Genome Analysis Reveals Pili in Group B Streptococcus

P Lauer, CD Rinaudo, M Soriani, I Margarit, D Maione… - Science, 2005 - science.org
P Lauer, CD Rinaudo, M Soriani, I Margarit, D Maione, R Rosini, AR Taddei, M Mora…
Science, 2005science.org
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.
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.
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