What Is GNG12 and Why Is It Important?

GNG12 (G Protein Subunit Gamma 12) encodes the gamma-12 subunit of heterotrimeric GTP-binding proteins (G proteins). Heterotrimeric G proteins are composed of alpha (Gα), beta (Gβ), and gamma (Gγ) subunits and serve as critical molecular switches in intracellular signal transduction. Upon activation by G protein-coupled receptors (GPCRs), the Gβγ dimer — of which GNG12 forms a part — dissociates from Gα and modulates downstream effectors including ion channels, adenylyl cyclase, and phospholipase C.

GNG12 has been implicated in diverse biological processes including cell migration, proliferation, and neuronal signaling. Research into GNG12 contributes to the broader understanding of GPCR biology, which is highly relevant to drug discovery given that GPCRs represent one of the largest classes of therapeutic targets.

Recombinant Human GNG12 Protein: Product Overview

Aladdin Scientific's Recombinant Human GNG12 Protein (SKU: rp372906) is produced for use in biochemical and cell biological research applications. As a recombinant protein, it is generated using a defined expression system to provide researchers with a consistent and reproducible source of human GNG12 for in vitro studies.

Typical research applications include:

• Studying Gβγ dimer assembly and function
• Biochemical binding and interaction assays (e.g., co-immunoprecipitation, pull-down assays)
• Structural and biophysical characterization
• Functional reconstitution experiments with GPCR systems

Researchers should consult the product datasheet for lot-specific information on purity, concentration, formulation, and endotoxin levels prior to use.

Handling, Storage, and Stability Guidelines

Proper handling and storage of recombinant proteins is essential to maintain activity and integrity. The following general best practices apply to Recombinant Human GNG12 Protein:

• Storage temperature: Store at -80°C for long-term preservation. Short-term storage at -20°C may be acceptable but is not recommended for periods exceeding two weeks.
• Freeze-thaw cycles: Minimize the number of freeze-thaw cycles. Aliquot the protein upon first thaw to avoid repeated freezing.
• Reconstitution: If supplied lyophilized, reconstitute according to the datasheet instructions using the recommended buffer. Allow the protein to equilibrate to room temperature briefly before reconstitution.
• Working concentration: Determine empirically for each assay type. Pilot experiments are recommended to optimize conditions.
• Carrier protein: Addition of a carrier protein (e.g., 0.1% BSA) may help stabilize dilute protein solutions.

Always consult the product-specific datasheet for formulation details, as conditions may vary by lot.

Recommended Applications and Experimental Tips

Recombinant Human GNG12 Protein is suited for several research contexts. Below are guidance notes for common application areas:

Protein-Protein Interaction Studies: GNG12 naturally forms complexes with Gβ subunits. Pull-down or co-immunoprecipitation assays using tagged versions of Gβ partners can be used to validate interaction specificity and map binding interfaces.

Biochemical Assays: The protein can serve as a reference standard or binding partner in ELISA-based or SPR (surface plasmon resonance) assays designed to assess interaction kinetics with Gβ subunits or downstream effectors.

Structural Studies: Purified recombinant GNG12 may be used in cryo-EM or X-ray crystallography workflows, typically in complex with its Gβ binding partner, to obtain structural insights into Gβγ dimer architecture.

Functional Reconstitution: GNG12 can be incorporated into reconstituted GPCR signaling systems to study the contribution of specific Gγ isoforms to receptor coupling and downstream signaling selectivity.

Note: Validate protein activity using an appropriate functional assay before use in critical experiments. Lot-to-lot consistency should be confirmed by SDS-PAGE or Western blot.

Quality, Purity, and Regulatory Considerations

Recombinant proteins supplied for research use are subject to quality control measures to ensure suitability for intended applications. For Recombinant Human GNG12 Protein (rp372906), researchers should review the certificate of analysis (CoA) provided with each lot, which typically includes:

• Purity assessment (e.g., by SDS-PAGE or HPLC)
• Identity confirmation (e.g., by Western blot or mass spectrometry)
• Endotoxin level testing (relevant for cell-based assays)
• Concentration and formulation details

This product is intended for research use only (RUO) and is not suitable for diagnostic, therapeutic, or clinical applications. Researchers working under institutional biosafety guidelines should ensure appropriate containment procedures are followed when handling recombinant proteins.

For questions about lot-specific data, custom bulk orders, or regulatory documentation, contact Aladdin Scientific's technical support team.