N-Formylmethionine Leucyl-Phenylalanine

**Definition:** A formylated tripeptide originally isolated from bacterial filtrates that is positively chemotactic to polymorphonuclear leucocytes, and causes them to release lysosomal enzymes and become metabolically activated.

**Tree numbers:** - D02.886.030.676.450.440 - D12.125.072.050.685.445 - D12.125.142.666.500 - D12.125.166.676.450.440 - D12.644.456.400 - D23.125.685

**Synonyms:** - Formylmet-Leu-Phe - Formylmethionylleucylphenylalanine - N-Formyl-Methionyl-Leucyl-Phenylalanine - Formylmethionyl-Leucyl-Phenylalanine