Recombinant Human GGNBP2 Protein: Protocol & Usage Guide

Recombinant Human GGNBP2 Protein is a research-grade recombinant protein designed to support investigations into gametogenesis regulation and tumor-suppressive signaling pathways in human cells.

Product Name

Recombinant Human GGNBP2 Protein

SKU

rp375071

Species

Human (Homo sapiens)

Protein Type

Recombinant protein

Primary Research Area

Gametogenesis, reproductive biology, oncology

Recommended Storage

-20°C or -80°C; avoid repeated freeze-thaw cycles

Overview of GGNBP2 and Its Biological Significance

GGNBP2 (Gametogenetin-Binding Protein 2) is a nuclear protein that interacts with gametogenetin and plays a critical role in the regulation of spermatogenesis and gametogenesis. It has been identified as a potential tumor suppressor, with expression studies suggesting that reduced GGNBP2 levels may correlate with oncogenic progression in certain cancer types.

Recombinant Human GGNBP2 Protein (SKU: rp375071) produced by Aladdin Scientific is intended for use in in vitro research applications such as binding assays, functional studies, and antibody validation. Researchers working in reproductive biology, cancer biology, and protein interaction studies will find this reagent particularly relevant.

Reagents, Materials, and Equipment

Before beginning, ensure that the following materials are available:

• Recombinant Human GGNBP2 Protein (rp375071, Aladdin Scientific)
• Sterile, nuclease-free water or an appropriate reconstitution buffer (e.g., PBS, pH 7.4, containing a carrier protein such as 0.1% BSA if required)
• Microcentrifuge tubes (low-binding recommended)
• Calibrated micropipettes and sterile tips
• Refrigerated microcentrifuge
• Dry ice or liquid nitrogen for snap-freezing aliquots
• Appropriate downstream assay reagents (e.g., ELISA kit, binding assay buffers)

Note: Always consult the product datasheet (absea#PP-8805) for lot-specific concentration and formulation details prior to use.

Step-by-Step Protocol: Reconstitution and Handling

Follow these steps carefully to ensure protein integrity and experimental reproducibility:

1. Equilibration: Allow the lyophilized vial to equilibrate to room temperature for 10–15 minutes before opening. This reduces condensation and potential protein degradation.
2. Reconstitution: Add the recommended volume of sterile reconstitution buffer (refer to product datasheet absea#PP-8805 for exact volume) slowly along the side of the vial. Do not pipette directly onto the lyophilized cake.
3. Dissolution: Gently swirl or rotate the vial for 1–2 minutes. Do not vortex, as mechanical shear can denature the protein.
4. Centrifugation: Briefly centrifuge the vial (e.g., 500 × g for 30 seconds) to collect any solution from the walls and cap.
5. Aliquoting: Divide the reconstituted protein into single-use aliquots using low-binding microcentrifuge tubes to minimize freeze-thaw degradation.
6. Storage: Store working aliquots at -20°C for short-term use (up to 1 month) or at -80°C for long-term storage. Avoid repeated freeze-thaw cycles (limit to ≤3 cycles).
7. Quality check: Before use, verify protein integrity by SDS-PAGE or activity assay as appropriate.

Research Applications

Recombinant Human GGNBP2 Protein is suitable for a range of in vitro research applications, including but not limited to:

• Protein–protein interaction studies: Investigating GGNBP2 binding partners such as gametogenetin using pull-down or co-immunoprecipitation assays.
• Functional assays: Assessing GGNBP2 roles in cell proliferation, apoptosis, or transcriptional regulation in relevant cell line models.
• Antibody validation: Use as a positive control antigen for validating anti-GGNBP2 antibodies in Western blot, ELISA, or immunofluorescence experiments.
• Structural studies: Supporting biophysical characterization techniques such as size-exclusion chromatography or native PAGE.

Important: This product is for research use only (RUO) and is not intended for diagnostic, therapeutic, or clinical use.

Troubleshooting and Best Practices

Consult the following guidance if unexpected results are encountered:

• Low activity or signal: Confirm that the protein has not undergone more than the recommended number of freeze-thaw cycles. Check that reconstitution buffer composition and pH are appropriate. Carrier protein (BSA) supplementation may improve stability at low concentrations.
• Precipitation or turbidity: If the reconstituted solution appears cloudy, centrifuge at 10,000 × g for 5 minutes at 4°C and use the supernatant. Precipitation may indicate buffer incompatibility or protein aggregation due to improper storage.
• Inconsistent results between lots: Always perform a lot-to-lot bridging experiment when switching between product lots. Verify concentration by BCA or Bradford assay in your own laboratory conditions.
• Non-specific binding in assays: Include appropriate blocking steps and negative controls. Titrate the protein concentration empirically for each new assay format.

For technical support, contact Aladdin Scientific customer service and reference SKU rp375071 and datasheet absea#PP-8805.

Frequently asked questions

What is the recommended reconstitution buffer for Recombinant Human GGNBP2 Protein?

The recommended reconstitution buffer and volume are specified in the product datasheet (absea#PP-8805). In general, sterile PBS (pH 7.4) supplemented with 0.1% BSA is commonly used for recombinant proteins to maintain stability. Always refer to the lot-specific datasheet for precise instructions.

How should Recombinant Human GGNBP2 Protein be stored to maintain stability?

The lyophilized protein should be stored at -20°C or -80°C upon receipt. Once reconstituted, aliquot the protein into single-use volumes and store at -80°C for long-term use. Avoid repeated freeze-thaw cycles, ideally limiting cycles to three or fewer, as this can lead to protein aggregation and loss of activity.

Is Recombinant Human GGNBP2 Protein suitable for in vivo or clinical use?

No. Recombinant Human GGNBP2 Protein (rp375071) is strictly designated for in vitro research use only (RUO). It has not been tested or validated for in vivo administration, diagnostic procedures, or any clinical or therapeutic applications.

What applications is Recombinant Human GGNBP2 Protein validated for?

Typical applications include protein–protein interaction studies, antibody validation (e.g., Western blot, ELISA), functional assays in cell-based models, and biophysical characterization. Please consult the product datasheet (absea#PP-8805) for the full list of validated applications and any application-specific notes.

How can I verify the quality of the reconstituted GGNBP2 protein before use?

Protein integrity can be assessed by SDS-PAGE under reducing and non-reducing conditions to confirm the expected molecular weight band and absence of significant degradation. Protein concentration should be measured using a BCA or Bradford assay. For functional verification, an appropriate binding or activity assay specific to GGNBP2 should be performed.

References

1. Aladdin Scientific. Recombinant Human GGNBP2 Protein, SKU rp375071. Product Datasheet absea#PP-8805.

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