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J Bacteriol. 1983 July; 155(1): 138-144

Increased carbohydrate substitution of lipoteichoic acid during inhibition of protein synthesis.

ABSTRACT

Decreases in electrophoretic mobilities of intracellular lipoteichoic acid, intracellular deacylated lipoteichoic acid, and extracellular deacylated lipoteichoic acid were observed during inhibition of protein synthesis in Streptococcus faecium after exposure to chloramphenicol or valine deprivation. Increased carbohydrate content, and thus an increased mass-to-charge ratio, rather than changes in ester alanine content or novel fatty acid substitutions, appeared to account for the decreased electrophoretic mobilities. The increase in carbohydrate content, as judged from mobility measurements, was progressive over time and appeared to occur on biosynthetically new lipoteichoic acid as well as on lipoteichoic acid made before inhibition of protein synthesis.

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