polymer_entity

Active

declared in 0.1.0

"Chain [N] of PDB [ID]" / "sequence of chain in [pdb_id]" — fetch the polymer-entity (protein/DNA/RNA chain) metadata for a specific PDB entry. Returns sequence, source organism, UniProt cross-references, GO annotations. Use to drill into one chain of a multi-chain structure.

Parameters schema

{
  "type": "object",
  "examples": [
    {
      "pdb_id": "1abc",
      "entity_id": "1"
    }
  ],
  "required": [
    "pdb_id",
    "entity_id"
  ],
  "properties": {
    "pdb_id": {
      "type": "string"
    },
    "entity_id": {
      "type": "string"
    }
  }
}

What this tool wraps· 2 endpoints

min confidence0.70 0.50

Data resourceRCSB PDB Data API
RCSB · science
schema key0.85
Data resourceUniProt REST API
UniProt Consortium · science
name mention0.70

Parent server

mcp-rcsb-pdb

https://github.com/pipeworx-io/mcp-rcsb-pdb

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