The structure of the wall teichoic acid isolated from Enterococcus faecalis strain 12030

Wall teichoic acid (WTA) was isolated from Enterococcus faecalis 12030, a clinical isolate and biofilm-producing strain, and analyzed using compositional chemical methods, nuclear magnetic resonance spectroscopy, and mass spectrometry. The repeating units of WTA were composed of d-glucose, d-galactose, 2-acetamido-2-deoxy-d-galactose, 2-acetamido-2-deoxy-d-glucose, d-ribitol, and phosphate in a molar ratio 1:2:1:1:1:1, and had the structure given below.