PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9274022-3 1997 Two principal families of cytoplasmic-membrane transport systems appear to drive polysaccharide export: polysaccharide-specific transport (PST) systems and ATP-binding cassette-2 (ABC-2) systems. Polysaccharides 81-95 ATP binding cassette subfamily A member 2 Homo sapiens 156-178 9274022-3 1997 Two principal families of cytoplasmic-membrane transport systems appear to drive polysaccharide export: polysaccharide-specific transport (PST) systems and ATP-binding cassette-2 (ABC-2) systems. Polysaccharides 81-95 ATP binding cassette subfamily A member 2 Homo sapiens 180-185