PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6295180-3 1983 The presence of 5"-nucleotidase on the cytoplasmic surface was verified by using sucrose continuous gradients to show its association with the photoreceptors and by using disk preparation and concanavalin A binding to demonstrate its presence on the extradiscal surface. Sucrose 81-88 5'-nucleotidase Bos taurus 16-31