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| Description | Influenza NP residues 383–391 (canonical HLA-B8-restricted SRYWAIRTR), a common virus-specific memory CD8+ epitope in healthy adults; used for cellular-immunity assessment. |
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) |
| CEF8, Influenza Virus NP (383-391) Peptide | Flu NP(383-391); SRYWAIRTR; HLA-B*2705 CTL epitope; CEF pool #8 | Viral immunology, influenza virus, nucleoprotein NP, HLA-B*2705-restricted CTL epitope, CEF peptide pool | SRYWAIRTR, linear free-acid 9-mer (N-term H, C-term OH) | C54H85N19O13 | 1207.66 | 1208.38 | TFA salt (per supplier COA) | 9 |
Physicochemical Solubility & Storage Parameters
| Product Code | Appearance | Long-term Storage | Short-term Storage | Solution Stability | Solid Powder Stability |
| PEP-CEF8-01 | White to off-white powder | Store at -20°C, strictly protected from light, dry and sealed | Short-term storage at 2-8°C, protected from light | Basic peptide, readily soluble in water/slightly acidic buffer; light-sensitive (Trp/Tyr), prepare fresh, avoid repeated freeze-thaw | Stable as light-protected powder |
Functional Description
| Product Code | Frontend Short Summary | Detailed Biological Function Description | Applicable Research Areas (comma-separated) | Targets / Pathways |
| PEP-CEF8-01 | CEF pool member #8: the 9-mer SRYWAIRTR from influenza A virus nucleoprotein NP residues 383-391, a canonical HLA-B*2705-restricted CTL epitope linked to CTL immune escape. | CEF8 corresponds to residues 383-391 (SRYWAIRTR) of the influenza A virus nucleoprotein (NP) and is an HLA-B*2705-restricted CD8+ cytotoxic T-lymphocyte epitope included in the CEF (CMV/EBV/influenza) positive-control peptide pool. Mutations within or near this epitope have been shown to alter the human influenza A virus-specific CTL response and contribute to viral escape from CTL immune surveillance (J Virol 2004;78:5216-22). It is used to study cross-protective influenza T-cell immunity, for HLA-B27-restricted CTL assays and as a CEF-pool positive control. | Viral immunology, influenza vaccines, cross-protective T cells, CTL epitopes, immune-monitoring positive control | Influenza NP(383-391) epitope presented by HLA-B*2705; influenza-specific CD8+ T cells |
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