Document Detail


Novel HPV-6 variants of human papillomavirus causing recurrent respiratory papillomatosis in southern Africa.
MedLine Citation:
PMID:  21875449     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
SUMMARYThere is currently no information regarding the genetic diversity of HPV-6 variants circulating in South Africa. The aim of this study was to determine the HPV-6 variants affecting patients with recurrent respiratory papillomatosis, to determine whether mutations correlate with disease severity and identify molecular determinants of virulence with prognostic relevance. HPV-6 variants were identified based on genome changes within the 712-991 bp region encompassing the non-coding region (URR) of the genome, with variations in length resulting from insertions and duplications, and the 453-bp gene encoding the E6 protein. Based on manual comparison of sequence data from the URR, the isolates were identified as HPV-6a and HPV-6vc variants. Three novel HPV-6 variants were identified: one based on a mutation in the E6 region; two based on changes in the URR including a unique substitution detected in three isolates and an insertion and 170-bp duplication in the URR genome in one patient, who had clinical features of severe disease.
Authors:
C E Combrinck; R Y Seedat; C Randall; Y Roodt; F J Burt
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-30
Journal Detail:
Title:  Epidemiology and infection     Volume:  -     ISSN:  1469-4409     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8703737     Medline TA:  Epidemiol Infect     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-7     Citation Subset:  -    
Affiliation:
Department of Medical Microbiology and Virology, Faculty of Health Science, University of the Free State, Bloemfontein, South Africa.
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