Recombinant Human GOLGA6A Protein: Handling & Usage Protocol

Recombinant Human GOLGA6A Protein is a research-grade reagent designed for investigators studying Golgi apparatus structure, function, and related cellular trafficking pathways.

Product Name

Recombinant Human GOLGA6A Protein

SKU

rp372891

Protein Family

Golgin family (Golgi autoantigen, golgin subfamily a)

Species

Human (Homo sapiens)

Format

Recombinant protein; specific formulation details should be confirmed on product datasheet

Recommended Storage

Store at -80°C upon receipt; avoid repeated freeze-thaw cycles (refer to datasheet for confirmed conditions)

Overview of GOLGA6A and Research Relevance

GOLGA6A (Golgi Autoantigen, Golgin Subfamily A, Member 6A) is a member of the golgin family of coiled-coil proteins that are predominantly localized to the Golgi apparatus. Golgins play critical structural and functional roles in maintaining Golgi morphology, mediating vesicular trafficking, and facilitating the tethering of transport vesicles to Golgi cisternae.

Recombinant Human GOLGA6A Protein (SKU: rp372891) enables researchers to investigate the molecular biology of the Golgi apparatus in vitro. It is relevant to studies of intracellular membrane trafficking, Golgi stack organization, and diseases associated with Golgi dysfunction. The availability of a recombinant form allows for controlled experimental conditions in biochemical and cell biological assays.

Materials Required

Before beginning the protocol, ensure the following materials are available:

• Recombinant Human GOLGA6A Protein (rp372891, Aladdin Scientific)
• Sterile, nuclease-free water or recommended reconstitution buffer (refer to product datasheet for specific buffer composition)
• Microcentrifuge tubes (low-protein-binding, 1.5 mL)
• Micropipettes and calibrated tips
• Vortex mixer
• Microcentrifuge
• Ice bucket or wet ice
• -80°C freezer for long-term storage
• Protein quantification reagents (e.g., BCA or Bradford assay kit)

Note: Always consult the product-specific datasheet provided with the reagent for authoritative formulation, concentration, and buffer details prior to use.

Step-by-Step Reconstitution and Handling Protocol

Step 1 – Receipt and Initial Storage
Upon receipt, immediately transfer the Recombinant Human GOLGA6A Protein to a -80°C freezer if long-term storage is required, or to -20°C for short-term use. Do not leave the product at room temperature for extended periods. Record the lot number and date of receipt for traceability.

Step 2 – Thawing
Thaw the protein gently on ice or at 4°C. Avoid thawing at room temperature or using a water bath, as rapid temperature changes can promote aggregation and denaturation. Once thawed, keep the protein on ice throughout the experiment.

Step 3 – Reconstitution (if supplied lyophilized)
If the protein is supplied in lyophilized form, briefly centrifuge the vial (1,000 × g, 30 seconds) before opening to collect the lyophilized cake at the bottom. Add the recommended volume of sterile reconstitution buffer dropwise to the vial. Gently swirl or pipette to mix; do not vortex vigorously. Allow 10–15 minutes for complete dissolution on ice. Confirm the recommended reconstitution buffer and volume on the product datasheet.

Step 4 – Protein Quantification
Determine the protein concentration using a validated method such as BCA or Bradford assay, using BSA as a standard. Record the measured concentration and compare with the stated concentration on the Certificate of Analysis (CoA).

Step 5 – Aliquoting
Prepare single-use aliquots in low-protein-binding microcentrifuge tubes to minimize freeze-thaw cycles. Label each aliquot with product name, SKU (rp372891), concentration, date, and lot number. Store aliquots at -80°C.

Step 6 – Application
Dilute the protein to the desired working concentration using an appropriate assay buffer compatible with your downstream application (e.g., ELISA, pull-down assays, binding studies). Refer to validated application-specific guidelines and the product datasheet for recommended concentration ranges.

Note: Optimal working concentrations should be determined empirically for each specific assay and experimental system.

