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HTS186M ChemiSCREEN™ Membrane Preparation Recombinant Human GAL2 Galanin Receptor

Human GAL2 GPCR membrane preparation for Radioligand binding Assays & GTPγS binding.

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Host Cell: Chem-1 Uni Prot Number: O43603 Entrez Gene Number: NM_003857.2
HTS186M
200 units  
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      Aperçu

      Replacement Information

      Tableau de caractéristiques principal

      SpeciesHost CellsProtein Target
      Human Chem-1GAL2
      Description
      Catalogue NumberHTS186M
      Trade Name
      • ChemiScreen
      • Chemicon
      DescriptionChemiSCREEN™ Membrane Preparation Recombinant Human GAL2 Galanin Receptor
      OverviewFull-length human GALR2 cDNA encoding GAL2
      Background InformationGalanin is a 29-30 amino acid peptide originally purified from intestine, but later found to be abundant in the CNS. It is widely distributed in tissues such as the brain, spinal cord and gut, and can regulate numerous processes including feeding, nociception, nerve regeneration, memory, neuroendocrine release, and gut secretion and contractility. Galanin elicits its physiological effects through the stimulation of at least three G protein-coupled receptors (Branchek et al. 2000). GAL2 receptor couples predominantly to the activation of phospholipase C. It plays an important role in modulating neurite outgrowth and has been demonstrated to be the principal receptor subtype that mediates the protective effects of galanin in the hippocampus (Elliott-Hunt et al. 2007). Millipore's GAL2 receptor 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 GAL2 receptor interactions. The membrane preparations exhibit a Kd of 1.4 nM for [125I]-Galanin. With 10 µg/well GAL2 receptor Membrane Prep and 0.5 nM [125I]-Galanin, a greater than 20-fold signal-to-background ratio was obtained.
      References
      Product Information
      FormatMembranes
      PresentationOne package contains enough membranes for at least 200 assays (units), where an unit is the amount of membrane that will yield greater than 20-fold signal:background with 125I-labeled galanin at 0.5 nM.

      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 the indicated concentration in packaging buffer, rapidly frozen, and stored at -80°C.
      Quality LevelMQ100
      Applications
      ApplicationHuman GAL2 GPCR membrane preparation for Radioligand binding Assays & GTPγS binding.
      Key Applications
      • Radioligand binding assay
      • GTPγS binding
      Application NotesRadioligand binding assay and GTPγS binding.
      Biological Information
      Entrez Gene Number
      Entrez Gene SummaryGalanin is an important neuromodulator present in the brain, gastrointestinal system, and hypothalamopituitary axis. It is a 30-amino acid non-C-terminally amidated peptide that potently stimulates growth hormone secretion, inhibits cardiac vagal slowing of heart rate, abolishes sinus arrhythmia, and inhibits postprandial gastrointestinal motility. The actions of galanin are mediated through interaction with specific membrane receptors that are members of the 7-transmembrane family of G protein-coupled receptors. GALR2 interacts with the N-terminal residues of the galanin peptide. The primary signaling mechanism for GALR2 is through the phospholipase C/protein kinase C pathway (via Gq), in contrast to GALR1, which communicates its intracellular signal by inhibition of adenylyl cyclase through Gi. However, it has been demonstrated that GALR2 couples efficiently to both the Gq and Gi proteins to simultaneously activate 2 independent signal transduction pathways.
      Gene Symbol
      • GALR2
      • GALNR2
      • GAL2-R
      • MGC125983
      • MGC125984
      GPCR ClassA
      Host CellsChem-1
      Protein TargetGAL2
      Target Sub-FamilyGalanin
      UniProt Number
      UniProt SummaryFUNCTION: SwissProt: O43603 # Receptor for the hormone galanin and for GALP. The activity of this receptor is mediated by G proteins that activate the phospholipase C/protein kinase C pathway (via Gq) and that inhibit adenylyl cyclase (via Gi).
      SIZE: 387 amino acids; 41700 Da
      SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein.
      TISSUE SPECIFICITY: Expressed abundantly within the central nervous system in both hypothalamus and hippocampus. In peripheral tissues, the strongest expression was observed in heart, kidney, liver, and small intestine.
      SIMILARITY: SwissProt: O43603 ## Belongs to the G-protein coupled receptor 1 family.
      Incubation ConditionsMembranes are mixed with radioactive ligand and unlabeled competitor (see Figures 1 and 2 for concentrations tested) in binding buffer in a nonbinding 96-well plate, and incubated for 1-2 h. Prior to filtration, an FC 96-well harvest plate (Millipore cat. # MAHF C1H) is coated with 0.33% polyethyleneimine for 30 min, then washed with 50mM HEPES, pH 7.4. Binding reaction is transferred to the filter plate, and washed 3 times (1 mL per well per wash) with Wash Buffer. The plate is dried and counted.

      Binding buffer: 50 mM Hepes, pH 7.4, 5 mM MgCl2, 1 mM CaCl2, filtered and stored at 4°C
      Radioligand: [125I] galanin (Perkin Elmer # NEX333)
      Wash Buffer: 50 mM Hepes, pH 7.4, 500mM NaCl, filtered and stored at 4°C.
      Physicochemical Information
      Dimensions
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Table 1. Signal:background and specific binding values obtained in a competition binding assay with GAL2 receptor membrane prep and cold galanin (2-29).
      Product Usage Statements
      10 µg/well
      Signal:Background 42.4
      Specific Binding (cpm) 28192
      SPECIFICATIONS: 1 unit = 10 µg membrane preparation
      Bmax: 8.2 pmol/mg
      Kd: ~1.4 nM 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.
      Storage and Shipping Information
      Storage ConditionsMaintain frozen at -70°C for up to 2 years. Do not freeze and thaw.
      Packaging Information
      Material Size200 units
      Transport Information
      Supplemental Information
      Specifications
      Global Trade Item Number
      Référence GTIN
      HTS186M 04053252510588

      Documentation

      Références bibliographiques

      Aperçu de la référence bibliographiqueNº PubMed
      Activation of the galanin receptor 2 (GalR2) protects the hippocampus from neuronal damage
      Elliott-Hunt, Caroline R, et al
      J Neurochem, 100:780-9 (2007)  2007

      		17263796 17263796
      Galanin receptor subtypes.
      Branchek, T A, et al.
      Trends Pharmacol. Sci., 21: 109-17 (2000)  1999

      Afficher le résumé       		10689365 10689365

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      Titre
      ChemiSCREEN Membrane Preparation Recombinant Human GAL2 Galanin Receptor - Data Sheet

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      Produits associés classés par : Brand Facete

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      Catégories

      Life Science Research > Drug Discovery and Development > GPCR Cell Lines & Assays > GPCR Membrane Preparations
      Life Science Research > Proteins and Enzymes > GPCR Membrane Preparations