RealWorldMCP
Labs & biology · 2 tools

RCSB Protein Data Bank

Search and read 3D structures of proteins, DNA and RNA solved by labs worldwide.

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Notes. Data are CC0 1.0; RCSB asks users to attribute the original structure authors. Terms checked 2026-11-02.

3D structure details

rcsb_pdb.structure
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Details for one PDB entry: title, experimental method, resolution, release date, authors, citation, molecules with chains, organisms and UniProt links, plus download links.

Inputs

NameTypeDescription
pdb_idrequiredstring4-character PDB ID, e.g. "4HHB"

Example output

{"found":true,"pdb_id":"4HHB","title":"THE CRYSTAL STRUCTURE OF HUMAN DEOXYHAEMOGLOBIN AT 1.74 ANGSTROMS RESOLUTION","keywords":"OXYGEN TRANSPORT","method":["X-RAY DIFFRACTION"],"resolution_angstrom":1.74,"molecular_weight_kda":64.74,"deposited_atoms":4779,"deposited":"1984-03-07","released":"1984-07-17","authors":["Fermi, G.","Perutz, M.F."],"citation":{"title":"The crystal structure of human deoxyhaemoglobin at 1.74 A resolution","journal":"J.Mol.Biol.","year":1984,"doi":null,"pubmed":null},"entities":[{"entity":"1","description":"Hemoglobin subunit alpha","organism":"Homo sapiens","chain...

Data license

CC0 1.0 · Data from the RCSB Protein Data Bank (RCSB.org), CC0 1.0. Please cite the original authors of each structure. Source

Try it

4-character PDB ID, e.g. "4HHB"
Free public data

Call it

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "rcsb_pdb.structure",
    "arguments": {
      "pdb_id": "4HHB"
    }
  }
}