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Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer
Published on: November 2, 2013
Reliable classification and recombination analysis of porcine endogenous retroviruses
Nikolai Klymiuk1, Bernhard Aigner
1Institute of Molecular Animal Breeding and Biotechnology, Ludwig-Maximilians-University, Munich, Germany.
Abstract:
Prevention of cross-species infection with porcine endogenous retroviruses (PERV) is crucial for xenotransplantation. Previous studies described the potential risk of infection for the PERV gamma1 subfamilies A, B and C. Replication competent PERV gamma1 proviruses designated to a particular subfamily and hybrid viruses originating from retroviral recombination events between the subfamilies were observed. Future pig genome sequencing projects will reveal multiple novel PERV proviruses from additional breeds and animals. Evaluation of these viral genomes has to be carried out to assess the potential risk of retroviral cross-species infection. In this study, we tested common sequence comparison methods for the classification of PERV sequences and the detection of hybrid clones. The examination of the polymorphic nucleotide positions was found to be the most suitable procedure. We describe a fast and simple method using bioinformatic software tools which can also be applied to analogous analyses of other viral genomes.
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