Overview
The p50 Affinity Peptide for κB Subunit is a biologically active peptide designed to bind specifically to the p50 subunit of NF-κB, a critical transcription factor in cellular signaling. NF-κB plays a central role in regulating immune responses, inflammation, and cell survival. This peptide is synthesized to mimic the natural binding sequence of κB sites, enabling researchers to study NF-κB dynamics and develop therapeutic inhibitors. Its applications span molecular biology, immunology, and drug discovery, particularly in contexts where NF-κB dysregulation is implicated, such as chronic inflammation and cancer. The peptide's specificity and reproducibility make it a preferred tool for in vitro and in vivo studies.
Physical and Chemical Properties
The p50 Affinity Peptide is typically provided as a lyophilized powder, ensuring stability and ease of reconstitution. Its molecular weight depends on the specific amino acid sequence but generally falls within the 1-3 kDa range. The peptide is soluble in aqueous buffers, facilitating its use in experimental assays. Key properties include its high binding affinity for the p50 subunit and resistance to degradation under proper storage conditions. The peptide's performance is sequence-dependent, with modifications possible to enhance stability or binding characteristics. Analytical techniques such as HPLC and mass spectrometry are used to confirm purity and structural integrity.
Main Applications
This peptide is primarily used in research settings to investigate NF-κB signaling pathways. It serves as a competitive inhibitor in binding assays, helping to elucidate interactions between NF-κB and DNA or other proteins. Additionally, it is employed in high-throughput screening to identify potential NF-κB inhibitors for therapeutic development. Other applications include studying inflammatory diseases, cancer progression, and immune system regulation. The peptide's ability to disrupt NF-κB activity makes it valuable for probing the molecular mechanisms underlying these conditions. Custom variants may be designed for specific experimental needs, such as fluorescence labeling or biotinylation.
Safety and Storage
Proper handling of the p50 Affinity Peptide is essential to ensure safety and maintain its efficacy. Use gloves and protective eyewear when handling, and work in a well-ventilated area. The peptide should be stored at -20°C in a desiccated environment to prevent moisture absorption and degradation. Reconstituted solutions should be aliquoted to avoid repeated freeze-thaw cycles, which can reduce peptide activity. Dispose of unused material according to local regulations for chemical waste. Always refer to the safety data sheet (SDS) for specific handling and disposal guidelines.
B2B Procurement Guide
When procuring the p50 Affinity Peptide, prioritize suppliers with a proven track record in peptide synthesis. Key considerations include purity (>95%), sequence verification, and documented biological activity. Request certificates of analysis (CoA) to ensure quality. Bulk purchasing may offer cost savings, but confirm storage and shelf-life requirements. Lead times can vary depending on customization needs, such as modified sequences or labeling. Establish a reliable supply chain to avoid disruptions in research activities. For reference, prices typically range from $200 to $500 per mg, though bulk orders may qualify for discounts.
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