Merck, HTS156M, ChemiSCREEN Membrane Preparation Recombinant Human MC 1 Melanocortin Receptor

General description
The melanocortin-1 receptor (MC1) is a member of the G-protein-coupled receptor family of proteins that is responsible for regulating skin and hair color. The MC1 receptor is regulated by the physiological agonists alpha-melanocyte-stimulating hormone (alphaMSH) and adrenocorticotropic hormone (ACTH), and antagonist agouti signaling protein (ASP) (Rouzud et al., 2005). In 1995 a landmark study demonstrated that over 80% of humans with red hair or fair skin have a dysfunctional variant of the MC1 gene (Valverde et al., 1995). MC1 is, therefore, a major determinant of sun sensitivity and genetic risk factor for melanoma and non-melanoma skin cancer. Millipore′s MC1 membrane preparations are crude membrane preparations made from our proprietary stable recombinant cell lines to ensure high-level of GPCR surface expression; thus, they are ideal HTS tools for screening of agonists and antagonists of MC1. The membrane preparations exhibit a Kd of 1.3nM for [125I]-[Nle4, D-Phe7]-α-MSH (NDP-αMSH). With 0.3 nM [125I]-NDP-αMSH, 5μg/well MC1 Membrane Prep typically yields greater than 50-fold signal-to-background ratio.
Application
Human MC1 GPCR membrane preparation for Radioligand binding Assays & GTPγS binding.
Radioligand binding assay and GTPγS binding.
Biochem/physiol Actions
GPCR Class: A
Protein Target: MC1
Target Sub-Family: Melanocortin

Physical form
Liquid in packaging buffer: 50 mM Tris pH 7.4, 10% glycerol and 1% BSA with no preservatives. Packaging method: Membranes protein were adjusted to 1 mg/mL in packaging buffer, and dispensed at 1 mL/vial. Vials were rapidly frozen, and stored at -80°C.
Preparation Note
Maintain frozen at -70°C for up to 2 years. Do not freeze and thaw.
Legal Information
CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial