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- Fisher, JL, et al.
(författare)
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Comorbid conditions associated with glioblastoma
- 2014
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Ingår i: Journal of neuro-oncology. - : Springer Science and Business Media LLC. - 1573-7373 .- 0167-594X. ; 116:3, s. 585-591
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Tidskriftsartikel (refereegranskat)
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66. |
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67. |
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68. |
- Flockerzi, Aline, et al.
(författare)
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Expression pattern analysis of transcribed HERV sequences is complicated by ex vivo recombination
- 2007
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Ingår i: Retrovirology. - : Springer Science and Business Media LLC. - 1742-4690. ; 4
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Tidskriftsartikel (refereegranskat)abstract
- Background: The human genome comprises numerous human endogenous retroviruses ( HERVs) that formed millions of years ago in ancestral species. A number of loci of the HERV-K(HML-2) family are evolutionarily much younger. A recent study suggested an infectious HERV-K(HML-2) variant in humans and other primates. Isolating such a varian t from human individuals would be a significant finding for human biology. Results: When investigating expression patterns of specific HML-2 proviruses we encountered HERV-K(HML-2) cDNA sequences without proviral homologues in the human genome, named HERV-KX, that could very well support recently suggested infectious HML-2 variants. However, detailed sequence analysis, using the software RECCO, suggested that HERV-KX sequences were produced by recombination, possibly arising ex vivo, between transcripts from different HML-2 proviral loci. Conclusion: As RT-PCR probably will be instrumental for isolating an infectious HERV-K(HML2) variant, generation of "new" HERV-K(HML-2) sequences by ex vivo recombination seems inevitable. Further complicated by an unknown amount of allelic sequence variation in HERV-K(HML-2) proviruses, newly identified HERV-K(HML-2) variants should be interpreted very cautiously.
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