GET /core/chem_comp/{comp_id}

rcsb.org:rcsb-pdb-api

Summary: Get chemical component data
Operation ID: getChemicalComponent
Auth: unknown
Description

Retrieve information about a chemical component (ligand, residue)

Parameters (1)

comp_id (string, path, required)

Chemical component ID (e.g., HEM, SO4)

Examples (3)

TitleTypeURLAction
Get Heme Group Component curl https://data.rcsb.org/core/chem_comp/HEM
Get Sulfate Ion Component curl https://data.rcsb.org/core/chem_comp/SO4
Get ATP Molecule Component curl https://data.rcsb.org/core/chem_comp/ATP

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-03-23 10:32:46.327414 404 362ms
2026-03-23 10:21:15.910293 404 345ms
2026-03-23 09:07:01.959711 404 332ms

Response Changes

WhenOldNew
2026-03-23 10:21:15.910293 a68f6087d0e9 38e642f4104e
2026-03-23 10:32:46.327414 38e642f4104e 6c5658f8a91f