"GRM1" Related Products


Human GRM1/Galpha15 Stable Cell Line-Chem-3

Cat.No.: CSC-RG0671
Cell Line Description: This human mGlu1-expressing cell line is made in the Chem-3 host, which supports high levels of recombinant mGlu1 expression on the cell surface and contains high levels of the promiscuous G protein Galpha15 to couple the receptor to the calcium signaling pathway. Thus, the cell line is an ideal tool for screening for functional screening agonists, antagonists and modulators of mGlu1.
Background: Glutamate is a main excitatory neurotransmitter in the central nervous system, and it plays a role in learning, memory and neurotoxicity. The biological actions of glutamate are mediated by ionotropic and metabotropic glutamate receptors, which are ion channels and GPCRs respectively. Metabotropic glutamate receptors (mGluRs) are members of the class 3 G-protein coupled receptor family, which are characterized by a large extracellular domain. They are further classified into group I, II, and III mGluRs on the basis of their sequence identity, pharmacology, and signal transduction mechanism. Group I (mGlu1 and mGlu5) couple to the phospholipase C pathway through Galphaq, whereas group II (mGlu2 and mGlu3) and group III (mGlu4 , mGlu6 , mGlu7 , and mGlu8) negatively couple to the adenylyl cyclase pathway though Galphai. The mGlu1 has been implicated in neurodegeneration, as indicated by a decrease in the mGlu1 signaling in the cerebral cortex of Alzheimer"s disease and dementia with Lewy bodies. In addition, studies with pharmacological inhibitors of mGlu1 and mGlu1 knockout mice indicate a role for mGlu1 in prepulse inhibition, motor and spatial learning, and anxiety.
Growth Properties: Adherent
Host Cell: Chem-3
Cell Line Validation: 1. Gene expression: qPCR experiments determined specific silencing of GRM1. 2. Protein expression: GRM1 in this cell line has been validated by immunocytochemical staining.
Application: Calcium flux assay
Sub-type: Glutamate
Propagation: Complete growth medium: RPMI-1640 containing 0.3 g/L L-glutamine, no pyruvate + 10% heat-inactivated FBS + 100 U/ml penicillin + 100 U/ml streptomycin + 1% Chem-3 Growth Supplement + G-418/Geneticin (600ug/mL)Note: The Chem-3 Growth Supplement is required for growth of Chem-3 cell linesPlating medium: RPMI-1640 containing 0.3 g/L L-glutamine, no pyruvate + 10% heat-inactivated FBS + 100 U/ml penicillin + 100 U/ml streptomycinAtmosphere: air, 95%; carbon dioxide (CO2), 5%. Temperature: 37 °C
Starting Cells From Frozen Cell Stock: 1. Immediately upon receipt, thaw cells or place cells in liquid nitrogen. Maintain frozen in liquid nitrogen for up to 5 years. 2. Thaw cells rapidly by removing from liquid nitrogen and immediately immersing in a 37°C water bath. Immediately after ice has thawed, sterilize the exterior of the vial with 70% ethanol. Transfer contents of the vial to a conical tube containing 10 mL Growth Media. Centrifuge at 200 x g for 5 min. Remove the supernatant and resuspend the cell pellet in 20 mL Growth Media. Transfer to a T75 flask and place the flask in a humidified incubator at 37 degree °C with 5% CO2.
Subculturing: 1. Maintain the cells in suspension between 0.1 x 10^6 and 1 x 10^6 cells/mL. 2. Cells are typically passaged 1:10 every 2-3 days, or 1:20 every 3-4 days. Passaging ratio may be varied according to requirements of the investigator. Chem-3 cells tend to proliferate rapidly, so care should be taken not to allow them to become overconfluent.
Mycoplasma: Mycoplasma Status: Negative (MycoAlert Kit)
Freeze Medium: Freezing medium: RPMI-1640 containing 0.3 g/L L-glutamine, no pyruvate + 20% heat-inactivated FBS + 10% DMSO
Storage: Liquid nitrogen
Preservation: 1. Frozen stocks of cells should be prepared at the earliest passage possible after thawing, as follows: Count cells. Centrifuge cells at 200 x g for 5 min. Resuspend cells at 2-5 x 10^6 cells/mL in Freezing Media. Dispense 1 mL aliquots into cryopreservation vials. Freeze the cells by a controlled rate process, such as in an isopropanol-jacketed container placed at –70°C overnight. Store the vials in liquid nitrogen. 2. Cells should be passaged at least once after thawing prior to use in calcium flux assays.
Safety Considerations: The following safety precautions should be observed.1. Use pipette aids to prevent ingestion and keep aerosols down to a minimum.2. No eating, drinking or smoking while handling the stable line.3. Wash hands after handling the stable line and before leaving the lab.4. Decontaminate work surface with disinfectant or 70% ethanol before and after working with stable cells.5. All waste should be considered hazardous.6. Dispose of all liquid waste after each experiment and treat with bleach.
Ship: Dry ice
Gene Name: GRM1 glutamate receptor, metabotropic 1 [ Homo sapiens ]
Official Symbol: GRM1
Synonyms: GRM1; glutamate receptor, metabotropic 1; metabotropic glutamate receptor 1; GPRC1A; mGlu1; MGLUR1; GRM1A; MGLUR1A;
Gene ID: 2911
mRNA Refseq: NM_000838
Protein Refseq: NP_000829
MIM: 604473
UniProt ID: Q13255
Chromosome Location: 6q24
Pathway: Calcium signaling pathway, organism-specific biosystem; Calcium signaling pathway, conserved biosystem; Class C/3 (Metabotropic glutamate/pheromone receptors), organism-specific biosystem; GPCR ligand binding, organism-specific biosystem; GPCRs, Class C Metabotropic glutamate, pheromone, organism-specific biosystem; GPCRs, Other, organism-specific biosystem; Gap junction, organism-specific biosystem;
Function: G-protein coupled receptor activity; estrogen receptor binding; glutamate receptor activity; receptor activity; signal transducer activity;

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