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- 4Messenger-Rna
- 3Amino-Acids
- 3Lactose Permease
- 3Membrane-Protein Structure
- 3Peptides
- 5Fliegel, Larry
- 5Sykes, Brian D.
- 4Chamot, Danuta
- 4Owttrim, George W.
- 3Li, Xiuju J.
- 3Owttrim, George W.
- 8Biological Sciences, Department of
- 8Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 5Biochemistry, Department of
- 5Biochemistry, Department of/Journal Articles (Biochemistry)
- 1Agricultural, Food and Nutritional Science, Department of
- 1Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
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1999
Owttrim, George W., Magee, Wendy C., Yu, Esther, Chamot, Danuta
The ability to modify RNA secondary structure is crucial for numerous cellular processes. We have characterized two RNA helicase genes, crhB and crhC, which are differentially expressed in the cyanobacterium Anabaena sp. strain PCC 7120. crhC transcription is limited specifically to cold shock...
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A LexA-related protein regulates redox-sensitive expression of the cyanobacterial RNA helicase, crhR
Download2006
Colvin, Kimberley R., Owttrim, George W. , Patterson-Fortin, Laura M.
Expression of the cyanobacterial DEAD-box RNA helicase, crhR , is regulated in response to conditions, which elicit reduction of the photosynthetic electron transport chain. A combination of electrophoretic mobility shift assay (EMSA), DNA affinity chromatography and mass spectrometry identified...
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Comparative analysis of two phenotypically-similar but genomically-distinct Burkholderia cenocepacia-specific bacteriophages
Download2012
Stothard, Paul, Dennis, Jonathan J., Lynch, Karlene H.
Background Genomic analysis of bacteriophages infecting the Burkholderia cepacia complex (BCC) is an important preliminary step in the development of a phage therapy protocol for these opportunistic pathogens. The objective of this study was to characterize KL1 (vBBceSKL1) and AH2 (vBBceSAH2),...
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Conditional, temperature-induced proteolytic regulation of cyanobacterial RNA helicase expression
Download2014
Owttrim, George W., Tarassova, Oxana S., Chamot, Danuta
Conditional proteolysis is a crucial process regulating the abundance of key regulatory proteins associated with the cell cycle, differentiation pathways, or cellular response to abiotic stress in eukaryotic and prokaryotic organisms. We provide evidence that conditional proteolysis is involved...
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Cyanobacterial RNA Helicase CrhR Localizes to the Thylakoid Membrane Region and Cosediments with Degradosome and Polysome Complexes in Synechocystis sptrain PCC 6803
Download2016
Fahlman, Richard P., Owttrim, George W. , Rosana, Albert R. R., Whitford, Denise S.
The cyanobacterium Synechocystis sp. strain PCC 6803 encodes a single DEAD box RNA helicase, CrhR, whose expression is tightly autoregulated in response to cold stress. Subcellular localization and proteomic analysis results indicate that CrhR localizes to both the cytoplasmic and thylakoid...
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Divergent genes for translation inition factor elF-4A are coordinately expressed in tobacco
Download1991
Kuhlemeir, Cris, Holfmann, Sylvia, Owtrim, George W.
Three cDNA clones coding for eukaryotic translation initiation factor 4A, elF-4A, were isolated from a Nicotiana plumbaginifolia root cDNA library by heterologous screening. The clones comprise two distinct gene classes as two clones are highly similar while the third is divergent. The genes...
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2017-01-01
Carvalho, Wildemar S. P., Wei, Menglian, Ikpo, Nduka, Gao, Yongfeng, Serpe, Michael J.
Reports in the literature on the development of new chemical sensing technologies have been growing steadily in number for years. For example, a Web of Science topic search using the term “Chemical Sensing” revealed that over 8 000 papers were published in 2015–2017, with over 40 000 citations to...
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Regulation of cold shock-induced RNA helicase gene expression in the cyanobacterium Anabaena sptrain PCC 7120
Download2000
Owttrim, George W., Chamot, Danuta
Expression of the Anabaena sp. strain PCC 7120 RNA helicase gene crhC is induced by cold shock.crhC transcripts are not detectable at 30°C but accumulate at 20°C, and levels remain elevated for the duration of the cold stress. Light-derived metabolic capability, and not light per se, is required...
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2006
RNA helicases function as molecular motors that rearrange RNA secondary structure, potentially performing roles in any cellular process involving RNA metabolism. Although RNA helicase association with a range of cellular functions is well documented, their importance in response to abiotic stress...
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RNA structural rearrangement via unwinding and annealing by the cyanobacterial RNA helicase, CrhR
Download2005
Owttrim, George W., Chamot, Danuta, Kujat-Choy, Sonya L., Colvin, Kimberley R.
Rearrangement of RNA secondary structure is crucial for numerous biological processes. RNA helicases participate in these rearrangements through the unwinding of duplex RNA. We report here that the redox-regulated cyanobacterial RNA helicase, CrhR, is a bona fide RNA helicase possessing both...