PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7887901-5 1995 Both elements are, however, responsive to 9-cis-retinoic acid in the presence of RXR alpha, when tested in the co-transfection assay. Alitretinoin 42-61 retinoid X receptor alpha Rattus norvegicus 81-90