Overview of Recombinant Human GCET1 Protein

GCET1, encoded by the GCET1 gene (also known as C17orf40), is a protein preferentially expressed in germinal center B-cells. It has been identified as a marker associated with germinal center B-cell-like (GCB) diffuse large B-cell lymphoma (DLBCL), making it of significant interest in lymphoma classification and research. Recombinant Human GCET1 Protein (SKU: rp368451) is produced to support in vitro research applications including biomarker studies, antibody validation, and functional assays. Researchers should consult the product-specific datasheet for confirmed expression system, tag information, purity grade, and formulation details, as these parameters are essential for experimental design.

Reconstitution and Storage Protocol

Proper reconstitution and storage are critical for maintaining the biological activity and integrity of Recombinant Human GCET1 Protein. Follow the steps below as general guidance; always refer to the product-specific datasheet for exact volumes and conditions:

1. Centrifugation: Upon receipt, briefly centrifuge the vial (1,000–2,000 × g for 30 seconds) to collect lyophilized material at the bottom before opening.
2. Reconstitution: Reconstitute the lyophilized protein in sterile deionized water or an appropriate buffer (e.g., PBS, pH 7.4) to the recommended concentration stated on the datasheet. Allow the vial to sit at room temperature for 5–10 minutes after adding the reconstitution buffer; gently swirl or pipette to mix. Avoid vigorous vortexing, which may cause protein denaturation.
3. Aliquoting: Prepare single-use aliquots immediately after reconstitution to minimize freeze-thaw cycles. Repeated freeze-thaw cycles are known to reduce protein activity.
4. Short-term Storage: Store reconstituted protein at 4°C for up to 7 days if used promptly.
5. Long-term Storage: For long-term storage, freeze aliquots at -20°C or -80°C. Addition of a carrier protein such as 0.1% BSA may help stabilize the protein during storage; verify compatibility with your downstream assay before use.

Note: Specific reconstitution volumes, recommended storage buffers, and stability data should be verified against the official Aladdin product datasheet for SKU rp368451.

Recommended Applications and Working Concentrations

Recombinant Human GCET1 Protein is suitable for a range of in vitro research applications. The following guidance reflects general best practices for recombinant proteins of this class:

• ELISA (Enzyme-Linked Immunosorbent Assay): GCET1 protein can serve as a standard or capture/detection antigen in sandwich or direct ELISA formats. Optimize coating concentrations empirically, typically starting at 0.5–2 µg/mL.
• Western Blot (WB): Use as a positive control for anti-GCET1 antibody validation. Load 50–200 ng per lane as a starting point and optimize accordingly.
• Antibody Production and Validation: Suitable as an immunogen or validation antigen for generating and screening GCET1-specific antibodies.
• Functional and Binding Assays: Can be used in protein-protein interaction studies and binding assays relevant to B-cell biology and lymphoma research pathways.

Note: Confirmed application data and validated working concentration ranges should be taken from the official product datasheet for SKU rp368451. Optimize all concentrations empirically for your specific experimental system.

Quality Control and Troubleshooting

Ensuring the quality and activity of Recombinant Human GCET1 Protein is essential for obtaining reliable experimental results. Consider the following quality control measures and troubleshooting tips:

• Purity Assessment: Verify protein purity by SDS-PAGE before use. The expected purity for research-grade recombinant proteins is typically ≥85–95%; consult the datasheet for the specification for SKU rp368451.
• Identity Confirmation: Confirm protein identity by Western blot using a validated anti-GCET1 antibody.
• Activity Testing: Where functional activity data are provided on the datasheet, perform a preliminary activity assay to confirm lot-to-lot consistency.
• Common Issues and Solutions:
  • Protein precipitation: Ensure reconstitution buffer is compatible and the protein is fully dissolved. Centrifuge briefly (10,000 × g, 5 min) to remove aggregates before use.
  • Low signal in assay: Check protein integrity by SDS-PAGE; verify storage conditions were maintained; ensure the detection antibody recognizes the recombinant form.
  • Reduced activity after storage: Minimize freeze-thaw cycles; consider adding a stabilizer such as BSA or glycerol as indicated by the datasheet.