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| Description | Influenza NP residues 44–52, an HLA-restricted CD8+ T epitope; used for influenza-specific CTL responses, memory T cells and universal-vaccine epitope research. |
Product Basic Information Table
| Product Standard English Name | Product Abbreviation / Alias | Function Tags (comma-separated) | Core Structure | Molecular Formula | Exact Mass (Da) | Average MW (Da) | Salt Form | Length (aa) |
| Influenza A virus NP (44-52) CTL epitope peptide (HLA-A*01:01-restricted) | NP44-52, CTELKLSDY, CEF25, influenza NP HLA-A*01 epitope | T-cell epitope, MHC class I, CD8 T cell, influenza, viral epitope, HLA-A*01 | CTELKLSDY (H-Cys-Thr-Glu-Leu-Lys-Leu-Ser-Asp-Tyr-OH, linear 9-mer, free N-terminal amino / free C-terminal carboxyl) | C46H74N10O17S | 1070.50 | 1071.21 | Free acid (per published formula) | 9 |
Physicochemical Solubility & Storage Parameters
| Product Code | Appearance | Long-term Storage | Short-term Storage | Solution Stability | Solid Powder Stability |
| PEP-NP44-01 | white to off-white (AnaSpec/Eurogentec, purity ≥95% HPLC) | Store frozen below -20 C, protected from light, dry and tightly sealed | Store at 4 C sealed, dry and light-protected, use within 2-4 weeks; after reconstitution aliquot and store at -20 C, avoid repeated freeze-thaw | Freely soluble in water (polar T/E/K/D residues, ~33% hydrophobic); contains 1 Cys (oxidation-prone; avoid oxidizing/reducing conditions) and 1 Tyr (light-sensitive); protect from light, deoxygenate and use promptly after reconstitution | powder stable long-term at -20 C when dry, light-protected and sealed; keep moisture- and light-protected; Cys is oxidation-sensitive, avoid prolonged air exposure |
Functional Description
| Product Code | Frontend Short Summary | Detailed Biological Function Description | Applicable Research Areas (comma-separated) | Targets / Receptors |
| PEP-NP44-01 | The 9-mer CD8 T-cell epitope CTELKLSDY from influenza A virus nucleoprotein residues 44-52, restricted by HLA-A*01:01. | NP(44-52), sequence CTELKLSDY, spans residues 44-52 of influenza A virus nucleoprotein and is a canonical HLA-A*01:01-restricted CD8+ T-cell epitope. It is one of the most widely used positive-control epitopes for studies of human influenza CTL responses, vaccine evaluation, T-cell epitope mapping, and MHC tetramer production. | Influenza immunology, CD8 T cell, MHC class I epitope, vaccine evaluation, viral immunology | HLA-A*01:01 (human MHC class I) |
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