The Development and Characterization of an Exogenous Green-Light-Regulated Gene Expression System in Marine Cyanobacteria
| Autor: | Amr Badary, Katsuhiro Kojima, Koji Sode, Stefano Ferri, Koichi Abe |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Cyanobacteria
Aquatic Organisms Histidine Kinase Light Transcription Genetic Genetic Vectors Green Fluorescent Proteins Real-Time Polymerase Chain Reaction Applied Microbiology and Biotechnology Green fluorescent protein Bacterial Proteins Genes Reporter Botany Gene expression Cloning Molecular Promoter Regions Genetic Gene Synechococcus Reporter gene biology Strain (chemistry) Gene Expression Regulation Bacterial biology.organism_classification Recombinant Proteins Cell biology Response regulator Genetic Engineering Protein Kinases Transcription Factors |
| Zdroj: | Marine Biotechnology. 17:245-251 |
| ISSN: | 1436-2236 1436-2228 |
| Popis: | A green-light-regulated gene expression system derived from Synechocystis sp. PCC 6803 was constructed and introduced into the marine cyanobacterial strain Synechococcus sp. NKBG 15041c. The regulation system was evaluated using gfp uv as a reporter gene under red-light illumination and under simultaneous red- and green-light illumination. Expression of the reporter gene was effectively repressed under red-light illumination and increased over 10-fold by illuminating with green light. Control vectors missing either the ccaS sensor histidine kinase gene or the ccaR response regulator gene showed no detectable induction of GFPuv expression. Green-light induction of gfp uv expression was further confirmed by quantitative reverse transcription PCR. The constructed system was effective at regulating the recombinant expression of a target gene using green light in a marine cyanobacterial strain that does not naturally possess such a green-light regulation system. Thus, constructed green-light-regulated gene expression system may be used as a core platform technology for the development of marine cyanobacterial strains in which bioprocesses will be regulated by light. |
| Databáze: | OpenAIRE |
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