2017
Complete genome sequences of two strains of Treponema pallidum subsp. pertenue from Ghana, Africa: Identical genome sequences in samples isolated more than 7 years apart
STROUHAL, Michal, Lenka PAŠTĚKOVÁ, Pavla HAVLÍČKOVÁ, Paolo TENTI, Darina ČEJKOVÁ et. al.Základní údaje
Originální název
Complete genome sequences of two strains of Treponema pallidum subsp. pertenue from Ghana, Africa: Identical genome sequences in samples isolated more than 7 years apart
Autoři
STROUHAL, Michal (203 Česká republika, domácí), Lenka PAŠTĚKOVÁ (203 Česká republika, domácí), Pavla HAVLÍČKOVÁ (203 Česká republika, domácí), Paolo TENTI (380 Itálie, domácí), Darina ČEJKOVÁ (203 Česká republika), Ivan RYCHLÍK (203 Česká republika), Sylvia BRUISTEN (528 Nizozemské království) a David ŠMAJS (203 Česká republika, garant, domácí)
Vydání
PLOS Neglected Tropical Diseases, San Francisco, Public Library of Science, 2017, 1935-2735
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30309 Tropical medicine
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.367
Kód RIV
RIV/00216224:14110/17:00094932
Organizační jednotka
Lékařská fakulta
UT WoS
000412142800040
Klíčová slova anglicky
Treponema pallidum subsp pertenue
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 20. 3. 2018 14:06, Soňa Böhmová
Anotace
V originále
Treponema pallidum subsp. pertenue (TPE) is the causative agent of yaws, a multi-stage disease, endemic in tropical regions of Africa, Asia, Oceania, and South America. To date, four TPE strains have been completely sequenced including three TPE strains of human origin (Samoa D, CDC-2, and Gauthier) and one TPE strain (Fribourg-Blanc) isolated from a baboon. All TPE strains are highly similar to T. pallidum subsp. pallidum (TPA) strains. The mutation rate in syphilis and related treponemes has not been experimentally determined yet. Complete genomes of two TPE strains, CDC 2575 and Ghana-051, that infected patients in Ghana and were isolated in 1980 and 1988, respectively, were sequenced and analyzed. Both strains had identical consensus genome nucleotide sequences raising the question whether TPE CDC 2575 and Ghana-051 represent two different strains. Several lines of evidence support the fact that both strains represent independent samples including regions showing intrastrain heterogeneity (13 and 5 intrastrain heterogeneous sites in TPE Ghana-051 and TPE CDC 2575, respectively). Four of these heterogeneous sites were found in both genomes but the frequency of alternative alleles differed. The identical consensus genome sequences were used to estimate the upper limit of the yaws treponeme evolution rate, which was 4.1 x 10-10 nucleotide changes per site per generation. The estimated upper limit for the mutation rate of TPE was slightly lower than the mutation rate of E. coli, which was determined during a long-term experiment. Given the known diversity between TPA and TPE genomes and the assumption that both TPA and TPE have a similar mutation rate, the most recent common ancestor of syphilis and yaws treponemes appears to be more than ten thousand years old and likely even older.
Návaznosti
GA17-25455S, projekt VaV |
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GJ17-25589Y, projekt VaV |
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ROZV/24/LF/2016, interní kód MU |
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