Overview
Regulatory Factor Binding Protein 2 (RFBP2) is a nuclear protein that plays a crucial role in transcriptional regulation by interacting with specific DNA sequences and transcription factors. First identified in genomic studies, it has since been recognized as a modulator of multiple signaling pathways. Research indicates RFBP2 participates in cell differentiation processes and may influence disease states when dysregulated. Its expression patterns vary across tissues, with particularly high activity observed in rapidly proliferating cells. The protein contains characteristic binding domains that enable its interaction with both nucleic acids and partner proteins.
Physical and Chemical Properties
RFBP2 typically exists as a monomer with secondary structure dominated by alpha-helices and beta-sheets that form its functional domains. The protein demonstrates stability across a pH range of 6.0-8.5 but may degrade under extreme conditions. Its solubility depends on buffer composition, with optimal performance in Tris-based or phosphate-buffered solutions containing reducing agents. Analytical techniques like SDS-PAGE typically show RFBP2 migrating between 50-60 kDa, though post-translational modifications can cause mobility shifts.
Main Applications
In research settings, RFBP2 serves as a valuable tool for investigating gene regulatory networks. Scientists utilize recombinant RFBP2 in electromobility shift assays (EMSAs) to study DNA-protein interactions and transcription factor complexes. The protein has emerging diagnostic potential as a biomarker for certain cancers where its expression levels correlate with disease progression. Pharmaceutical research explores RFBP2 as a potential drug target, particularly for conditions involving transcriptional dysregulation such as autoimmune disorders and specific malignancies.
Safety and Storage
Standard biosafety level 1 precautions are sufficient when handling RFBP2 in laboratory settings. The protein does not require special containment but should be treated as potential irritant if in powdered form. For optimal preservation, aliquoted samples should be stored at -20°C or below in buffer solutions containing glycerol (20-50%) as cryoprotectant. Avoid repeated thawing and freezing, which can cause protein degradation and loss of functional activity over time.
B2B Procurement Guide
Research-grade RFBP2 is available through specialized biochemical suppliers and contract research organizations. Key procurement considerations include certificate of analysis details, endotoxin levels (<1 EU/μg), and batch-to-batch consistency guarantees. Larger quantities for industrial applications may require custom production through recombinant expression systems. Lead times for custom orders typically range 4-8 weeks. Some suppliers offer modified variants (tagged, labeled, or mutant forms) for specific experimental needs at premium pricing.
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