Analyzing Neisseria gonorrhoeae Pilin Antigenic Variation Using 454 Sequencing Technology
نویسندگان
چکیده
منابع مشابه
Frequency of pilin antigenic variation in Neisseria gonorrhoeae.
Variation of the pilus of Neisseria gonorrhoeae occurs by the recombination of silent pilin DNA sequences into the pilin expression locus. We have developed a quantitative, competitive reverse transcription-PCR assay which measures the frequency of pilin antigenic variation independently of changes in gonococcal colony morphology and have determined this frequency within a gonococcal population...
متن کاملPilin antigenic variation occurs independently of the RecBCD pathway in Neisseria gonorrhoeae.
Type IV pilus expression has been strongly implicated in the virulence of Neisseria gonorrhoeae, the causative agent of gonorrhea. In Neisseria, these pili undergo frequent antigenic variation (Av), which is presumed to allow reinfection of high-risk groups. Pilin Av is the result of RecA-mediated recombination events between the gene encoding the major pilin subunit (pilE) and multiple silent ...
متن کاملFocusing homologous recombination: pilin antigenic variation in the pathogenic Neisseria.
Some pathogenic microbes utilize homologous recombination to generate antigenic variability in targets of immune surveillance. These specialized systems rely on the cellular recombination machinery to catalyse dedicated, high-frequency reactions that provide extensive diversity in the genes encoding surface antigens. A description of the specific mechanisms that allow unusually high rates of re...
متن کاملFrequency and rate of pilin antigenic variation of Neisseria meningitidis.
The rates of pilin antigenic variation (Av) of two strains of Neisseria meningitidis were determined using an unbiased DNA sequencing assay. Strain MC58 underwent pilin Av at a rate similar to that of N. gonorrhoeae strain MS11 but lower than that of N. gonorrhoeae strain FA1090. Pilin Av was undetectable in strain FAM18.
متن کاملGenetic basis of Neisseria gonorrhoeae lipooligosaccharide antigenic variation.
Neisseria gonorrhoeae lipooligosaccharide (LOS) undergoes antigenic variation at a high rate, and this variation can be monitored by changes in a strain's ability to bind LOS-specific monoclonal antibodies. We report here the cloning and identification of a gene, lsi-2, that can mediate this variation. The DNA sequence of lsi-2 has been determined for N. gonorrhoeae 1291, a strain that expresse...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2016
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.00330-16