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mGluR5

Products

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All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.

Background

Metabotropic glutamate receptor 5 (mGluR5) is a prototypical metabotropic glutamate receptor: GRM5 gene on human chromosome 11q14. Expression of mGluR5 is highest in the cerebral cortex, hippocampus, striatum, nucleus accumbens and amygdala but is also low in cerebellum, thalamus and spinal cord. Super-resolution microscopy has demonstrated that mGluR5 is enriched at dendritic spines while largely excluded from the core postsynaptic density, instead localizing to peripheral perisynaptic nanodomains, where it can be activated by glutamatergic spillover without requiring close proximity to synapses. Studies show that mGluR5 aberrant signalling can be involved in a remarkably large number of CNS diseases in pathological context.

Fig.1 mGluR5 pathways. (OA Literature)Fig.1 Schematic presentation of mGluRs cell signalling pathways.1

mGluR5 Receptor Function: A Modulator of Synaptic Gain and Plasticity

mGluR5 functional spectrum spans multiple domains of neurophysiology and neuropathology:

  • Synaptic Modulation and NMDA Receptor Crosstalk: Integration into Gq/11 signaling hierarchy is indicative a key contributor to NMDA receptor currents via activation of protein kinases leading to phosphorylation NR1 and NR2B subunits lowering the threshold for LTP/LTD modulation. Controlling synaptic strength in two directions is fundamental for learning, memory and experience-dependent plasticity.
  • Local Dendritic Protein Synthesis: Activation of mGluR5 causes ERK- and mammalian target of rapamycin (mTOR)-dependent pathways, leading to translation of mRNAs locally in the dendritic spines. This circuit refinement pathway is hyperactive in FXS because of loss of the translational repressor, FMRP — synaptic protein production becomes excessive.
  • Neuroinflammation and Neuroprotection: One study has demonstrated that delayed mGluR5 agonist administration following traumatic brain injury limits microglial activation and neuroinflammation while reducing hippocampal neuronal loss. On the other hand, prolonged overactivation can lead to excitotoxicity and neurodegeneration.

mGluR5 Membrane Protein Product

Biophysical characterization of mGluR5 faces unique challenges due to its obligate dimerization, large extracellular domain and conformational flexibility along the VFT–CRD–7TM axis. To this end, Creative Biolabs has developed a proprietary custom mGluR5 protein design platform that provides conformationally intact receptor preparations for structural biology, ligand-binding studies and therapeutic antibody development. We utilize cryo-EM–guided structural insights as well as codon-optimized gene synthesis, and proprietary detergent-screening protocols in our engineering work to identify constructs that provide maximal yield while retaining the glutamate-binding cleft along with the dimerization interface and allosteric pockets. Each project starts with a detailed science briefing to match protein design with your desired application.

mGluR5 Protein Product

Not finding the membrane protein product you need? Contact us to start your one-stop custom service!

mGluR5 Stable Cell Line Product

Cellular steady-state models expressing correctly-dimerized, functional mGluR5 at the plasma membrane are essential for significant calcium flux assays, allosteric modulator screening and validation of therapeutic antibodies. Creative Biolabs designs custom mGluR5 stable cell lines utilizing optimized transduction and selection protocols to obtain homogeneous, maintained receptor expression. With our cell engineering platform, we use lentiviral delivery combined with transposon-mediated integration and targeted knock-in methods to ensure precise regulation of gene expression. All lines go through a monoclonal selection on single cells for clonal purity and are phenotyped.

mGluR5 Stable Cell Line Product

Not finding the stable cell line product you need? Contact us to start your one-stop custom service!

mGluR5 Recombinant Antibody Product

Antibodies with high-affinity and defined sequence against mGluR5 are critical for the detection of the receptor in native brain tissue, separation of intracellular from surface pools, and modulation of receptor trafficking. Creative Biolabs provides end-to-end programs for the discovery of recombinant antibodies directed against mGluR5 (the VFT domain, extracellular loops or intracellular C-terminal). Our antibody discovery pipeline combines immunogen design, multi-platform selection and downstream engineering to provide binders with right specificity, affinity and developability profiles for research. With recombinant expression and clonal sequencing we remove the batch-to-batch variability that is associated with traditional polyclonal sera providing you a renewable, fully characterized reagent.

mGluR5 Recombinant Antibody Product

Not finding the recombinant antibody product you need? Contact us to start your one-stop custom service!

Product Features

  • High Purity & Activity: High purity and verified integrity for dependable downstream work.
  • Diverse Expression Systems: Choice of expression formats to match routine or specialized projects.
  • Species Reactivity: Products available for human, mouse, pig, and other species.
  • Validated Applications: Application-tested to deliver consistent signals across common lab workflows.
  • Exceptional Lot-to-Lot Consistency: Tight lot-to-lot control for reproducible performance.
  • Customization Options: Flexible customization of tags, labels, or packaging upon request.

Custom mGluR5 Membrane Protein and Antibody Discovery Services

More than a standard catalog, Creative Biolabs provides powerful discovery services across the entire mGluR5 research continuum. Our scientists work actively with clients to convert experimental hypotheses into projects that can be done:

  • Custom mGluR5 Receptor Production: Tailored expression, purification, and characterization of challenging multi-domain receptor constructs.
  • Custom Antibody Development: From antigen design to antibody engineering (monoclonal, polyclonal, recombinant) for specific research applications.
  • Stable Cell Line Development: Generation of bespoke stable cell lines expressing your target of interest.
  • Functional Assay Development: Designing and executing assays to assess receptor activation and ligand.

Frequently Asked Questions (FAQ)

  1. Are the mGluR5 products and services from Creative Biolabs for clinical or diagnostic use?

    No. All the mGluR5 proteins, cell lines, antibodies and custom services from Creative Biolabs are for research use only. They have not yet been validated, cleared or approved for human diagnostic, therapeutic or prophylactic use.

  2. Do you provide antibodies for studying mGluR5 receptor conformation or activation?

    We can provide or develop antibodies for mGluR5 research according to specific experimental requirements. Antibody epitope recognition, application suitability, and any ability to distinguish receptor conformational states should be determined based on clone-specific validation data. These reagents may support mGluR5 detection and localization studies in appropriate research systems.

  3. Do you provide stable cell lines for continuous mGluR5 signaling and allosteric modulator studies?

    We can develop customized mGluR5 stable expression or signaling cell models according to specific research requirements. The appropriate G-protein background, reporter or signaling readout, and functional characterization strategy can be selected based on the intended study, including research on agonists, antagonists, and allosteric modulators.

  4. Do you have recombinant mGluR5 variants with substitutions in the allosteric binding pocket or transmembrane domain for comparative modulator affinity and biased signaling studies?

    Yes, we produce recombinant proteins and stable cell lines expressing known variants that affect allosteric modulator sensitivity or G-protein coupling selectivity.

Reference
  1. Azam, Shofiul, et al. "Group I mGluRs in therapy and diagnosis of Parkinson's disease: focus on mGluR5 subtype." Biomedicines 10.4 (2022): 864. Under Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/biomedicines10040864
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