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| Product name CAS:159147-88-3 | Antioxidant peptide A |
| Sequence | Pro‑His‑Cys‑Lys‑Arg‑Met |
| Three letter sequence | H‑Pro‑His‑Cys‑Lys‑Arg‑Met‑OH |
| Peptide purity (HPLC, %) | 95%/98%/99% |
| Molecular formula | $\mathbf{C_{31}H_{54}N_{12}O_7S_2}$ |
| Molecular weight (Da) | 770.97 |
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) |
| Antioxidant peptide A | Antioxidant peptide A; CAS 159147-88-3; H-Pro-His-Cys-Lys-Arg-Met-OH; Pep-A | Antioxidant, Free radical scavenging, Redox regulation, Cytoprotection, Non-cytotoxic | Proline-Histidine-Cysteine-Lysine-Arginine-Methionine | C₃₁H₅₄N₁₂O₇S₂ | 770.37 | 770.97 | Free amine, unmodified | Free carboxyl, unmodified | 6 |
Physicochemical Solubility & Storage Parameters
| Product Code | Appearance | Long-term Storage Conditions | Short-term Storage Conditions | Liquid Stability | Solid Powder Stability |
| PEP-ANT001 | White powder | Store at -20℃, protected from light, sealed and dry, aliquoted; avoid repeated freeze-thaw cycles | Powder can be stored short-term at 2-8℃ sealed and protected from light; aqueous solutions are recommended to be prepared fresh before use, and can be stored for 1 month in aliquots at -20℃ | Stable for 72 h at 4℃ | Stable for 3 years at -20℃ |
Functional Description
| Product Code | Frontend Short Summary (for search list display) | Detailed Biological Function Description | Applicable Research Areas (comma-separated) | Target / Receptor |
| PEP-ANT001 | Short antioxidant peptide with aromatic and sulfur-containing amino acids; potent free radical scavenging activity; regulates cellular redox balance; no obvious cytotoxicity | Antioxidant peptide A (sequence: Pro-His-Cys-Lys-Arg-Met) is a functional short peptide containing aromatic histidine and sulfur-containing cysteine and methionine residues. Its side-chain groups confer potent free radical scavenging capacity. This peptide reduces intracellular reactive oxygen species (ROS) levels by upregulating the activity of antioxidant enzymes such as superoxide dismutase (SOD), thereby maintaining intracellular redox homeostasis. *In vitro* studies confirm that SOD activity increases by 1.79-fold at a concentration of 100 μM. Cell viability assays show no significant toxicity to Y79 retinoblastoma cells or normal cells after 48 h of continuous treatment, with favorable biosafety. | Oxidative stress research, Tumor biology, Antioxidant drug development, Cell biology, Peptide functional research | ROS signaling pathway, Superoxide dismutase (SOD), Cellular redox system |
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