2-Acetamido-2-deoxy-glucose

Baddiley and coworkers42 have studied the structure of S13, which is composed of D-galactose, D-glucose, 2-acetamido-2-deoxy-D-glucose, and ribitol residues, and phosphate groups in the molar proportions 2 1 1 1 1. O-Acetyl groups are also present. A neutral pentasaccharide was obtained by hydrolysis with alkali, followed by enzymic dephosphorylation. On mild, acid hydrolysis, this yielded two main products, a trisaccharide (19) and a disaccharide (20), the structures of which were determined by conventional methods. 

In plants a linkage between 4-hydroxy-L-proline and L-arabinose and in halobacteria a linkage between L-asparagine and D-Glucose/2-acetamido-2-deoxy-D-galactose has been reported. 

Reeder and Eckstedt389 studied the interaction of con A with teichoic acids from Staphylococcus aureus and Staphylococcus epidermidis by gel diffusion, and precipitation in a fluid system. The teichoic acid from strain Tj of S. epidermidis contains a-D-glucopyranosyl residues, and it precipitated with con A, whereas strain T2, which is /3-D-glucosylated, did not. Classical precipitin curves resulted when con A interacted with strains T2 and 412 (also a-D-glucosylated) the precipitation was specifically inhibited by D-glucose, 2-acetamido-2-deoxy-D-glucose, and methyl a- and /3-D-glucopyranosides.389... 

An unusual glycoprotein, isolated from the spores of Ustilago tritia, contains residues of L-fucose, 2-acetamido-2-deoxy-D-glucose, 2-acetamido-2-deoxy-D-galactose, D-galactose, D-glucose, and D-mannose. ... 

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