Troubleshooting

The following guidance addresses common issues encountered when working with Recombinant Human GOLGA6A Protein:

• Protein aggregation: Ensure thawing is performed slowly on ice. Avoid vortexing. If aggregation is observed, briefly centrifuge at low speed (500–1,000 × g, 5 minutes, 4°C) and use the supernatant. Adding a carrier protein such as BSA (0.1%) to the storage buffer may help stabilize the protein.
• Low activity or unexpected results: Verify that the protein has not undergone more than one freeze-thaw cycle. Confirm that the assay buffer and pH are appropriate. Check the Certificate of Analysis for lot-specific activity data.
• Degradation: Always work on ice and minimize exposure to proteases. Include protease inhibitors in assay buffers where appropriate. Confirm storage conditions have been maintained throughout the cold chain.
• Inconsistent quantification: Ensure the BCA or Bradford assay is performed correctly with freshly prepared standards. Note that certain buffer components can interfere with colorimetric assays; select a compatible method.

Safety and Disposal Considerations

Handle Recombinant Human GOLGA6A Protein in accordance with standard laboratory biosafety practices for recombinant proteins. Although this product is not classified as a biohazard under standard research conditions, researchers should adhere to the following guidelines:

• Wear appropriate personal protective equipment (PPE), including nitrile gloves, a laboratory coat, and eye protection.
• Avoid inhalation of aerosols or direct contact with mucous membranes.
• Dispose of protein solutions and contaminated materials in accordance with institutional biosafety policies and applicable local regulations.
• Do not use reagents beyond their stated expiry date.
• Consult the Safety Data Sheet (SDS) for this product for complete hazard and disposal information.

For research use only (RUO). Not intended for therapeutic, diagnostic, or veterinary use.

Frequently asked questions

What is the recommended storage condition for Recombinant Human GOLGA6A Protein?

For long-term storage, Recombinant Human GOLGA6A Protein (rp372891) should be stored at -80°C. Short-term storage at -20°C may be acceptable depending on the specific formulation. Always refer to the product datasheet and Certificate of Analysis for confirmed storage instructions, and avoid repeated freeze-thaw cycles by preparing single-use aliquots.

How should I reconstitute the lyophilized Recombinant Human GOLGA6A Protein?

If supplied in lyophilized form, briefly centrifuge the vial prior to opening to collect the material at the bottom. Add the recommended volume of sterile reconstitution buffer (specified on the product datasheet) dropwise and gently swirl or pipette to mix. Allow the protein to dissolve on ice for 10–15 minutes. Avoid vigorous vortexing, which can cause denaturation or aggregation.

What applications is Recombinant Human GOLGA6A Protein validated for?

Specific validated applications for rp372891 should be confirmed on the product datasheet and Certificate of Analysis provided by Aladdin Scientific. General applications for recombinant golgin-family proteins in research include biochemical binding assays, protein-protein interaction studies, and use as standards or controls in immunological assays. Optimal working concentrations should be determined empirically for each application.

How can I minimize protein degradation during my experiments?

To minimize degradation, always work on ice and complete experiments as quickly as possible. Include a cocktail of protease inhibitors in your assay buffers where appropriate. Avoid repeated freeze-thaw cycles by using pre-prepared aliquots, and do not leave the protein at room temperature for extended periods. Discard any aliquot that shows visible precipitation or signs of degradation.

Is Recombinant Human GOLGA6A Protein suitable for in vivo or clinical use?

No. Recombinant Human GOLGA6A Protein (rp372891) is intended for research use only (RUO). It is not approved, validated, or intended for therapeutic, diagnostic, clinical, or veterinary applications. Researchers must adhere to institutional and regulatory guidelines governing the use of recombinant proteins in their respective research settings.

References

1. Munro S. The golgin coiled-coil proteins of the Golgi apparatus. Cold Spring Harb Perspect Biol. 2011;3(6):a005256. doi:10.1101/cshperspect.a005256
2. Aladdin Scientific. Recombinant Human GOLGA6A Protein (rp372891) Product Datasheet. Aladdin Scientific; [accessed 2024].
3. Gillingham AK, Munro S. Finding the Golgi: Golgin coiled-coil proteins show the way. Trends Cell Biol. 2016;26(6):399-408. doi:10.1016/j.tcb.2016.02.005

Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.