2011
Genome differences between Treponema pallidum subsp. pallidum and Treponema pallidum subsp. pertenue.
ZOBANÍKOVÁ, Marie, Darina ČEJKOVÁ, Michal STROUHAL, Petra POSPÍŠILOVÁ, George M. WEINSTOCK et. al.Základní údaje
Originální název
Genome differences between Treponema pallidum subsp. pallidum and Treponema pallidum subsp. pertenue.
Autoři
ZOBANÍKOVÁ, Marie, Darina ČEJKOVÁ, Michal STROUHAL, Petra POSPÍŠILOVÁ, George M. WEINSTOCK a David ŠMAJS
Vydání
4th Congress of European Microbiologists FEMS 2011, Geneva, 26.6. – 30.6. 2011, 2011
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
Genetika a molekulární biologie
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Organizační jednotka
Lékařská fakulta
Klíčová slova česky
syfilis; yaws; T. p. pallidum ssp. pallidum; T.p. pallidum ssp. pertenue
Změněno: 17. 1. 2012 13:46, Mgr. Marie Zobaníková, Ph.D.
Anotace
V originále
Background Treponema pallidum ssp. pertenue (TPE) strains, the causative agent of yaws, are closely related to syphilis causing strains of Treponema pallidum ssp. pallidum (TPA). Although clinical symptoms of both diseases differ, bacteria of both subspecies cannot be distinguished by morphology or serology and immunology testing. The whole genome fingerprinting technique identified more than 99% DNA identity between TPA and TPE strains. Objective High quality whole genome sequences of TPE strains are required to precisely define genetic differences between TPA and TPE. Methods Whole genome sequencing methods comprising pyrosequencing (454 Life Sciences), Solexa technology (Illumina), comparative genome sequencing approach (CGS, Nimblegen) and Sanger sequencing were used for sequencing of TPE genomes (SamoaD, CDC-2, Gauthier). Whole genome sequences of TPE strains were compared to sequences of TPA strains (Nichols, Fraser et al. 1998; SS14, Matějková et al. 2007; DAL-1, unpublished). Results A set of 91 annotated TPE proteins (9.3%) contained 2 or more amino acid replacements or other major sequence changes in comparison with TPA proteins. Genes encoding putative virulence factors and hypothetical proteins contained the highest percentage of sequentially divergent proteins when compared to other proteins of known or predicted function. Altogether, 13 pseudogenes were found in the TPE genomes and two TPE genes showed reverted frameshift mutations (TP0009, TP0316). Conclusions Genomic differences between TPE and TPA pathogens were defined. Divergent genes are candidates for virulence determinants of syphilitic treponemes. The specific sequence changes are suitable targets for clinical diagnostics of individual strains.
Návaznosti
GA310/07/0321, projekt VaV |
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MSM0021622415, záměr |
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