AglO, AglA, AglL are glycosyltransferases responsible for tetrasaccharide assembly. AglO adds the second sugar, AglA adds the third sugar, and AglL transfers the last sugar. MMP0350 (acetyltransferase-second sugar ), MMP1081 (Acetamidino transfer-third sugar), MMP1085 (Methyltransferase-fourth sugar). MMP1081 and MMP1085 are unpublished results as referred in ref 4 Characterized by gene deletion studies
Sug, a novel monosaccharide unit, (5S)-2-acetamido-2,4-dideoxy-5-O-methyl-α-L-erythro-hexos-5-ulo-1,5-pyranose is the first example of a naturally occuring diglycoside of an aldulose.