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Transcriptome analysis of polar bears (Ursus maritimus) yielded sequences with highest similarity to the human endogenous retrovirus group HERV-K(HML-2). Further analysis of the polar bear draft genome identified an endogenous betaretrovirus group comprising 26 proviral copies and 231 solo LTRs. Molecular dating indicates the group originated before the divergence of bears from a common ancestor but...
Twenty-eight bacteriophages infecting the local host Bacillus pumilus BL-8 were isolated, purified, and characterized. Nine genomes were sequenced, of which six were annotated and are the first of this host submitted to the public record. The 28 phages were divided into two groups by sequence and morphological similarity, yielding 27 cluster BpA phages and 1 cluster BpB phage, which is a BL-8 prophage...
The papillomavirus E2 proteins are pivotal to the viral life cycle and have well characterized functions in transcriptional regulation, initiation of DNA replication and partitioning the viral genome. The E2 proteins also function in vegetative DNA replication, post-transcriptional processes and possibly packaging. This review describes structural and functional aspects of the E2 proteins and their...
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