PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6162544-5 1980 Presumably, ara-AMP molecules were hydrolyzed by the nonspecific phosphatases and 5"-nucleotidase found in the serum or by the ecto-5"-nucleotidase on the outer surface of the membrane and only enter the mammalian cells as 9-beta-D-arabinofuranosyladenine. Vidarabine Phosphate 12-19 5'-nucleotidase ecto Homo sapiens 127-147