PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32538077-5 2020 Upon removal of the galactosyl group in MUGF by beta-galactosidase labeling of the target cell surface proteins, the resulting product containing the quinone methide group was found to be both cell-membrane-permeable and reactive with intracellular nucleophiles, thereby providing fluorescent adducts. quinone 150-157 galactosidase beta 1 Homo sapiens 48-66