In the world of peptide research, f by FS Nielsen·2004·Cited by 14—ThePADREepitope (AKFVAAWTLKAAA) is bolded in black. In TNF4, thePADRE sequencewas inserted directly between Gly108and Ala109. In TNF5, the insertion was Read more ew synthetic constructs have garnered as much attention as the padre peptide sequence. As a user who frequently interacts with various synthetic compounds for laboratory study, I have found that understanding the structural integrity and the specific biochemical profile of this molecule is essential for anyone looking into immunological research models.
Defining the PADRE Peptide
The PADRE (Pan-DR-binding epitope) is a synthetic, 13-amino acid peptide that has become a staple in modern investigative workflows. Its primary appeal lies in its function as a universal peptidic epitope. Unlike naturally occurring sequences that may show restricted binding, the PADRE peptide was specifically engineered for promiscuous binding to multiple HLA class II DR alleles.
When I look at the technical specifications, the sequence: AKFVAAWTLKAAA is the gold standard for this molecule. This specific arrangement—Ala-Lys-Phe-Val-Ala-Ala-Trp-Thr-Leu-Lys-Ala-Ala-Ala—is often referenced in literature as a vital tool for those studying T-cell help.
Technical Specifications and Synthesis
For those involved in sourcing, it is important to verify the purity and chemical structure of the compound. The H-AKFVAAWTLKAAA-OH configuration is standard, and high-quality preparations typically boast a purity of >95% via HPLC/MS.
Key attributes I look for include:
* Molecular Weight: Ap Mice were immunized with HPV16 E749-57 andPADRE peptides mix formulated with IFA, or PADRE-Trx-E7 or PADRE-Trx-flank E7 formulated with AddaVax. Splenocytes Read more proximately 1347.61 g/mol.
* Formula: C65H102N16O15.
* Structure: It is a linear sequence, though some advanced designs incorporate modifications like D-alanine, L-cyclohexylalanine, and aminohexanoic acid to enhance stability or binding affinity.
Insights into the PADRE Sequence
The PADRE sequence (AKFVAAWTLKAAA) is widely utilized because it provides a co I-Ab | synthetic epitope PADRE | AKFVAAWTLKAA nsistent pan-DR epitope (PADRE) peptide framework. In my experience reviewing various protocols, the AKFVAAWTLKAA variant is sometimes discussed, but the 13-amino acid version remains the most frequent point of reference.
When researchers discuss pan-DR epitopes (PADRE) peptides, they are often highlighting how these molecules act as a bridge. For instance, I have noted studies where two copies of Aβ1–11 fused with the promiscuous nonself T cell epitope, PADRE were used to explore specific molecular interactions. This illustrates the versatility of the PADRE construct; it is not just a standalone molecule but a modular component that can be fused to other sequences, such as HA epitope 1 - HA epitope 2 - M epitope 9, to create comp MHC-I and MHC-II epitope peptides – lex, multi-epitope constructs.
Practical Observations
In laboratory settings, the peptide is often handled as a lyophilized powder. Whethe Sequence.AKFVAAWTLKAAA, Ala - Lys - Phe - Val - Ala - Ala - Trp - Thr - Leu - Lys - Ala - Ala - Ala. 4 Units in Stock. Ask a Question. 0.00. Add to Cart:.Read more r you are working with a PADRE peptides mix formulated Mice were immunized with HPV16 E749-57 andPADRE peptides mix formulated with IFA, or PADRE-Trx-E7 or PADRE-Trx-flank E7 formulated with AddaVax. Splenocytes Read more with IFA or exploring a pan HLA-DR epitope (PADRE) in a custom vaccine design, the stability of the 13 amino acid nonnatural pan DR epitope (PADRE) is a significant advantage.
The PADRE is a universal synthetic 13 amino acid peptide that continues to be a subject of fascination due to its ability to activate specific cellular responses. If you are examining the padre peptide, ensure that the documentation confirms the sequence: AKFVAAWTLKAAA precisely, as variations in the C-terminus or N-terminus can influence experimental outcomes.
Conclusion
Whether you are a seasoned researcher or just beginning to explore the utility of synthetic epitopes, the PADRE peptide offers a reliable, well-characterized scaffold. By focusing on the AKFVAAWTLKAAA sequence and adhering to rigorous handling standards, one can effectively utilize this epi-based tool to further investigate the complexities of immune recognition and peptide-MHC interactions. Always prioritize sourcing from vendors who provi Alzheimer's Disease Peptide Epitope Vaccine Reduces de clear HPLC/MS data to ensure your padre peptide meets the necessary criteria for your specific research goals.