Streptococcus pneumoniae is a member of the Mitis group of streptococci which, according
to 16S rRNA-sequence based phylogenetic reconstruction, includes 12 species. While other …

The molecular basis of the pathogenesis of the opportunistic invasive infections caused by
isolates of the Gemella genus remains largely unknown. Moreover, inconsistencies in the …

Gemella species are core members of the human oral microbiome in healthy subjects and
are regarded as commensals, although they can cause opportunistic infections. Our …

The distribution, genome location, and evolution of the four paralogous zinc
metalloproteases, IgA1 protease, ZmpB, ZmpC, and ZmpD, in Streptococcus pneumoniae …

Data on structure and specificity of bacterial IgA receptors (IgA-binding M-like proteins Arp4
and Sir22 from hemolytic streptococci of serogroup A, β-antigen from hemolytic streptococci …

We herein present the case presenting to our facility complaining of a fever of two months
duration, who underwent dental procedure. Patient was diagnosed with infective …

Background Successful commensal bacteria have evolved to maintain colonization in
challenging environments. The oral viridans streptococci are pioneer colonizers of dental …

The mucosal adaptive immune response is dependent on the production of IgA antibodies
and particularly IgA1, yet opportunistic bacteria have evolved mechanisms to specifically …

Infective endocarditis (IE) caused by Gemella morbillorum is rare. Consequently, little is
known about the natural course of endocarditis caused by this pathogen. This report …

Abstract Background The IgA1 protease of Streptococcus pneumoniae is a proteolytic
enzyme that specifically cleaves the hinge regions of human IgA1, which dominates most …