Duplication of Teichoic Acid Biosynthetic Genes in Staphylococcus aureus Leads to Functionally Redundant Poly(Ribitol Phosphate) Polymerases

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Duplication of teichoic acid biosynthetic genes in Staphylococcus aureus leads to functionally redundant poly(ribitol phosphate) polymerases.

Wall teichoic acids are anionic phosphate-rich polymers that are part of the complex meshwork of carbohydrates that make up the gram-positive cell wall. These polymers are essential to the proper rod-shaped morphology of Bacillus subtilis and have been shown to be an important virulence determinant in the nosocomial opportunistic pathogen Staphylococcus aureus. Together, sequence-based studies,...

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Late-stage polyribitol phosphate wall teichoic acid biosynthesis in Staphylococcus aureus.

Wall teichoic acids are cell wall polymers that maintain the integrity of the cellular envelope and contribute to the virulence of Staphylococcus aureus. Despite the central role of wall teichoic acid in S. aureus virulence, details concerning the biosynthetic pathway of the predominant wall teichoic acid polymer are lacking, and workers have relied on a presumed similarity to the putative poly...

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Glycosylation of wall teichoic acid in Staphylococcus aureus by TarM.

Wall teichoic acid (WTA) glycopolymers are major constituents of cell envelopes in Staphylococcus aureus and related gram-positive bacteria with important roles in cell wall maintenance, susceptibility to antimicrobial molecules, biofilm formation, and host interaction. Most S. aureus strains express polyribitol phosphate WTA substituted with D-alanine and N-acetylglucosamine (GlcNAc). WTA suga...

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Wall Teichoic Acid Glycosylation Governs Staphylococcus aureus Nasal Colonization

UNLABELLED Nasal colonization by the human pathogen Staphylococcus aureus is a major risk factor for hospital- and community-acquired infections. A key factor required for nasal colonization is a cell surface-exposed zwitterionic glycopolymer, termed wall teichoic acid (WTA). However, the precise mechanisms that govern WTA-mediated nasal colonization have remained elusive. Here, we report that ...

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Teichoic acids in pathogenic Staphylococcus aureus.

Twenty-six strains of Staphylococcus aureus obtained from patients with endocarditis were studied for the production of alpha- and/or beta-ribitol teichoic acid (TA), using highly specific anti-TA antibodies prepared in rabbits. A counterimmunoelectrophoretic assay was used. Beta-TA was the predominant residue produced by all strains; alpha-TA was found in all strains, but in smaller amounts an...

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ژورنال

عنوان ژورنال: Journal of Bacteriology

سال: 2008

ISSN: 0021-9193,1098-5530

DOI: 10.1128/jb.00526-08