the pentasaccharide hapten of the dominant glycopeptidolipid antigen of serovariant 19 of the mycobacterium avium complex is noteworthy because of the uniqueness of its distal glycobiose , the presumed antigen determinant , which contains a 3,4-di-o-methyl glucuronic acid and a novel branched sugar .
C0018593
hapten
C0003316
antigen determinant