the carbohydrate antigen termed lex ( gal beta 1 -- -- 4 [ fuc alpha 1 -- -- 3 ] glcnac beta 1 -- -- r ) , its di- or trimeric form , and their sialylated antigens have been characterized as developmentally regulated , tumor-associated antigens in human gastrointestinal epithelia .
C3538902
di
C0086418
human