Overview of GRIK1 and Its Biological Significance

GRIK1, also known as Glutamate Ionotropic Receptor Kainate Type Subunit 1 (GluK1), is a member of the kainate receptor subfamily within the ionotropic glutamate receptor (iGluR) superfamily. Kainate receptors are ligand-gated ion channels that mediate fast excitatory neurotransmission in the central nervous system (CNS) by responding to the neurotransmitter glutamate.

GRIK1 is expressed predominantly in neurons throughout the brain, including the spinal cord, hippocampus, and cortex. It participates in both pre- and postsynaptic signaling, modulating neurotransmitter release and neuronal excitability. Dysregulation of GRIK1 has been implicated in neurological and psychiatric conditions including epilepsy, schizophrenia, and chronic pain, making it a key target for neuropharmacological investigation.

Recombinant Human GRIK1 Protein (SKU: rp364821) enables researchers to conduct in vitro biochemical and biophysical experiments without the constraints of isolating native receptor material from neural tissue, providing a reproducible and well-characterized reagent for mechanistic studies.

Protein Specifications and Quality Attributes

Recombinant Human GRIK1 Protein is produced using recombinant expression technology to ensure batch-to-batch consistency and defined biochemical characteristics. Researchers should consult the official product datasheet (Absea #PP-278) for the precise molecular weight, tag information, expression host, purity grade, and endotoxin level specific to this product.

Key quality attributes to verify before experimental use include:

• Purity: Confirm purity percentage by SDS-PAGE or equivalent analytical method as stated on the certificate of analysis (CoA).
• Endotoxin level: Critical for cell-based assays; verify endotoxin content meets acceptable thresholds for intended applications.
• Biological activity: Where applicable, confirm activity via binding assays or functional assays as described in the datasheet.
• Formulation: Note the buffer composition and any carrier proteins (e.g., BSA) or stabilizers present in the formulation, as these may affect downstream assay design.

All specifications should be cross-referenced with the lot-specific CoA supplied with each shipment.

Reconstitution, Handling, and Storage Protocol

Proper handling of Recombinant Human GRIK1 Protein is essential to preserve its structural integrity and functional activity. Follow the guidelines below and always refer to the product-specific datasheet for definitive instructions.

Reconstitution

1. Briefly centrifuge the vial before opening to collect lyophilized material at the bottom (if supplied in lyophilized form).
2. Reconstitute with the volume of sterile, deionized water or recommended buffer specified on the datasheet to achieve the desired stock concentration.
3. Allow the solution to equilibrate for 10–15 minutes at room temperature with gentle swirling; do not vortex vigorously.
4. Prepare single-use aliquots to minimize freeze-thaw cycles.

Storage Conditions

• Store lyophilized protein at -20°C or -80°C, protected from moisture and light.
• Reconstituted protein should be stored at -80°C for long-term stability; working aliquots may be kept at -20°C for short-term use.
• Avoid more than two freeze-thaw cycles to prevent protein aggregation and loss of activity.

Working Concentration

Optimal working concentrations are assay-dependent. Titration experiments are recommended to determine the appropriate concentration for each specific application.

Experimental Applications and Assay Guidance

Recombinant Human GRIK1 Protein is suitable for a range of in vitro research applications in neuroscience and pharmacology. Representative uses include:

• Binding Assays: Investigate ligand–receptor interactions, including agonist (e.g., kainate, glutamate) and antagonist binding profiles, using radioligand binding or surface plasmon resonance (SPR) approaches.
• Protein–Protein Interaction Studies: Explore interaction partners of GRIK1 using co-immunoprecipitation, pull-down assays, or proximity ligation assays.
• Structural Biology: Provide recombinant antigen for antibody generation, validation, and epitope mapping studies.
• Drug Discovery Screening: Use as a target protein in high-throughput screening (HTS) campaigns to identify novel modulators of kainate receptor function.
• Western Blot / ELISA Standards: Serve as a positive control or quantitative standard in immunodetection assays.

Always include appropriate positive and negative controls in each assay. Validate activity of each new lot before initiating critical experiments.

Troubleshooting Common Issues

Researchers may encounter the following issues when working with Recombinant Human GRIK1 Protein. The guidance below provides first-line troubleshooting steps:

For unresolved issues, contact Aladdin Scientific technical support with your lot number and CoA for rapid assistance.