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An unexplored diversity of reverse transcriptases in bacteria

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Author
Zimmerly, Steven
Wu, Li
Accessioned
2016-04-15T22:40:36Z
Available
2016-04-15T22:40:36Z
Issued
2015
Subject
Bacterial proteins
Genetic elements
Group II introns
DNA Polymerase III
Type
journal article
Metadata
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Abstract
Reverse transcriptases (RTs) are usually thought of as eukaryotic enzymes, but they are also present in bacteria and likely originated in bacteria and migrated to eukaryotes. Only three types of bacterial retroelements have been substantially characterized: group II introns, diversity-generating retroelements, and retrons. Recent work, however, has identified a myriad of uncharacterized RTs and RT-related sequences in bacterial genomes, which exhibit great sequence diversity and a range of domain structures. Apart from group II introns, none of these putative RTs show evidence of active retromobility. Instead, available information suggests that they are involved in useful processes, sometimes related to phages or phage resistance. This article reviews our knowledge of both characterized and uncharacterized RTs in bacteria. The range of their sequences and genomic contexts promises the discovery of new biochemical reactions and biological phenomena.
Refereed
Yes
Citation
Zimmerly, S., Wu, L. (2015) An unexplored diversity of reverse transcriptases in bacteria. Microbiology Spectrum. April 2015 3:2 doi:10.1128/microbiolspec.MDNA3-0058-2014
Department
Biological Sciences
Faculty
Science
Institution
University of Calgary
Url
http://www.asmscience.org/content/journal/microbiolspec/10.1128/microbiolspec.MDNA3-0058-2014
Publisher
ASMscience
Doi
http://dx.doi.org/10.1128/microbiolspec.MDNA3-0058-2014
http://dx.doi.org/10.11575/PRISM/35158
Uri
http://hdl.handle.net/1880/51148
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