HTS002M

ChemiScreen CXCR2 Membrane Preparation

Human CXCR2 / IL-8b GPCR membrane preparation for Radioligand binding Assays.

• Code UNSPSC : 41106514
• eCl@ss : 32161000
• Nomenclature NACRES : NA.84

Propriétés

• Source biologique: human
• Niveau de qualité: 100
• Produit recombinant: expressed in Chem-1 cells
• Fabricant/nom de marque: ChemiScreen; Chemicon^®
• Concentration: 0.5 mg/mL
• Technique(s): radioligand binding assay (RLBA): suitable
• Numéro d'accès NCBI: NM_001557.2
• Numéro d'accès UniProt: P25025
• Conditions d'expédition: dry ice

Description

Description générale

CXCR2 is a 7-TM G-protein coupled receptor that binds to the chemokines GROalpha, GRObeta, GROgamma, IL-8, ENA-78, NAP-2 and GCP-2 (Olson and Ley, 2002). Neutrophils, mast cells and microvascular endothelial cells express CXCR2, and interactions of CXCR2 with its ligands promotes chemotaxis of these cell types (Heidemann et al., 2003; Nilsson et al., 1999; White et al., 1998). Studies with mice lacking CXCR2 indicate that CXCR2 promotes growth of primary tumors and secondary metastases (Keane et al., 2004), and plays an essential role in hyperoxia-induced lung injury (Sue et al., 2004). In addition, cytomegalovirus encodes a CXCR2-binding chemokine, vCXC-1, that promotes neutrophil migration to infected cells (Penfold et al., 1999). Chemicon′s CXCR2 Membrane Preps are ideal tools for screening for antagonists of interactions between CXCR2 and its ligands. Radiolabeled IL-8 binds to the CXCR2 membranes with a Kd of 0.075 nM. With 0.1 nM 125I-labeled IL-8, a 5-fold window of specific binding is obtained.

TRANSFECTION: Full-length human CXCR2 cDNA (Accession Number: M73969)

Application

Radioligand binding assay.

Actions biochimiques/physiologiques

GPCR Class: A

Protein Target: CXCR2 / IL-8b

Target Sub-Family: Chemokine

Qualité

Bmax for [¹²⁵I]IL-8 binding: 0.93 pmol/mg protein; Kd for [¹²⁵I] IL-8 binding: ~ 0.075 nM

Forme physique

Membranes were adjusted to 0.5 mg protein/ml in 50 mM Tris pH 7.4, 10% glycerol and 1% BSA, rapidly frozen, and stored at -80°C. One vial typically contains 1000 units, where a unit is the amount of membrane that will yield greater than 1000 cpm specific binding of 125I-labeled IL-8 (0.1 nM input concentration).

Stockage et stabilité

Maintain frozen at -70°C for up to 2 years. Do not freeze and thaw.

Informations légales

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

Clause de non-responsabilité

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 uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Informations sur la sécurité

• Code de la classe de stockage: 12 - Non Combustible Liquids
• Classe de danger pour l'eau (WGK): WGK 2