PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6317380-1 1983 5"-Nucleotidase from bovine liver plasma membranes has been extracted by the zwitterionic detergent sulfobetaine 14, and purified to apparent homogeneity. sulfobetaine 100-112 5'-nucleotidase Bos taurus 0-15