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| Description | FLGFVGQALNALLGKL-NH₂ (CAS: 2268718-85-8) is a 17-residue synthetic amphipathic antimicrobial peptide, C-terminally amidated, sequence FLGFVGQALNALLGKL-NH₂. Molecular formula C₈₀H₁₃₀N₂₀O₁₈, MW 1660.01 Da. This peptide is rich in hydrophobic residues such as leucine (Leu) and phenylalanine (Phe), with two N-terminal phenylalanines providing aromatic membrane anchors and a C-terminal lysine providing positive charge, forming a typical amphipathic alpha-helical structure. As an artificial short membrane-active peptide, it can be used to study the effects of hydrophobic residue arrangement, aromatic anchoring, and net charge on AMP membrane insertion and bactericidal activity. |
| Structure type | Linear 17-mer (C-amidated, amphipathic alpha-helical short peptide) |
| Solubility | Readily soluble in water, PBS, acetic acid |
| Storage | Powder -20°C, dry, protected from light |
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) |
| FLGFVGQALNALLGKL-NH₂ | Synthetic amidated 16-mer; FLGFVGQALNALLGKL amide | Antimicrobial peptide, membrane-active peptide, synthetic peptide, amphipathic helix, amidated peptide | Artificially designed C-terminal amidated 16-mer forming a typical amphipathic α-helix; hydrophobic face inserts into membranes to disrupt integrity, cationic face binds negatively charged bacterial membranes | C₈₄H₁₃₆N₁₈O₁₉ | 1714.04 | ~1715.2 | Free peptide | 16 |
Physicochemical Solubility & Storage Parameters
| Product Code | Appearance | Long-term Storage | Short-term Storage | Solution Stability | Solid Powder Stability |
| PEP-FLG16 | White powder | Store at -20°C, sealed, dry and protected from light. Aliquot for storage. | Stable for 1 month at 2–8°C in sealed dry condition; stable for shipping at ambient temperature. | Stable for 7 days at 4°C. Soluble in dilute acetic acid and acidic buffers. C-terminal amidation enhances protease resistance and membrane activity of the peptide. | Stable for 2 years at -20°C, dry and protected from light. |
Functional Description
| Product Code | Frontend Short Summary (for search list display) | Detailed Biological Function Description | Applicable Research Areas (comma-separated) | Targets / Pathways |
| PEP-FLG16 | Synthetic amidated 16-mer with membrane-active broad antibacterial activity | FLGFVGQALNALLGKL-NH₂ is a rationally designed C-terminal amidated 16-mer forming a typical amphipathic α-helix. The hydrophobic face inserts into cell membranes to disrupt the lipid bilayer, and the cationic face binds negatively charged bacterial outer membranes, with good bactericidal activity against Gram-positive bacteria. C-terminal amidation significantly improves in vivo stability and membrane activity. | Synthetic AMPs, membrane-active peptides, peptide structure design, amidation modification, antibacterial drug development | Cell membrane lipid bilayer; membrane insertion lysis; amidation stability gain |
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