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Full-Text Articles in Medicine and Health Sciences
Glycosyltransferases Involved In The Glycosylation Of Serine-Rich Glycoproteins From Streptococci, Fan Zhu
Glycosyltransferases Involved In The Glycosylation Of Serine-Rich Glycoproteins From Streptococci, Fan Zhu
All ETDs from UAB
Serine - rich repeat glycoproteins (SRRPs) play important roles in mediating bac-terial attachment to a variety of host and microbial surfaces. They have been im-plicated in the development of tissue infections such as pneumonia, infective en-docarditis, meningitis and oral infectious diseases. Streptococcus parasanguinis, one of the commensal streptococci present in the oral cavity, utilizes its fimbriae to mediate the initial attachment to the tooth pellicle. Fap1 (Fimbriae-associated-protein 1), the first identified SRRP, is the subunit of the fimbriae which utilizes proteins encoded by an 11-gene cluster (gly-gtf3-dGT1-galT2 and secY2-gap1-gap2-gap3-secA2-gtf1-gtf2) to mediate its glycosylation and secretion. The key enzymes responsible for …
The Role Of Hydrogen Peroxide In The Modulation Of Capsule Biosynthesis In Streptococcus Pneumoniae Serotype 2, Jocelyn Renee Hauser
The Role Of Hydrogen Peroxide In The Modulation Of Capsule Biosynthesis In Streptococcus Pneumoniae Serotype 2, Jocelyn Renee Hauser
All ETDs from UAB
Streptococcus pneumoniae is a gram-positive bacterial pathogen that causes diseases such as pneumonia, meningitis, bacteremia and middle ear infections. The major virulence factor of S. pneumoniae is its polysaccharide capsule. The capsule enables the organism to evade host defenses by providing protection against complement-mediated opsonophagocytosis in systemic sites and by allowing the organism to successfully colonize the nasopharynx. The nasopharynx is the natural reservoir of S. pneumoniae. In the nasopharynx, S. pneumoniae is in a high oxygen (O2) environment, however when it has the opportunity to bypass host defenses and invade systemic sites, it reaches environments with low O2. Capsule …