Analysis of the Drosophila gypsy endogenous retrovirus envelope glycoprotein
نویسندگان
چکیده
منابع مشابه
Evolution of the Gypsy endogenous retrovirus in the Drosophila melanogaster subgroup.
We conducted a phylogenetic survey of the endogenous retrovirus Gypsy in the eight species of the Drosophila melanogaster subgroup. A 362-bp fragment from the integrase gene (int) was amplified, cloned, and sequenced. Phylogenetic relationships of the elements isolated from independent clones were compared with the host phylogeny. Our results indicate that two main lineages of Gypsy exist in th...
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UNLABELLED The endosymbiotic bacteria of the genus Wolbachia are present in most insects and are maternally transmitted through the germline. Moreover, these intracellular bacteria exert antiviral activity against insect RNA viruses, as in Drosophila melanogaster, which could explain the prevalence of Wolbachia bacteria in natural populations. Wolbachia is maternally transmitted in D. melanogas...
متن کاملComparative and functional studies of Drosophila species invasion by the gypsy endogenous retrovirus.
Gypsy is an endogenous retrovirus of Drosophila melanogaster. Phylogenetic studies suggest that occasional horizontal transfer events of gypsy occur between Drosophila species. gypsy possesses infective properties associated with the products of the envelope gene that might be at the origin of these interspecies transfers. We report here the existence of DNA sequences putatively encoding full-l...
متن کاملProtein determinants of insertional specificity for the Drosophila gypsy retrovirus.
The gypsy retrovirus invades the germ line of Drosophila females, inserting with a high frequency into the ovo locus. Gypsy insertion sites in ovo are clustered within a region in the promoter of the ovo gene that contains multiple binding sites for the OvoA and OvoB proteins. We found that a 1.3-kb DNA fragment containing this region is able to confer gypsy insertional specificity independent ...
متن کاملIn between: Gypsy in Drosophila melanogaster Reveals New Insights into Endogenous Retrovirus Evolution
Retroviruses are RNA viruses that are able to synthesize a DNA copy of their genome and insert it into a chromosome of the host cell. Sequencing of different eukaryote genomes has revealed the presence of many such endogenous retroviral sequences. The mechanisms by which these retroviral sequences have colonized the genome are still unknown, and the endogenous retrovirus gypsy of Drosophila mel...
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ژورنال
عنوان ژورنال: Journal of General Virology
سال: 2004
ISSN: 0022-1317,1465-2099
DOI: 10.1099/vir.0.79911-0