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ChemiSCREEN™ CX3CR1 Membrane Preparation
Description:
ChemiSCREEN™ CX3CR1 Membrane Preparation
Trade Name:
- ChemiScreen
- Chemicon (Millipore)
Qty/Pk:
200 units
Product Overview:
Full-length Human CX3CR1
Background Information:
CX3CR1 is a GPCR expressed on natural killer cells, cytotoxic T lymphocytes, and macrophages. The sole ligand for CX3CR1, fractalkine, is an unusual chemokine that is expressed as a transmembrane molecule with a CX3C domain and a mucin domain (Imai et al., 1997). Fractalkine is highly expressed on endothelial cells activated by TNFa and other proinflammatory cytokines, and fractalkine/CX3CR1 interactions mediate recruitment of macrophages into the atherosclerotic plaque (Lesnick et al., 2003; McDermott et al., 2003). In addition, fractalkine and CX3CR1 have been implicated in the pathogenesis of glomerulonephritis, HIV infection and rheumatoid arthritis (Ito et al., 2002; Faure et al., 2003; Nanki et al., 2002). Chemicon's CX3CR1 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 antagonists of fractalkine/CX3CR1 interactions. The membrane preparations exhibit a Kd of 0.05 nM for [125I]-fractalkine. With 2.5 mg/well CX3CR1 Membrane Prep and 0.05 nM [125I]-fractalkine, a greater than 7-fold signal-to-background ratio is obtained.
Application Notes:
Radioligand binding assay, and GTPγS binding.
Species Reactivity:
Human
Usage Statement:
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.
UniProt Summary:
FUNCTION: SwissProt: P49238 # Receptor for the CX3C chemokine fractalkine and mediates both its adhesive and migratory functions. Acts as coreceptor with CD4 for HIV-1 virus envelope protein (in vitro). Isoform 2 and isoform 3 seem to be more potent HIV coreceptors than isoform 1.
SIZE: 355 amino acids; 40396 Da
SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein.
TISSUE SPECIFICITY: Expressed in lymphoid and neural tissues.
SIMILARITY: SwissProt: P49238 ## Belongs to the G-protein coupled receptor 1 family.
SIZE: 355 amino acids; 40396 Da
SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein.
TISSUE SPECIFICITY: Expressed in lymphoid and neural tissues.
SIMILARITY: SwissProt: P49238 ## Belongs to the G-protein coupled receptor 1 family.
Species:
Human
Brand Family:
Chemicon
Protein Target:
CX3CR1
Presentation:
Packaging buffer: 50 mM Tris pH 7.4, 10% glycerol and 1% BSA
Packaging method: Membranes protein were adjusted to 1 mg/ml in 1 ml packaging buffer, rapidly frozen, and stored at -80°C.
Packaging method: Membranes protein were adjusted to 1 mg/ml in 1 ml packaging buffer, rapidly frozen, and stored at -80°C.
Ligand Type:
peptide
Storage Conditions:
Maintain frozen at -70°C for up to 2 years. Do not freeze and thaw.
Target Sub-Family:
Chemokine
GPCR Class:
A
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Gene Symbol:
- CX3CR1
- CMKDR1
- GPR13
- CMK-BRL-1
- V28
- GPRV28
- CMKBRL1
- CCRL1
- CMKBLR1
Protein or Enzyme Type:
GPCR Membrane Preparations
Product Name:
ChemiSCREEN™ CX3CR1 Membrane Preparation
Alternate Names:
V28
Concentration:
1 mL, 1 mg/mL
Quality Assurance:
Bmax: 3.13 pmol/mg
Kd: 0.05 nM
Kd: 0.05 nM
Cell Type:
Chem-1
Incubation Conditions:
RECOMMENDED ASSAY CONDITIONS:
Binding buffer: 50mM HEPES, 5mM MgCl2, 1mM CaCl2, 0.2% BSA, pH to 7.4 and filter.
Radioligand: [125I] Fractalkine (PerkinElmer#: NEX368)
One vial contains enough membranes for at least 200 assays (units), where an unit is the amount of membrane that will yield greater than 5-fold signal:background with 125I-labeled fractalkine at 0.05 nM.
Binding buffer: 50mM HEPES, 5mM MgCl2, 1mM CaCl2, 0.2% BSA, pH to 7.4 and filter.
Radioligand: [125I] Fractalkine (PerkinElmer#: NEX368)
One vial contains enough membranes for at least 200 assays (units), where an unit is the amount of membrane that will yield greater than 5-fold signal:background with 125I-labeled fractalkine at 0.05 nM.
Host Cells:
Chem-1
Format:
Membranes
UniProt Number:
Entrez Gene Number:
Cell Membrane Type:
GPCR