Genome Analysis Reveals Pili in Group B Streptococcus

Author:

Lauer Peter12,Rinaudo Cira D.12,Soriani Marco12,Margarit Immaculada12,Maione Domenico12,Rosini Roberto12,Taddei Anna Rita12,Mora Marirosa12,Rappuoli Rino12,Grandi Guido12,Telford John L.12

Affiliation:

1. Chiron Srl, Via Fiorentina 1, 53100 Siena, Italy.

2. Centro Interdipartimentale di Microscopia Elettronica, University of Tuscia, Viterbo, Italy.

Abstract

Pili are essential virulence factors in many Gram-negative bacteria; however, they have not been described in most important Gram-positive pathogens. While screening the sequence of multiple genomes of Group B Streptococcus , we identified protective antigens that formed high molecular weight polymers. Immunogold electron microscopy revealed that the structures have a pilus-like form. These large structures have gone unrecognized in decades of studies of Group B Streptococcus .

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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