Back-priming mode of phi6 RNA-dependent RNA polymerase.
The RNA-dependent RNA polymerase of the double-stranded RNA bacteriophage phi6 is capable of primer-independent initiation, as are many RNA polymerases. The structure of this polymerase revealed an initiation platform, composed of a loop in the C-terminal domain (QYKW, aa 629-632), that was essentia...
Hauptverfasser: | , , , , |
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Format: | Journal article |
Sprache: | English |
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2005
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_version_ | 1826258372146495488 |
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author | Laurila, MR Salgado, P Stuart, D Grimes, J Bamford, D |
author_facet | Laurila, MR Salgado, P Stuart, D Grimes, J Bamford, D |
author_sort | Laurila, MR |
collection | OXFORD |
description | The RNA-dependent RNA polymerase of the double-stranded RNA bacteriophage phi6 is capable of primer-independent initiation, as are many RNA polymerases. The structure of this polymerase revealed an initiation platform, composed of a loop in the C-terminal domain (QYKW, aa 629-632), that was essential for de novo initiation. A similar element has been identified in hepatitis C virus RNA-dependent RNA polymerase. Biochemical studies have addressed the role of this platform, revealing that a mutant version can utilize a back-priming initiation mechanism, where the 3' terminus of the template adopts a hairpin-like conformation. Here, the mechanism of back-primed initiation is studied further by biochemical and structural methods. |
first_indexed | 2024-03-06T18:32:57Z |
format | Journal article |
id | oxford-uuid:0a446d52-d5a9-40f1-89de-e3042d8c1547 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-06T18:32:57Z |
publishDate | 2005 |
record_format | dspace |
spelling | oxford-uuid:0a446d52-d5a9-40f1-89de-e3042d8c15472022-03-26T09:23:00ZBack-priming mode of phi6 RNA-dependent RNA polymerase.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0a446d52-d5a9-40f1-89de-e3042d8c1547EnglishSymplectic Elements at Oxford2005Laurila, MRSalgado, PStuart, DGrimes, JBamford, DThe RNA-dependent RNA polymerase of the double-stranded RNA bacteriophage phi6 is capable of primer-independent initiation, as are many RNA polymerases. The structure of this polymerase revealed an initiation platform, composed of a loop in the C-terminal domain (QYKW, aa 629-632), that was essential for de novo initiation. A similar element has been identified in hepatitis C virus RNA-dependent RNA polymerase. Biochemical studies have addressed the role of this platform, revealing that a mutant version can utilize a back-priming initiation mechanism, where the 3' terminus of the template adopts a hairpin-like conformation. Here, the mechanism of back-primed initiation is studied further by biochemical and structural methods. |
spellingShingle | Laurila, MR Salgado, P Stuart, D Grimes, J Bamford, D Back-priming mode of phi6 RNA-dependent RNA polymerase. |
title | Back-priming mode of phi6 RNA-dependent RNA polymerase. |
title_full | Back-priming mode of phi6 RNA-dependent RNA polymerase. |
title_fullStr | Back-priming mode of phi6 RNA-dependent RNA polymerase. |
title_full_unstemmed | Back-priming mode of phi6 RNA-dependent RNA polymerase. |
title_short | Back-priming mode of phi6 RNA-dependent RNA polymerase. |
title_sort | back priming mode of phi6 rna dependent rna polymerase |
work_keys_str_mv | AT laurilamr backprimingmodeofphi6rnadependentrnapolymerase AT salgadop backprimingmodeofphi6rnadependentrnapolymerase AT stuartd backprimingmodeofphi6rnadependentrnapolymerase AT grimesj backprimingmodeofphi6rnadependentrnapolymerase AT bamfordd backprimingmodeofphi6rnadependentrnapolymerase |