Anthropic Says Claude Helped Scientists Map a Mysterious Cell Structure

Anthropic says its biology research team has produced the first three-dimensional map of a vault-like particle originating from a bacterial virus, potentially giving scientists a new way to investigate one of biology’s long-standing mysteries.

The company said in a recent research report that Claude was used throughout the project, helping researchers search protein databases, design experimental constructs and speed up protein purification and structural modeling.

Anthropic explained that vaults are large, hollow protein structures found across complex organisms. Despite being discovered decades ago, their biological function remains poorly understood.

The research team has not yet determined what vaults actually do. However, it found that related proteins found in bacteria and the viruses that infect them can assemble into complete vault-like structures, potentially offering scientists a simpler system to study how these particles work.

Claude Helps Researchers Decode a Complex Protein Structure

Anthropic’s team studied a vault-like structure built from L05, a protein produced by bacteriophages, or viruses that infect bacteria.

Researchers found that the structure is made up of 96 copies of the same protein, which change shape near the top to help the shell close. To understand how the structure forms, the team tested 15 modified versions of the protein and found that even small changes to certain areas could prevent the shell from closing, leaving it partially open.

Researchers also managed to engineer larger versions by duplicating parts of the protein, increasing the structure’s internal volume by about 20%.

The findings suggest vault-like particles may be able to change size while maintaining the same basic assembly process, potentially giving scientists a useful new model for studying these mysterious structures.

Anthropic Sees Potential for AI in Scientific Discovery

The findings highlight Anthropic’s broader push to position Claude as a tool for scientific research, extending beyond traditional applications such as coding, writing and workplace productivity.

Rather than simply using AI to summarize existing research, the team incorporated Claude into multiple stages of the experimental process, from identifying promising proteins to helping interpret structural data.

The research has not yet undergone peer review. Anthropic said it submitted a preprint to bioRxiv and plans to release the underlying structures and additional datasets so other researchers can investigate the findings.

“Figuring out the function of vaults is still enormously challenging. I am pleased that Anthropic has so much good data. Now, other people will be working on this problem,” said Dr. Leonard Rome, who co-discovered vault particles in 1986 and advised Anthropic on the research as a paid consultant, providing feedback on the manuscript.

He added that the breadth of Anthropic’s findings suggests vaults could have a complicated biological function, making the research an important starting point for further investigation.

While the discovery does not solve the mystery surrounding vaults, it gives scientists a new experimental model and demonstrates how AI-assisted research could help tackle biological questions that have remained unanswered for decades.

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