Plasmids with the uidA reporter gene for the detection of promoters and transcription signals

1988 ◽  
Vol 212 (2) ◽  
pp. 390-392 ◽  
Author(s):  
Nicolas Bardonnet ◽  
Annie Trautwetter ◽  
Gisèle Couchoux-Luthaud ◽  
Carlos Blanco
Keyword(s):  
Reporter Gene ◽  
Uida Reporter Gene ◽  
Transcription Signals

Isolation and evaluation of three novel native promoters in Brassica napus

Botany ◽  
2013 ◽  
Vol 91 (6) ◽  
pp. 414-419 ◽  
Author(s):  
Limin Wu ◽  
Aliaa El-Mezawy ◽  
Saleh Shah
Keyword(s):  
Brassica Napus ◽  
Reporter Gene ◽  
Genetic Modification ◽  
Gus Activity ◽  
The Other ◽  
Genome Walking ◽  
Constitutive Promoter ◽  
Brassica Napus L ◽  
Transgenic Canola ◽  
Uida Reporter Gene

To provide effective and specific native promoters for canola (Brassica napus L.) genetic modification, three promoters were isolated by genome walking from this species. These three promoters were fused to the uidA reporter gene (GUS) and were independently used to generate populations of transgenic canola plants. Plants transformed with BnPGPro-GUS (B. napus putative germin promoter) exhibited GUS activity in all the tissues tested at a level comparable to those transformed with CaMV35 S promoter. This indicates that BnPGPro may serve as a native constitutive promoter for canola. The other two promoters, BnPro3-GUS and BnPro5-GUS (B. napus, promoter 3 and 5), exhibited GUS activity in various tissues. None of these two promoters expressed in embryo, however. These novel Brassica native promoters can be used to modify canola genes for various purposes.

scholarly journals Sugarcane (NCo310) Transient Transformation Using uidA Reporter Gene

2013 ◽  
Vol 11 (2) ◽  
pp. x-x ◽  
Author(s):  
Soheila Matroodi ◽  
Mostafa Motallebi ◽  
Mohammadreza Zamani ◽  
Amir Mousavi ◽  
Daryoush Davoodi ◽  
...  
Keyword(s):  
Reporter Gene ◽  
Transient Transformation ◽  
Uida Reporter Gene

Influence of chlorophyll and tannins in plant extracts on cell-based luciferase reporter gene assays

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
S Vogl ◽  
P Picker ◽  
N Fakhrudin ◽  
A Atanasov ◽  
E Heiß ◽  
...  
Keyword(s):  
Reporter Gene ◽  
Plant Extracts ◽  
Luciferase Reporter ◽  
Luciferase Reporter Gene ◽  
Reporter Gene Assays

scholarly journals In vitro bioanalytical assessment of toxicity of wetland samples from Spanish Mediterranean coastline

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Alberto Celma ◽  
Geeta Mandava ◽  
Agneta Oskarsson ◽  
Juan Vicente Sancho ◽  
Lubertus Bijlsma ◽  
...  
Keyword(s):  
Water Quality ◽  
Reporter Gene ◽  
Biological Activities ◽  
Reporter Gene Assay ◽  
Water Bodies ◽  
Good Tool ◽  
Adverse Health Effects ◽  
Aryl Hydrocarbon ◽  
Gene Assay

Abstract Background Fresh water bodies represent less than 1% of overall amount of water on earth and ensuring their quality and sustainability is pivotal. Although several campaigns have been performed to monitor the occurrence of micropollutants by means of chemical analysis, this might not cover the whole set of chemicals present in the sample nor the potential toxic effects of mixtures of natural and anthropogenic chemicals. In this sense, by selecting relevant toxicity endpoints when performing in vitro bioanalysis, effect-based methodologies can be of help to perform a comprehensive assessment of water quality and reveal biological activities relevant to adverse health effects. However, no prior bioanalytical study was performed in wetland water samples from the Spanish Mediterranean coastline. Methods Eleven samples from relevant water bodies from the Spanish Mediterranean coastline were collected to monitor water quality on 8 toxicity endpoints. Aryl hydrocarbon receptor (AhR), androgenicity (AR+ and AR−), estrogenicity (ER+ and ER−), oxidative stress response (Nrf2) and vitamin D receptor (VDR+ and VDR−) reporter gene assays were evaluated. Results AhR was the reporter gene assay showing a more frequent response over the set of samples (activated by 9 out of 11 samples), with TCDD-eq in the range 7.7–22.2 pM. For AR, ER and VDR assays sporadic activations were observed. Moreover, no activity was observed on the Nrf2 reporter gene assay. Wastewater and street runaway streams from Valencia could be responsible for enhanced activities in one of the water inputs in the Natural Park ‘L’Albufera’. Conclusions Water quality of relevant wetlands from the Spanish Mediterranean coastline has been evaluated. The utilization of a panel of 5 different bioassays to cover for different toxicity endpoints has demonstrated to be a good tool to assess water quality.

scholarly journals Transcription signals and protein binding sites for sericin gene transcription in vitro

1989 ◽  
Vol 264 (31) ◽  
pp. 18707-18713 ◽  
Author(s):  
K Matsuno ◽  
C C Hui ◽  
S Takiya ◽  
T Suzuki ◽  
K Ueno ◽  
...  
Keyword(s):  
Protein Binding ◽  
Gene Transcription ◽  
Binding Sites ◽  
Protein Binding Sites ◽  
Transcription In Vitro ◽  
Transcription Signals

scholarly journals Creating a human-induced pluripotent stem cell-based NKX2.5 reporter gene assay for developmental toxicity testing

2021 ◽  
Author(s):  
Karin Lauschke ◽  
Andreas Frederik Treschow ◽  
Mikkel Aabech Rasmussen ◽  
Nichlas Davidsen ◽  
Bjørn Holst ◽  
...  
Keyword(s):  
Stem Cell ◽  
Reporter Gene ◽  
Luminescence Intensity ◽  
Developmental Toxicity ◽  
Embryonic Stem ◽  
Embryoid Bodies ◽  
Luciferase Reporter ◽  
Reporter Cell ◽  
Gene Assay ◽  
Induced Pluripotent

AbstractTo test large numbers of chemicals for developmental toxicity, rapid in vitro tests with standardized readouts for automated data acquisition are needed. However, the most widely used assay, the embryonic stem cell test, relies on the counting of beating embryoid bodies by visual inspection, which is laborious and time consuming. We previously developed the PluriBeat assay based on differentiation of human induced pluripotent stem cells (hiPSC) that we demonstrated to be predictive for known teratogens at relevant concentrations using the readout of beating cardiomyocytes. Here, we report the development of a novel assay, which we term the PluriLum assay, where we have introduced a luciferase reporter gene into the locus ofNKX2.5of our hiPSC line. This enabled us to measure luminescence intensities instead of counting beating cardiomyocytes, which is less labor intensive. We established twoNKX2.5reporter cell lines and validated their pluripotency and genetic stability. Moreover, we confirmed that the genetically engineeredNKX2.5reporter cell line differentiated into cardiomyocytes with the same efficiency as the original wild-type line. We then exposed the cells to valproic acid (25–300 μM) and thalidomide (0.1–36 µM) and compared the PluriBeat readout of the cardiomyocytes with the luminescence intensity of the PluriLum assay. The results showed that thalidomide decreased luminescence intensity significantly with a higher potency and efficacy compared to the beating readout. With this, we have developed a novel hiPSC-based assay with a standardized readout that may have the potential for higher throughput screening for developmental toxicity.

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