alexa Stability of molluscum contagiosum virus DNA among 184 patient isolates: evidence for variability of sequences in the terminal inverted repeats.
Infectious Diseases

Infectious Diseases

Journal of Tropical Diseases & Public Health

Author(s): Bugert JJ, Darai G

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Abstract The stability of the Molluscum contagiosum virus Type 1 genome (188 kbp) was studied in 184 DNA isolates from 131 patients. Variability of up to 1.5 kbp at both ends of the genome symmetrically was observed using restriction analysis of the DNA isolates and by Southern Blot experiments using cloned and labeled HindIII terminal DNA fragments of MCV-1 prototype DNA. The variable sequences were mainly confined to the terminal fragments and parts of the MCV-1 terminal repeats. Labeled probes did not detect terminal sequences of MCV Type 2 under the applied stringency. A less marked instability of the central MCV-1 BamHI DNA fragment F was observed within the genome coordinates 0.431 to 0.454 mu. Reiteration of tandem repeats similar to those described for vaccinia virus might explain the variability of the terminal sequences and might be involved in viral replication.
This article was published in J Med Virol and referenced in Journal of Tropical Diseases & Public Health

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