Recombinant Human C8orf58 Protein: Handling & Usage Protocol
Recombinant Human C8orf58 Protein: Handling & Usage Protocol
Recombinant Human C8orf58 Protein is a research-grade recombinant protein supplied by Aladdin Scientific that requires careful reconstitution, storage, and handling to maintain biological activity and ensure reproducible performance in downstream experimental applications.
- Product Name
- Recombinant Human C8orf58 Protein
- SKU
- rp376077
- Species
- Human (Homo sapiens)
- Protein Type
- Recombinant protein
- Recommended Storage
- Store at -80 °C for long-term; avoid repeated freeze-thaw cycles
- Application
- Suitable for use in biochemical and cell-based research assays
Materials Required
Before beginning, ensure the following materials are available in your laboratory:
- Recombinant Human C8orf58 Protein (Aladdin Scientific, SKU: rp376077)
- Sterile, nuclease-free deionized water or reconstitution buffer as specified on the product datasheet
- Low-binding microcentrifuge tubes (1.5 mL)
- Calibrated micropipettes and sterile tips
- Refrigerated microcentrifuge
- Vortex mixer
- Ice bucket with wet ice
- Appropriate assay buffers for downstream applications
- Protein quantification reagents (e.g., BCA or Bradford assay kit)
Note: Always consult the specific product datasheet for product-specific reconstitution buffer recommendations and concentration details prior to use.
Reconstitution Procedure
Follow these steps carefully to reconstitute Recombinant Human C8orf58 Protein:
- Preparation: Remove the vial from -80 °C storage and allow it to equilibrate at room temperature for 10–15 minutes. Do not expose to temperatures above room temperature for extended periods.
- Brief centrifugation: Briefly centrifuge the vial (approximately 5 seconds at low speed) to collect lyophilized material at the bottom of the tube.
- Addition of reconstitution buffer: Add the volume of sterile reconstitution buffer recommended on the product datasheet slowly and directly onto the lyophilized pellet. Do not pipette directly onto the interior walls of the vial.
- Dissolution: Gently pipette up and down or swirl the vial gently to dissolve the protein. Avoid vigorous vortexing, which may denature the protein.
- Incubation: Allow the reconstituted solution to stand at room temperature for 5–10 minutes to ensure complete dissolution.
- Verification: Inspect the solution visually for clarity. A turbid or particulate solution may indicate incomplete reconstitution or protein aggregation.
- Protein quantification: Determine the protein concentration using a validated assay (e.g., BCA assay) against a standard curve.
Important: If carrier protein (e.g., BSA) is to be added, consult the product datasheet for compatibility before proceeding.
Storage and Stability
Proper storage is critical to maintaining the activity and integrity of Recombinant Human C8orf58 Protein:
- Long-term storage: Store the lyophilized protein at -80 °C. Under these conditions, the protein is expected to remain stable for the period indicated on the product datasheet.
- Short-term storage: Reconstituted protein may be stored at 4 °C for short-term use (typically up to 1 week). Consult the product datasheet for specific stability data.
- Aliquoting: Upon reconstitution, divide the protein solution into single-use aliquots in low-binding microcentrifuge tubes to minimize freeze-thaw cycles.
- Freeze-thaw cycles: Avoid repeated freeze-thaw cycles, as each cycle can lead to protein aggregation, loss of activity, and reduced experimental reproducibility.
- Carrier protein: Addition of a carrier protein such as BSA (typically 0.1% final concentration) may enhance stability during storage; verify compatibility with your specific assay before use.
Note: Always refer to the specific product datasheet (rp376077) for confirmed storage conditions, expiry information, and stability data, as these may differ from general guidance.
Experimental Application Guidelines
Recombinant Human C8orf58 Protein can be employed in a range of biochemical and cell-based research assays. Follow these general guidelines to optimize experimental performance:
- Working concentration: Optimal working concentrations should be determined empirically for each assay system. Refer to the product datasheet for any application-specific concentration recommendations.
- Assay compatibility: Confirm that the reconstitution buffer and any excipients are compatible with your downstream assay format before setting up experiments.
- Controls: Always include appropriate positive and negative controls in each experiment to validate assay performance and protein activity.
- Protein activity verification: Where possible, verify protein activity using a functional assay or a validated binding partner before committing large quantities to experiments.
- Dilutions: Prepare working dilutions in assay-compatible buffer immediately before use. Do not store diluted protein solutions for extended periods.
Disclaimer: C8orf58 is a protein of incompletely characterized function. Users are advised to consult current literature for the most up-to-date information regarding its biological roles and validated assay formats.
Troubleshooting
Consult the following troubleshooting guide if you encounter difficulties during reconstitution or experimental use:
| Problem | Possible Cause | Recommended Action |
|---|---|---|
| Turbid or cloudy solution after reconstitution | Protein aggregation; insufficient reconstitution | Allow longer incubation at room temperature; briefly centrifuge at low speed; ensure correct buffer and volume were used |
| Loss of protein activity | Repeated freeze-thaw cycles; improper storage temperature | Aliquot protein into single-use volumes; store at -80 °C; avoid prolonged exposure to room temperature |
| Lower-than-expected signal in assay | Protein degradation; incorrect working concentration | Verify protein concentration by BCA assay; optimize working concentration empirically; check expiry date |
| High background in assay | Contamination; non-specific binding | Use low-binding tubes; include appropriate blocking steps; verify buffer compatibility |
If problems persist, contact Aladdin Scientific technical support for further assistance.
Frequently asked questions
What is the recommended reconstitution buffer for Recombinant Human C8orf58 Protein?
The recommended reconstitution buffer and volume are specified on the product datasheet for rp376077. In general, sterile deionized water or a PBS-based buffer is commonly used for recombinant proteins, but users must always verify the specific recommendation on the datasheet to avoid compromising protein activity.
How should I store Recombinant Human C8orf58 Protein to maximize its shelf life?
Store the lyophilized protein at -80 °C in its original sealed vial until use. After reconstitution, aliquot the protein into single-use volumes in low-binding microcentrifuge tubes and store at -80 °C for long-term use or at 4 °C for up to one week. Avoid repeated freeze-thaw cycles, as these can cause protein aggregation and loss of activity.
How many freeze-thaw cycles can Recombinant Human C8orf58 Protein tolerate?
As a general best practice for recombinant proteins, repeated freeze-thaw cycles should be minimized. It is recommended to aliquot the protein into single-use volumes upon reconstitution to avoid subjecting the stock to multiple freeze-thaw cycles. Consult the product datasheet for product-specific guidance on freeze-thaw tolerance.
What downstream assays is Recombinant Human C8orf58 Protein suitable for?
Recombinant Human C8orf58 Protein is intended for use in biochemical and cell-based research assays. Specific validated applications are listed on the product datasheet for rp376077. Users should optimize working concentrations empirically for each assay format and consult current literature for guidance on assay design.
Who should I contact if I experience technical difficulties with this product?
If you experience technical difficulties with Recombinant Human C8orf58 Protein (rp376077), please contact Aladdin Scientific's technical support team. Provide your order number, lot number, a description of the issue, and details of your experimental setup to facilitate efficient troubleshooting.
References
- Aladdin Scientific. Recombinant Human C8orf58 Protein, SKU rp376077. Product Datasheet. Aladdin Scientific.
- Wingfield PT. Overview of the purification of recombinant proteins. Curr Protoc Protein Sci. 2015;80:6.1.1-6.1.35.
Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.