Abstract
Wall teichoic acid (WTA) was isolated from Enterococcus faecium strain U0317 and structurally characterized using 1H, 13C, and 31P NMR spectroscopy, including two-dimensional COSY, TOCSY, ROESY, HMQC, and HMBC experiments. Further compositional determination was undertaken using classical chemical methods and HF treatment followed by GLC and GLC–MS analyses. The repeating unit of WTA consisted of two residues of 2-acetamido-2-deoxy- d-galactose, glycerol (Gro), and phosphate, and has the structure shown below: → 6 ) - α - d-Gal p NAc- ( 1 → 3 ) - β - d-Gal p NAc- ( 1 → 2 ) -Gro- ( 3 → P →
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