N-Formyl-Met-Leu-Phe
SIGMA/F3506 - ≥97% (HPLC)
Synonym: Chemotactic peptide; N-Formyl-L-methionyl-L-leucyl-L-phenylalanine; fMLF; fMLP (misnomer but widely used)
CAS Number: 59880-97-6
Empirical Formula (Hill Notation): C21H31N3O5S
Molecular Weight: 437.55
MDL Number: MFCD00036780
Linear Formula: C21H31N3O5S
Product Type: Chemical
| assay | ≥97% (HPLC) |
| form | powder |
| InChI | 1S/C21H31N3O5S/c1-14(2)11 |
| InChI key | PRQROPMIIGLWRP-BZSNNMDCSA |
| mol wt | 437.55 |
| Quality Level | 100 ![]() |
| SMILES string | CSCC[C@H](NC=O)C(=O)N[C@@ |
| solubility | acetic acid: 20 mg/mL, clear, colorless |
| storage condition | (Keep container tightly closed in a dry and well-ventilated place) |
| storage temp. | −20°C |
| technique(s) | activity assay: suitable |
| Amino Acid Sequence: | NFor-Met-Leu-Phe |
| Application: | N-Formyl-Met-Leu-Phe has been used for: • creating gradients in Zigmond chamber chemotaxis assay performed on neutrophils • neutrophil chemotaxis assay • determination of the involvement of MAPK-activating protein kinase-2 (MAPKAPK-2) and/or p38, in the signaling pathway of human polymorphonuclear leukocytes (PMNs) stimulated by N-Formyl-Met-Leu-Phe. |
| Biochem/physiol Actions: | N-Formyl-Met-Leu-Phe induced chemotaxis in phosphoinositide 3-kinase γ (PI3K)γ-/- neutrophils, and promotes adhesion, polymerization of F-actin, Fcγ receptor-mediated phagocytosis and intracellular Ca2+ release. It acts as an inflammatory agent and activates polymorphonuclear leukocytes (PMNs) without the formation of 5-hydroxyicosatetraenoic acid (5-HETE) and leukotriene B4 (LTB4). Its effects on neutrophils and the inhibition of adenylate cyclase are inhibited by pertussis toxin. |
| Biochem/physiol Actions: | Potent chemotactic peptide. Induces a metabolic burst in macrophages accompanied by an increase in respiratory rate, secretion of lysosomal enzymes, and production of superoxide anion. |
| Biochem/physiol Actions: | Potent inducer of leucocyte chemotaxis and macrophage activator. Receptors that bind formylpeptides are found on phagocytic neutrophils and have recently been identified on cells of the intestinal mucosa. |
| General description: | N-Formyl-Met-Leu-Phe is a chemotactic peptide, which functions on polymorphonuclear leukocytes (PMN), neutrophils etc. Research area: Cell signaling |
| Packaging: | 5, 10 mg in glass insert |
| Packaging: | 50, 100, 500 mg in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥97% (HPLC) |
| Storage Temp. | −20°C |
| UNSPSC | 12352200 |

