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Zebrafish TRb Reporter Assay Kit

SIZE SKU PRICE
1 x-96 well format assays
3 x-32 assays in-96 well format
SIZE SKU
1 x-96 well format assays
3 x-32 assays in-96 well format

Product Description and Product Data

This is an all-inclusive cell-based luciferase reporter assay kit targeting the Zebrafish Thyroid Hormone Receptor beta. INDIGO’s zTR beta reporter assay utilizes proprietary non-human cells that have been engineered to provide constitutive expression of the zTR beta. In addition to zTR beta Reporter Cells, this kit provides two optimized media for use during cell culture and in diluting the user’s test samples, a reference agonist, Luciferase Detection Reagent, and a cell culture-ready assay plate. The principal application of this assay is in the screening of test samples to quantify any functional activity, either agonist or antagonist, that they may exert against zTR beta. This kit provides researchers with clear, reproducible results, exceptional cell viability post-thaw, and consistent results lot to lot. Kits must be stored at -80C. Do not store in liquid nitrogen. Note: reporter cells cannot be refrozen or maintained in extended culture.

Features

  • Clear, Reproducible Results

  • All-Inclusive Assay Systems
  • Exceptional Cell Viability Post-Thaw
  • Consistent Results Lot to Lot

Product Specifications

Target TypeNuclear Hormone Receptor, Nuclear Receptor Orthologs
SpeciesZebrafish
Receptor FormHybrid
Assay ModeAgonist, Antagonist
Kit Components
  • Zebrafish TRb Reporter Cells
  • Cell Recovery Medium (CRM)
  • Compound Screening Medium (CSM)
  • L-Triiodothyronine, (ref. agonist; in DMSO)
  • Detection Substrate
  • Detection Buffer
  • White, sterile, cell-culture ready assay plate
Shelf Life6 months
Shipping RequirementsDry Ice
Storage temperature-80C

Data

Agonist dose-response of Zebrafish TR using the reference agonist L-Triiodothyronine. zfTRb Reporter Cells were treated with L-triiodothyronine using a 7-point concentration range generated in 3-fold decrements: 150, 50.0, 16.7, 5.56, 1.85, 0.617, and 0.206 nM, and including ‘untreated’ control wells (as described in Appendix 1 of the tech manual). Luminescence/well was quantified and the average relative light units (RLU), corresponding standard deviation (SD), percent coefficient of variation (%CV) and fold-activation values were determined for each treatment concentration (n = 4). Average fold-activation +/- %CV were plotted against their respective agonist concentrations, Log10 (nM), using GraphPad Prism software. Z’ was calculated as described by Zhang, et al. (1999).

Target Background

INDIGO’s Zebrafish Thyroid Hormone Receptor Beta Reporter Assay System utilizes proprietary human cells engineered to provide constitutive, high-level expression of Zebrafish (Danio rerio) Thyroid Hormone Receptor Beta (nr1a2), a ligand-dependent transcription factor.

INDIGO’s Reporter Cells include the luciferase reporter gene functionally linked to a TRβ-responsive promoter. Thus, quantifying changes in luciferase expression in the test sample-treated reporter cells provides a sensitive surrogate measure of changes in zTRβ activity. The principal application of this assay is in the screening of test samples to quantify any functional bioactivity that they may exert against zebrafish AR. In particular, zebrafish reporter assays are frequently used in the monitoring of environmental samples for the presence of biohazardous chemical pollutants, such as endocrine disruptors.

The protein encoded by this gene is a nuclear hormone receptor for triiodothyronine. It is one of the several receptors for thyroid hormone, and has been shown to mediate the biological activities of thyroid hormone. Knockout studies in mice suggest that the different receptors, while having certain extent of redundancy, may mediate different functions of thyroid hormone. Mutations in this gene are known to be a cause of generalized thyroid hormone resistance (GTHR), a syndrome characterized by goiter and high levels of circulating thyroid hormone (T3-T4), with normal or slightly elevated thyroid stimulating hormone (TSH). Several alternatively spliced transcript variants encoding the same protein have been observed for this gene.

Also available as a service

Thyroid Hormone Receptor Beta (TRb, NR1A2)

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