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| Product name | CAS:997-20-6;Tetralysine |
| Sequence | KKKK |
| Three letter sequence | Lys-Lys-Lys-Lys |
| Peptide purity (HPLC, %) | 95%/99% |
| Molecular formula | C24H50N8O5 |
| Molecular weight (Da) | 530.7 |
Product Basic Information Table
| Product Standard English Name | Product Abbreviation / Alias | Function Tags (comma-separated) | Amino Acid Full Name Sequence | Molecular Formula | Exact Molecular Weight (Da) | Average Molecular Weight (Da) | Terminal Modification - N-terminus | Terminal Modification - C-terminus | Sequence Length (aa) |
| Tetralysine CAS 997-20-6 | #Tetralysine#, Lys4, Tetralysine peptide, Cationic oligopeptide, Polylysine delivery peptide | Cationic peptide, Cell adhesion, Gene delivery carrier, Nucleic acid binding peptide, Peptide transfection adjuvant, Membrane interaction research, Protein purification tag | Lys-Lys-Lys-Lys | C₂₄H₅₂N₈O₅ | 532.401 | 532.72 | Unmodified | Free carboxyl group | 4 |
Physicochemical Solubility & Storage Parameters
| Product Code | Appearance | Long-term Storage Conditions | Short-term Storage Conditions | Liquid Stability | Solid Powder Stability |
| PEP-TETLY001 | White powder | -20°C, sealed and aliquoted away from light, avoid repeated freeze-thaw | 2-8°C, use within 1 month, prepare fresh before experiment | Stable for 30 h at 4°C | Stable for 2 years at -20°C under dry dark condition |
Functional Description
| Product Code | Frontend Short Summary (for search list display) | Detailed Biological Function Description | Applicable Research Areas (comma-separated) | Target / Receptor |
| PEP-TETLY001 | Lys4 tetralysine, highly cationic short peptide with strong anionic nucleic acid binding, applied in gene delivery adjuvant, cell adhesion and membrane interaction mechanism research | Tetralysine is linear oligopeptide consisting of four L-lysine residues, with abundant primary amine groups on side chains and high positive charge density at physiological pH. It electrostatically binds negatively charged cargos including DNA, siRNA and oligonucleotides, neutralizes nucleic acid negative charge to facilitate cell membrane adsorption and intracellular delivery. It can coat plastic or glass surfaces to improve cell attachment performance. Widely used in non-viral gene vectors, peptide transfection enhancers, cell membrane-lipid interaction analysis, peptide-nucleic acid complex characterization, cell culture coating materials and ion-exchange control experiments for protein purification | Pharmaceutics, Molecular biology, Cell biology, Gene delivery, Biomaterials, Peptide biophysics, Molecular diagnostics | Cell membrane phospholipid bilayer, Nucleic acid phosphate backbone, Anionic cell membrane proteins |
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