Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil
Pathogenic Yersinia pestis isolates were collected during a plague outbreak at the Paraiba State in 1986. The Y. pestis isolates were investigated for the presence of virulence-associated factors and plasmid content. All strains analysed were proficient in the expression of the VW and fraction 1 ant...
Published in: | Revista do Instituto de Medicina Tropical de São Paulo |
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Universidade de São Paulo (USP)
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ftdoajarticles:oai:doaj.org/article:259076ff2e084026a941cc54e69a42f6 2024-09-09T19:28:30+00:00 Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil Nilma Cintra Leal Alzira Maria Paiva de Almeida Luís Carlos de Souza Ferreira 1989-10-01T00:00:00Z https://doi.org/10.1590/S0036-46651989000500001 https://doaj.org/article/259076ff2e084026a941cc54e69a42f6 EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651989000500001 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651989000500001 0036-4665 1678-9946 https://doaj.org/article/259076ff2e084026a941cc54e69a42f6 Revista do Instituto de Medicina Tropical de São Paulo, Vol 31, Iss 5, Pp 295-300 (1989) Yersinia pestis plasmids virulence-associated factors Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1989 ftdoajarticles https://doi.org/10.1590/S0036-46651989000500001 2024-08-05T17:49:30Z Pathogenic Yersinia pestis isolates were collected during a plague outbreak at the Paraiba State in 1986. The Y. pestis isolates were investigated for the presence of virulence-associated factors and plasmid content. All strains analysed were proficient in the expression of the VW and fraction 1 antigens, pigment adsorption and pesticin-fibronolysin-coagulase production. A similar plasmid profile composed by four plasmid with molecular weight of 60, 44, 14.9, and 6.4 Megadaltons (MD) was found in all strains. DNA cleavage with EcoRI restriction enzyme further demonstrated the uniform plasmid content of the Y. pestis isolates. Seven additional Y. pestis strains, previously isolated in the same region but in an endemic state, showed the same plasmid fingerprint. The lack of any detectable difference between epidemic and endemic isolates as well as the value of plasmid fingerprints in epidemiology of Y. pestis is discussed. Cepas patogênicas de Yersinia pestis foram coletadas durante um surto de peste no Estado da Paraíba em 1986. Os isolados de Y. pestis foram analisados quanto a presença de fatores associados à virulência e conteúdo plasmidial. Todas as linhagens analisadas foram proficientes na expressão dos antígenos VW e fração 1, além de possuírem capacidade de adsorção de pigmentos e produção de pesticina-fibrinolisina-coagulase. Um perfil plasmidial semelhante composto por quatro plasmídeos com peso molecular de 60, 44, 14.9, e 6.4 MD foi encontrado em todas as linhagens. A clivagem do DNA plasmidial com a enzima de restrição EcoRI demonstrou o conteúdo plasmidial uniforme dos isolados de Y. pestis. Sete outras linhagens de Y. pestis, isoladas previamente no mesmo local mas em condição endêmica, mostraram o mesmo perfil plasmidial. A falta de diferenças entre os isolados epidêmicos e endêmicos assim como o uso do perfil plasmidial na epidemiologic de Y. pestis e discutida. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic The ''Y'' ENVELOPE(-112.453,-112.453,57.591,57.591) Revista do Instituto de Medicina Tropical de São Paulo 31 5 295 300 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Yersinia pestis plasmids virulence-associated factors Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
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Yersinia pestis plasmids virulence-associated factors Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Nilma Cintra Leal Alzira Maria Paiva de Almeida Luís Carlos de Souza Ferreira Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil |
topic_facet |
Yersinia pestis plasmids virulence-associated factors Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Pathogenic Yersinia pestis isolates were collected during a plague outbreak at the Paraiba State in 1986. The Y. pestis isolates were investigated for the presence of virulence-associated factors and plasmid content. All strains analysed were proficient in the expression of the VW and fraction 1 antigens, pigment adsorption and pesticin-fibronolysin-coagulase production. A similar plasmid profile composed by four plasmid with molecular weight of 60, 44, 14.9, and 6.4 Megadaltons (MD) was found in all strains. DNA cleavage with EcoRI restriction enzyme further demonstrated the uniform plasmid content of the Y. pestis isolates. Seven additional Y. pestis strains, previously isolated in the same region but in an endemic state, showed the same plasmid fingerprint. The lack of any detectable difference between epidemic and endemic isolates as well as the value of plasmid fingerprints in epidemiology of Y. pestis is discussed. Cepas patogênicas de Yersinia pestis foram coletadas durante um surto de peste no Estado da Paraíba em 1986. Os isolados de Y. pestis foram analisados quanto a presença de fatores associados à virulência e conteúdo plasmidial. Todas as linhagens analisadas foram proficientes na expressão dos antígenos VW e fração 1, além de possuírem capacidade de adsorção de pigmentos e produção de pesticina-fibrinolisina-coagulase. Um perfil plasmidial semelhante composto por quatro plasmídeos com peso molecular de 60, 44, 14.9, e 6.4 MD foi encontrado em todas as linhagens. A clivagem do DNA plasmidial com a enzima de restrição EcoRI demonstrou o conteúdo plasmidial uniforme dos isolados de Y. pestis. Sete outras linhagens de Y. pestis, isoladas previamente no mesmo local mas em condição endêmica, mostraram o mesmo perfil plasmidial. A falta de diferenças entre os isolados epidêmicos e endêmicos assim como o uso do perfil plasmidial na epidemiologic de Y. pestis e discutida. |
format |
Article in Journal/Newspaper |
author |
Nilma Cintra Leal Alzira Maria Paiva de Almeida Luís Carlos de Souza Ferreira |
author_facet |
Nilma Cintra Leal Alzira Maria Paiva de Almeida Luís Carlos de Souza Ferreira |
author_sort |
Nilma Cintra Leal |
title |
Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil |
title_short |
Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil |
title_full |
Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil |
title_fullStr |
Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil |
title_full_unstemmed |
Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil |
title_sort |
plasmid composition and virulence-associated factors of yersinia pestis isolates from a plague outbreak at the paraíba state, brazil composição plasmidial e fatores associados à virulência em cepas de yersinia pestis de um surto de peste no estado da paraíba, brasil |
publisher |
Universidade de São Paulo (USP) |
publishDate |
1989 |
url |
https://doi.org/10.1590/S0036-46651989000500001 https://doaj.org/article/259076ff2e084026a941cc54e69a42f6 |
long_lat |
ENVELOPE(-112.453,-112.453,57.591,57.591) |
geographic |
Arctic The ''Y'' |
geographic_facet |
Arctic The ''Y'' |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 31, Iss 5, Pp 295-300 (1989) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651989000500001 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651989000500001 0036-4665 1678-9946 https://doaj.org/article/259076ff2e084026a941cc54e69a42f6 |
op_doi |
https://doi.org/10.1590/S0036-46651989000500001 |
container_title |
Revista do Instituto de Medicina Tropical de São Paulo |
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31 |
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5 |
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295 |
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300 |
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