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. 1992 Mar:(3):10-3.

[Plasmid composition of Yersinia pestis strains from different natural foci]

[Article in Russian]
A A Filippov, N S Solodovnikov, L M Kukleva, O A Protsenko
  • PMID: 1509839

[Plasmid composition of Yersinia pestis strains from different natural foci]

[Article in Russian]
A A Filippov et al. Zh Mikrobiol Epidemiol Immunobiol. 1992 Mar.

Abstract

The study of the plasmid composition of 246 Y. pestis strains from different natural foci in the USSR and other countries revealed that 173 strains (70%) carried three known plasmids with a molecular weight of about 6, 45-50 and 60 megadaltons (MD) respectively. In 20 strains (8%) obtained from different sources additional cryptic plasmids were detected. In some cases the absence of one or two typical plasmids was observed. Replicon pPst was shown to have quite constant molecular weight (6 MD), whereas plasmids pCad and especially pFra exhibited certain variations of their molecular weight (45-49 MD and 60-149 MD respectively) in strains of different origin.

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