Data items in the PDBX_LINKED_ENTITY category record information about molecules composed of linked entities.
loop_ _pdbx_linked_entity.linked_entity_id _pdbx_linked_entity.name _pdbx_linked_entity.type _pdbx_linked_entity.class _pdbx_linked_entity.prd_id L1 "Actinomycin D" "Antitumor Antibiotic" "polypeptide antibiotic" PRD_000001