Anthropic’s biology team, working with Claude, reports the first 3D structure of a vault particle from bacterial life
Event confirmedAwaiting review
The takeaway
On Nov 4, 2026 Anthropic’s life-sciences team said it worked with Claude to determine the first 3D structure of a vault particle from prokaryotic life: L05, a vault from a bacteriophage built from 96 copies of one protein, plus a larger engineered version.
Status
- Claim
Event confirmedAwaiting review
- Our reporting
- High confidence
- Verification
- Preprint only
- Importance
- 3 of 5
- Last verified
- 5 November 2026
Your AI and this story
- GPT-6 Astra188 days after its cutoff
- Claude Opus 5.5127 days after its cutoff
- Gemini 4 Argon218 days after its cutoff
- Grok 4.7157 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 127 days before it.
Key facts
- Authors: Januka Athukoralage, Peter Yoon, Nicholas Perry, Matthew Durrant (Anthropic); vault co-discoverer Leonard Rome advised as a paid consultant
- Claude helped search protein databases, design DNA constructs, optimise the isolation method and process microscopy data; researchers made the analysis decisions (Anthropic)
- Structure determined by cryo-electron microscopy; preprint submitted to bioRxiv (not yet live at publication); not peer-reviewed
- Anthropic’s X post: 538k+ views; it calls the project a demonstration of ‘the potential (and the limitations)’ of AI in wet-lab biology
- Leonard Rome: ‘Figuring out the function of vaults is still enormously challenging.’
What happened
Anthropic, which has been building an in-house biology team, published a research post on finding vault-forming proteins in bacteria and the viruses that infect them, and solving the structure of one of them. Until now vaults were known only in complex (eukaryotic) cells. The team argues that simpler organisms may make the vault’s function easier to study.
Why it matters
It is a first-hand example of a frontier lab using its own model as a research assistant across a full wet-lab project, with human scientists directing. The finding itself is modest in scope (a structure, not a function) and awaits peer review.
What is disputed or not yet verified
| Verification | cryo-EM structure; bioRxiv preprint, not peer-reviewed |
|---|
Sources
2 sources from 2 sites. Numbers match the chips in the text.
2 sources: 2 primary
Primary
- Anthropic: Investigating vault particles with Claudeanthropic.com, official
- Anthropic on X (Nov 4)x.com, official
Changes
- Filed