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Adrenergic beta1R expressing cells labeled with Terbium

Adrenergic beta1R expressing cells labeled with Terbium HTRF®

Tag-lite cells transiently expressing the Adrenergic beta1 receptor labeled with Terbium for use in receptor binding applications. The cells are provided ready to use.

Fully functional cell line
Transient expression
Ready for binding

Download the protocols

Tag-lite cells transiently expressing the Adrenergic beta1 receptor labeled with Terbium for use in receptor binding applications. The cells are provided ready to use.

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Overview

Endothelin receptors can be divided into ETA and ETB receptors also called ETA1 and ETA2. Both receptors are involved in the treatment of hypertension.

Cells expressing the BETA1 receptor are provided pre-labeled with Terbium, and can be used to conduct receptor binding studies on the aforementioned receptor.

Benefits

PRE-LABELED WITH TERBIUM
FROZEN CELLS, READY TO BE USED
CELLS/LIGAND VALIDATED FOR BINDING

Assay principle

Running your BETA1 receptor binding assay using Tag-lite is as easy as it can gets. Simply dispense 10 µL of labeled cells into each well, followed by 5 µL of labeled ligand and 5 µL of the compound you wish to test. Like all HTRF assays, Tag-lite assays do not require any washing steps. A diagram of the procedure to be followed is given on the right.

Diagram of BETA1 receptor binding assay using the Tag-lite protocol

Saturation binding (KD)

A saturation binding assay measures total and non-specific binding for increasing concentrations of ligand under equilibrium conditions. To perform the assay, the fluorescent ligand is titrated into a solution containing a fixed amount of labeled cells and then incubated to equilibrium. The HTRF ratio obtained from this titration is the total binding.

Diagram of a saturation binding assay using Tag-lite

Representative data obtained when running a saturation binding assay

Watch this video explaining how to run a saturation binding assay using Tag-lite.

Competitive binding (KI)

A competitive binding assay is performed to measure the dissociation constant, Ki. To perform the assay, the compound is titrated into a solution containing a fixed concentration of fluorescent ligand and a fixed amount of cells.

Diagram of a competitive binding assay using Tag-lite

Representative data obtained when running a competitive binding assay

Watch this video explaining how to run a competitive binding assay using Tag-lite.

Kd and Ki validation

Examples of data obtained using Adrenergic beta1 labeled cells and their matching fluorescent ligand (L0023GRE). CGP-12177 was used as reference ligand. Results may vary from one HTRF® compatible reader to another.

Representative saturation binding and competitive binding graph

Representative competitive binding graph

Evaluation of a Tag-lite binding assay for a class B receptor

In collaboration with Boehringer Ingelheim - Scientific Presentations

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Get the brochure about technology comparison. - Brochures

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Product Insert Ab1 LabCell / C1TT1BETA1

C1TT1BETA1 - Product Insert

Easy method for kinetic binding determination

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