences, demonstrating AI’s potential to systematize biological research.
The discovery centers on array-associated reverse transcriptases (ARTs), enzymes found in bacteriophages—viruses that infect bacteria. According to Anthropic, while reverse transcriptases themselves had been identified in prior studies, Claude appears to be the first to recognize the system’s defining characteristics: an associated array of non-coding DNA sequences and an additional accessory protein of unknown function. The pattern of DNA repeats resembles CRISPR, the gene-editing technology now used in medicine.
Anthropric gave Claude a high-level directive to search a massive database of DNA sequences for interesting reverse transcriptase examples. Over 21 hours, approximately 950 Claude agents using 210 million tokens analyzed the data. One agent identified a repeating DNA sequence pattern adjacent to an unusual reverse transcriptase gene. After further analysis and laboratory testing, the team confirmed this marked a novel enzyme system.
From over 200,000 reverse transcriptases gathered, Claude agents identified 3,500 new candidate systems and narrowed those to 20 compelling candidates for detailed analysis—work that would typically require weeks to months for a human scientist, according to Anthropic.
Feng Zhang, a CRISPR pioneer and MIT/Broad Institute professor, commented that “the identification of RNA-repeat arrays associated with reverse transcriptases is genuinely intriguing and merits further investigation,” and expressed hope the work would encourage scientists to explore AI’s role in research.
Anthropric’s Bay Area laboratory conducts only lower-level biosafety research (BSL-1 and BSL-2) and does not handle human pathogens. All laboratory work is performed by human scientists. The team’s workflow involves Claude searching uncharacterized protein databases, reading literature, generating hypotheses with evidence, and proposing functions before human scientists evaluate candidates for experimental testing.
The primary function of ARTs remains under investigation. Anthropic released a pre-print discussing findings in greater detail and emphasized the importance of sharing early results to demonstrate Claude’s capabilities and inform the broader scientific community.
Key facts
- Claude discovered array-associated reverse transcriptases (ARTs), a novel enzyme system in bacteriophages with CRISPR-like repeat patterns
- Approximately 950 Claude agents analyzed DNA sequences over 21 hours using 210 million tokens to make the discovery
- Claude identified 3,500 new candidate enzyme systems from over 200,000 reverse transcriptases analyzed
- Anthropic formed a dedicated life sciences research group and laboratory to use Claude for biological discovery
- The underlying reverse transcriptase had been previously identified, but Claude uniquely recognized its associated DNA repeats and accessory protein