Background: GOLGA7B and Its Biological Role

GOLGA7B (Golgin A7 Family Member B) is a member of the golgin family of coiled-coil proteins that localize to the Golgi apparatus. Golgins play essential structural and functional roles in maintaining Golgi architecture and mediating vesicular trafficking between compartments. GOLGA7B has been identified as an accessory factor in protein S-palmitoylation, a lipid post-translational modification critical for membrane association, protein sorting, and signal transduction.

In particular, GOLGA7B has been reported to interact with and facilitate the activity of Golgi-resident DHHC-family palmitoyl acyltransferases (PATs), influencing the palmitoylation of substrate proteins including H-Ras and N-Ras. Understanding GOLGA7B function is therefore relevant to oncology, membrane biology, and intracellular trafficking research.

Reconstitution and Storage Protocol

Materials Required: Sterile deionized water or the buffer recommended in the product datasheet, low-binding microcentrifuge tubes, dry ice or liquid nitrogen for snap-freezing aliquots.

Reconstitution Steps:

1. Briefly centrifuge the vial at low speed (e.g., 1,000 × g for 30 seconds) to collect lyophilized material at the bottom before opening.
2. Add the volume of sterile reconstitution buffer specified on the Certificate of Analysis (CoA) to achieve the desired working concentration. Gently pipette to mix; avoid vortexing.
3. Allow the protein to dissolve for 10–15 minutes at room temperature or on ice with occasional gentle mixing.
4. Confirm complete solubilization by visual inspection. If the solution appears turbid, centrifuge at 10,000 × g for 5 minutes at 4 °C and use the supernatant.

Storage: Aliquot the reconstituted protein into single-use volumes using low-binding tubes. Store working aliquots at -20 °C for up to 1 month, or at -80 °C for extended storage. Avoid repeated freeze-thaw cycles, as this may compromise protein activity and integrity.

Experimental Applications and Assay Guidance

Recombinant Human GOLGA7B Protein (rp372893) is suitable for a range of in vitro research applications, including:

• Protein–Protein Interaction Studies: Use in pull-down assays, co-immunoprecipitation validation, or surface plasmon resonance (SPR) to characterize GOLGA7B interactions with DHHC palmitoyl acyltransferases or other Golgi-resident proteins.
• Biochemical Characterization: Substrate for in vitro palmitoylation assays when studying DHHC enzyme activity or confirming enzyme–accessory factor relationships.
• Antibody Validation: Use as a positive control antigen in Western blot or ELISA to validate anti-GOLGA7B antibodies.
• Structural Studies: Suitable as starting material for biophysical characterization techniques such as circular dichroism (CD) or analytical ultracentrifugation, subject to purity and buffer requirements.

Always determine the optimal protein concentration empirically for each specific assay format. Consult the Certificate of Analysis for lot-specific purity, concentration, and activity data before use.

Quality Control and Safety Considerations

Quality Control: Each lot of Recombinant Human GOLGA7B Protein undergoes quality control testing prior to release. Typical QC analyses include SDS-PAGE for purity assessment and, where applicable, functional activity verification. Refer to the Certificate of Analysis (CoA) supplied with each lot for specific QC data, including purity percentage, endotoxin levels, and storage buffer composition.

Safety: Recombinant Human GOLGA7B Protein is intended for research use only (RUO) and is not approved for diagnostic, therapeutic, or veterinary use. Standard laboratory safety practices should be observed when handling this protein. Wear appropriate personal protective equipment (PPE) including gloves, lab coat, and eye protection. Consult the Safety Data Sheet (SDS) for specific hazard information and disposal guidelines.

Regulatory Note: This product complies with standard research reagent quality requirements. It is not a medicinal product and should not be used in clinical settings.