Staphylococcus aureus infection elicits antibodies against wall teichoic acid (WTA). Several glycosyltransferases modify WTA to generate anomeric heterogeneity. In recent work, Gerlach et al. (2018) show that modification by prophage-encoded TarP diminishes WTA immunogenicity, allowing staphylococci to evade host adaptive immune responses, and propose to exploit these insights for vaccines.
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