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F3506

Sigma-Aldrich

N-Formyl-Met-Leu-Phe

≥97% (HPLC)

Synonym(s):

Chemotactic peptide, N-Formyl-L-methionyl-L-leucyl-L-phenylalanine, fMLF, fMLP (misnomer but widely used)

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About This Item

Empirical Formula (Hill Notation):
C21H31N3O5S
CAS Number:
59880-97-6
Molecular Weight:
437.55
Beilstein:
2315783
MDL number:
MFCD00036780
UNSPSC Code:
12352200
PubChem Substance ID:
24894846
NACRES:
NA.32

Assay

≥97% (HPLC)

form

powder

mol wt

437.55

storage condition

(Keep container tightly closed in a dry and well-ventilated place)

technique(s)

activity assay: suitable

solubility

acetic acid: 20 mg/mL, clear, colorless

storage temp.

−20°C

SMILES string

CSCC[C@H](NC=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](Cc1ccccc1)C(O)=O

InChI

1S/C21H31N3O5S/c1-14(2)11-17(23-19(26)16(22-13-25)9-10-30-3)20(27)24-18(21(28)29)12-15-7-5-4-6-8-15/h4-8,13-14,16-18H,9-12H2,1-3H3,(H,22,25)(H,23,26)(H,24,27)(H,28,29)/t16-,17-,18-/m0/s1

InChI key

PRQROPMIIGLWRP-BZSNNMDCSA-N

Gene Information

human ... FPR1(2357)

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Amino Acid Sequence

NFor-Met-Leu-Phe

General description

N-Formyl-Met-Leu-Phe is a chemotactic peptide, which functions on polymorphonuclear leukocytes (PMN), neutrophils etc.

Research area: Cell signaling

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.
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.
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.

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

F3506-5MG:
F3506-500MG:
F3506-50MG:
F3506-BULK:
F3506-VAR:
F3506-10MG:
F3506-100MG:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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P M Lad et al.
Proceedings of the National Academy of Sciences of the United States of America, 82(3), 869-873 (1985-02-01)
Pertussis toxin inhibits the N-formyl-Met-Leu-Phe (fMet-Leu-Phe) mediated human neutrophil functions of enzyme release, superoxide generation, aggregation, and chemotaxis. As pertussis toxin modifies the GTP binding receptor-regulatory protein "Ni," the association of the fMet-Leu-Phe receptor with such a protein was further
Carlos José Correia Santana et al.
Biomolecules, 10(5) (2020-05-24)
In recent years, the number of new antimicrobial drugs launched on the market has decreased considerably even though there has been an increase in the number of resistant microbial strains. Thus, antimicrobial resistance has become a serious public health problem.
R M Clancy et al.
Proceedings of the National Academy of Sciences of the United States of America, 80(23), 7200-7204 (1983-12-01)
Release of arachidonic acid by the membrane phospholipase and metabolism by the 5-lipoxygenase pathway was examined in human polymorphonuclear leukocytes (PMNs). The 5-lipoxygenase pathway is activated when PMNs are given arachidonic acid in ethanol and there is extensive metabolism to
Ildefonso M De la Fuente et al.
Nature communications, 10(1), 3690-3690 (2019-08-17)
Associative memory is the main type of learning by which complex organisms endowed with evolved nervous systems respond efficiently to certain environmental stimuli. It has been found in different multicellular species, from cephalopods to humans, but never in individual cells.
E Krump et al.
The Journal of biological chemistry, 272(2), 937-944 (1997-01-10)
Activation of polymorphonuclear leukocytes (PMN) by chemotactic peptides initiates a series of functional responses that serve to eliminate pathogens. The intermediate steps that link engagement of the chemoattractant receptor to the microbicidal responses involve protein kinases that have yet to
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