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HTS141M ChemiSCREEN™ Membrane Preparation Recombinant Human 5-HT5A Serotonin Receptor

Human 5-HT5A GPCR membrane preparation for Radioligand binding Assays & GTPγS binding.

MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.
Host Cell: Chem-1 Uni Prot Number: P47898 Entrez Gene Number: NM_024012
HTS141M
200 units  
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      Overview

      Replacement Information

      Key Specifications Table

      SpeciesHost CellsProtein Target
      Human Chem-15-HT5A
      Description
      Catalogue NumberHTS141M
      Brand Family Chemicon®
      Trade Name
      • ChemiScreen
      • Chemicon
      DescriptionChemiSCREEN™ Membrane Preparation Recombinant Human 5-HT5A Serotonin Receptor
      OverviewHuman 5-HT5A
      Background InformationThe neurotransmitter serotonin/5-hydroxytryptamine (5-HT) regulates a wide variety of neurological functions. A family of 13 receptors (12 GPCRs and one ion channel) mediate the effects of serotonin (Hoyer et al., 1994). The serotonin receptors 5-HT5A and 5-HT5B are Gi/o coupled receptors mainly expressed in the CNS but not in peripheral organs. 5-HT5A is found in rodents and humans and is broadly expressed in the CNS whereas 5-HT5B exists in rodents, but not humans, and is expressed in a more restricted fashion (Grailhe et al., 2001). The hallucinogenic drug LSD functions as a partial agonist at 5-HT5A, and mice lacking 5-HT5A display reduced LSD-induced locomotion (Nelson 2004). HT5A receptors may also be involved in a neuronally-driven mechanism for regulating astrocyte physiology, with relevance to gliosis (Glennon et al., 2000).

      Millipore's 5-HT5A 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 5-HT5A interactions and its ligands. The membrane preparations exhibit a Kd of 67.7 nM for [3H]-5-CT (Carboxamidotryptamine). With 30 nM [3H]- 5-CT, 10 μg/well 5-HT5A Membrane Prep yields greater than 3-fold signal-to-background ratio.
      References
      Product Information
      FormatMembranes
      PresentationLiquid in packaging buffer: 50 mM Tris pH 7.4, 10% glycerol and 1% BSA with no preservatives.
      Packaging method: Membrane protein was adjusted to the indicated concentration in packaging buffer, rapidly frozen, and stored at -80°C.
      Quality LevelMQ300
      Applications
      ApplicationHuman 5-HT5A 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
      Gene Symbol
      • HTR5A
      GPCR ClassA
      Host CellsChem-1
      Protein Target5-HT5A
      Target Sub-FamilySerotonin
      UniProt Number
      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, 4 mM CaCl2, 0.5 mM Ascorbic Acid filtered and stored at 4°C
      Radioligand: [3H]-5-Carboxamidotryptamine (Perkin Elmer #:NET1071)
      Wash Buffer: 50 mM Hepes, pH 7.4, 5 mM MgCl2, 4 mM CaCl2, 0.5 mM Ascorbic Acid, filtered and stored at 4°C.

      One package contains enough membranes for at least 200 assays (units), where an unit is the amount of membrane that will yield greater than 3-fold signal:background with 3H-labeled 5-carboxamidotryptamine at 30.0 nM.
      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 varying amounts of 5-HT5A membrane prep.
      Product Usage Statements
      10 µg/well
      Signal:Background 5.4
      Specific Binding (cpm) 693

      SPECIFICATIONS: 1 unit = 10 μg membrane preparation
      Bmax: 28.7 pmol/mg
      Kd: 67.7 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 ConditionsStore at -70°C. Product is stable for at least 6 months from the date of receipt when stored as directed. Do not freeze and thaw.
      Packaging Information
      Material Size200 units
      Transport Information
      Supplemental Information
      Specifications
      Global Trade Item Number
      Catalog Number GTIN
      HTS141M 04053252675683

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      Life Science Research > Proteins and Enzymes > GPCR Membrane Preparations