the lewis a antigen ( lea ) - and lewis b antigen ( leb ) -active glycolipids and glycoproteins in normal colon mucosa , colon carcinoma tumors , and gastrointestinal tumor cell lines were studied by using monoclonal antibodies against lewis determinants in solid-phase radioimmunoassay , chromatogram binding assay , and immunoprecipitation/page .
C0535350
leb
C0017968
glycoproteins