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RCSB PDB

The Protein Data Bank: every experimentally determined structure.

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RCSB PDB

RCSB · rcsb.org

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The Protein Data Bank: every experimentally determined structure.
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Anywhere an experimental structure exists. Check here before predicting anything — a measured structure beats a predicted one.

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External tool. We link, we don’t host — nothing you enter on Biology 101 reaches them.

About this tool

The primary archive of experimental macromolecular structures, with search, sequence and ligand tools layered on top.

Science last reviewed .