Sialyl Tn or STn (Neu5Acα2-6GalNAcα-O-Ser) at Ser140 and Neu5Acα2-6GalNAcα-O-Thr at Thr139
C10H20N2O6 / 264
3)LacNAc-β-Butyl-Carboxylic Acid / Galα(1
15 aa length) with GalNAc at ser341
Used as a chromogenic substrate for α-glucosidases with kojibiose / α1-2 linkage selectivity (e
MS000020: Pseudaminic Acid Pack Size:1 mg Sialyl Tn or STn (Neu5Acα2-6GalNAcα-O-Ser)C13H22N2O8 334. 32 Pseudaminic acid (Pse, 5,7 diacetamido 3,5,7,9 tetradeoxy L glycero L manno nonulosonic acid) is a bacterial nine carbon nonulosonic acid structurally related to sialic acid (Neu5Ac) but found exclusively in prokaryotes, where it caps surface glycans, flagellins, and lipopolysaccharides of Gram negative pathogens such as Campylobacter, Helicobacter, Pseudomonas, and Acinetobacter. As a non mammalian sialic acid analog, pseudaminic