On Wednesday, Anthropic announced that its Claude AI had identified what researchers believe is a previously unrecognized biological system hidden in the DNA of bacteriophages, viruses that infect bacteria. The system contains a reverse transcriptase, a nearby partner gene, and a long array of repeating DNA sequences. Anthropic calls it ART, short for array-associated reverse transcriptases.
From Anthropic:
Today, we’re sharing early results from one of our first research programs, in which Claude autonomously discovered a novel enzyme system that is associated with an array of DNA repeats, a pattern reminiscent of CRISPR. Although we don’t yet know its function, the system that Claude discovered has a set of characteristics that have only ever been found together in a handful of other systems, all of which are programmable and perform operations like cutting, copying, and pasting DNA. Beyond CRISPR, which has already transformed science and medicine, several other such systems are now in development as promising tools. //
The enzyme itself wasn't unknown. Scientists had already catalogued the reverse transcriptase. What humans apparently missed was the larger pattern surrounding it. Claude noticed that these pieces occurred together and that the repeating DNA looked strangely organized.
Finding it required scale no human research team could easily match. Anthropic unleashed roughly 950 Claude agents on an enormous genetic database. The technical report says they surveyed reverse transcriptase locations across 1.9 billion protein clusters. Claude gathered more than 200,000 reverse transcriptases, found about 3,500 candidate systems, and narrowed them to 20 particularly interesting possibilities. //
Nobody yet knows what ART actually does.
Anthropic compares its structure with CRISPR because CRISPR also contains repeating genetic sequences associated with programmable biological machinery. Researchers haven't shown that ART edits genes, cuts DNA, or can become another CRISPR. The work is a preprint, not a peer-reviewed conclusion, and much of the biology remains unresolved. //
Scientists have built databases containing mountains of genetic information collected over decades. The bottleneck has increasingly become our ability to examine all of it, recognize unusual relationships, and decide which oddities deserve another look.
Claude just demonstrated a possible answer.
