_pdbx_investigation.id FH123 _pdbx_investigation.type "Fragment Screening" _pdbx_investigation.db frag_hub _pdbx_investigation.project fh123456 _pdbx_investigation.title "Frag Screen Investigation XYZ" _pdbx_investigation.details "Fragment screening project for Hemoglobin" _pdbx_investigation.external_url https://www.fragscreen-facility.org/123456789