PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21992228-5 2012 Fluorescence microscopy revealed that the preS1 ligand delivered the fluorescein-labelled VLPs into the HepG2 cells efficiently. Fluorescein 69-80 large envelope protein;middle envelope protein;small envelope protein Hepatitis B virus 42-47 21992228-7 2012 The preS1 ligand was exposed on the surface of the VLPs and was shown to deliver fluorescein molecules into liver cells. Fluorescein 81-92 large envelope protein;middle envelope protein;small envelope protein Hepatitis B virus 4-9