Zebrafish Thyroid Hormone Receptor Beta (zTRβ; nr1a2)
|Product Family||Product Number||Product Description||Technical Manual|
|Z01101-32||Zebrafish TRβ Reporter Assay System, 3 x 32 assays in 96-well format||Technical Manual|
|Z01101||Zebrafish TRβ Reporter Assay System, 1 x 96-well format assays||Technical Manual|
Zebrafish Thyroid Hormone Receptor Beta Assay Kit
This Zebrafish Thyroid Hormone Receptor Beta (zTRβ) kit is an all-inclusive assay system that includes, in addition to zTRβ Reporter Cells, two optimized media for use during cell culture and (optionally) in diluting the test samples, a reference agonist, Luciferase Detection Reagent, a cell culture-ready assay plate, and a detailed protocol.
zTRβ Reporter Cells are prepared using INDIGO’s proprietary CryoMite™ process. This cryo-preservation method yields high cell viability post-thaw, and provides the convenience of immediately dispensing healthy, division-competent reporter cells into assay plates. There is no need for intermediate spin-and-wash steps, viability determinations, or cell titer adjustments.
INDIGO’s assay kits feature a luciferase detection reagent specially formulated to provide stable light emission between 5 and 90+ minutes after initiating the luciferase reaction. Incorporating a 5-minute reaction-rest period ensures that light emission profiles attain maximal stability, thereby allowing assay plates to be processed in batch. By doing so, the signal output from all sample wells, from one plate to the next, may be directly compared within an experimental set.
Kits are offered in different assay formats to accommodate researchers’ needs: 3x 32 and 1x 96 assay formats for screening small numbers of test compounds, as well as custom bulk reagents for HTS applications.
Bulk assay reagents can be custom manufactured to accommodate any scale of HTS. Please inquire.
TRb assay kits also available in: Human
Zebrafish Thyroid Hormone Receptor Beta Assay Services
The primary application of INDIGO’s cell-based nuclear receptor assays are to quantitatively assess the bioactivity of a test compound as an agonist (activator) or antagonist (inhibition of an agonist response) of a given receptor. Service assays include a positive control reference compound and ‘vehicle’ control for every experiment. A formal study report and all data files are provided to the client upon completion of the study. To receive a quote for your proposed study, complete & submit the online “Request a Quote” form or contact an INDIGO Customer Service Representative to discuss your desired study parameters.
TRb Service Assays: Human, Zebrafish
Zebrafish Thyroid Hormone Receptor Beta Assay 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.
For more information on TRβ, visit the Nuclear Receptor Resource.