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N-Formyl-Met-Leu-Phe (N-Formyl-MLF) (fMLF) is a synthetic peptide that acts as an agonist at formyl peptide receptors (FPR; Ki = 0.8 pM).

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 2 mg | $30 | In Stock | |
| 5 mg | $48 | In Stock | |
| 10 mg | $68 | In Stock | |
| 25 mg | $118 | In Stock | |
| 50 mg | $187 | In Stock | |
| 100 mg | $263 | In Stock | |
| 200 mg | $392 | In Stock |
| Description | N-Formyl-Met-Leu-Phe (N-Formyl-MLF) (fMLF) is a synthetic peptide that acts as an agonist at formyl peptide receptors (FPR; Ki = 0.8 pM). |
| In vitro | N-Formyl-Met-Leu-Phe receptor is associated with a Ni GTP regulatory protein, and N-Formyl-Met-Leu-Phe complex is important in the control of several neutrophil functions[1]. |
| In vivo | N-Formyl-Met-Leu-Phe(fMLP) promoted bone formation in zebrafish and rabbits, suggesting its physiological relevance in vivo[2]. |
| Animal Research | ebrafish (Danio rerio) embryos were collected from spontaneous spawnings reared at 28.5 ℃. Three days postfertilization (~1 day after hatching), feeding of the commercial powder for baby fish was started. Zebrafish embryos were stimulated with fMLP from 8 to 48 h postfertilization (hpf), washed, and raised at 28.5 ℃. At 5 days postfertilization (dpf), 20 zebrafish were stained with Alizarin Red for examination of the effect of fMLP on bone formation. Zebrafish were fixed in 4% paraformaldehyde for 12–18 h. Following fixation, fish were depigmented overnight in 1% KOH containing 3% H2O2 and immersed for 2 h in 0.5% KOH containing 0.05% Alizarin Red, pH 4.2. Alizarin-stained fish were then cleared again in 1% KOH and observed under a microscope[2]. |
| Synonyms | N-Formyl-MLF, fMLP |
| Molecular Weight | 437.55 |
| Formula | C21H31N3O5S |
| Cas No. | 59880-97-6 |
| Smiles | CSCC[C@H](NC=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](Cc1ccccc1)C(O)=O |
| Relative Density. | 1.198 g/cm3 (Predicted) |
| Sequence | Formyl-Met-Leu-Phe |
| Sequence Short | Formyl-MLF |
| Storage | keep away from moisture | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 82.5 mg/mL (188.55 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 3.3 mg/mL (7.54 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMSO
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