phe

[D-p-Cl-Phe6,Leu17]-VIP acetate is a competitive and selective antagonist of vasoactive intestinal peptide (VIP) receptor (IC50 = 125.8 nM).

Phe-Met-Arg-Phe Like Peptide acetate (Pqdpflrfamide acetate) is a FMRF-like peptide from visceral and somatic muscles of the snail Helix aspersa. FMRF (Phe-Met-Arg-Phe) is a neuropeptide peptide consisting of 4 amino acid residues.

Boc-Gly-Gly-Phe-Gly-OH acetate (GGFG acetate) is a self-assembly of N- and C-protected tetrapeptide.

N-Formyl-Met-Leu-Phe-Lys (fMLFK) is a peptide that acts as a potent and selective agonist of FPR1, with EC50s of 3.5 nM for FPR1, 6.7 μM for FPR2, and 0.88 μM for FPR2-D2817.32G. This chemotactic peptide binds specifically to receptors on leukocyte membranes and its uptake can contribute to the quantitative assessment of neutrophils in localized inflammatory processes, independent of associated edema formation or microcirculatory compromise.

[D-Phe12,Leu14]-Bombesin acetate inhibits bombesin-stimulated secretion.

Sar-[D-Phe8]-des-Arg9-Bradykinin acetate is a potent and selective bradykinin B1 receptor agonist (EC50 = 9.02 nM in rabbit aorta) that is resistant to aminopeptidase, kininase I and II (ACE) and neutral endopeptidase cleavage. Exhibits hypotensive and angiogenic activity in vivo.

[D-Phe12]-Bombesin acetate inhibits bombesin-stimulated secretion.

Arg-Gly-Asp-D-Phe-Val (TFA) has anti-tumor activity and is an inhibitor of integrin αvβ3.

S 2238 is a chromogenic substrate for thrombin that is used in amidolytic assay.

Cyclo(L-Phe-L-Val) is a metabolite of the sponge bacterium Pseudoalteromonas sp. NJ6-3-1, capable of autoinducing the production of antibacterial substances active against S. aureus at low cell density. It induces neurite outgrowth and branching of chick cortical neurons in vitro at concentrations of 16 and 32 μM, increases phosphorylation of the PI3K substrate Akt, and this induction can be blocked by the PI3K inhibitor LY294002. Additionally, it enhances axon sprouting of calcitonin gene-related protein positive (CGRP+) primary afferents in the spinal cord post-crush injury and of serotonin neurons in the uninjured spinal cord. Cyclo(L-Phe-L-Val) is also a bitter taste component of cocoa and roasted coffee.

(Rac)-Z-Phe-Phe-FMK (Cathepsin L-IN-2) is a cathepsin L inhibitor that inhibits the tendency of β-amyloid to induce apoptotic changes .

Mc-Gly-Gly-Phe-Gly-PAB-OH is a cleavable linker used for the synthesis of antibody-drug conjugates (ADCs).

H-D-Phe-Pip-Arg-pNA dihydrochloride (S-2238 dihydrochloride), a chromogenic substrate, mimics the N-terminal fragment of the A alpha chain of fibrinogen, the native substrate of thrombin. Specifically designed for thrombin detection, it is employed for quantifying antithrombin-heparin cofactor (AT-III) and is characterized by its sensitivity, accuracy, and ease of implementation.

{Boc}-Phe-Leu-Phe-Leu-Phe ({Boc}-FLFLF) is a selective antagonist of the formyl peptide receptor (FPR) family, effectively inhibiting receptor activity in response to formyl peptides.

N-CBZ-Phe-Arg-AMC (Z-FR-AMC) is a substrate for serine proteases, including cathepsins, kallikrein, and plasmin. The substrate exhibits absorption/emission at 330/390 nm (weak fluorescence), while the end product (AMC) shows absorption/emission at 342/441 nm (strong fluorescence).

N-CBZ-Phe-Arg-AMC hydrochloride (Z-Phe-Arg-Amc HCl) is a substrate for catS protease. CatS protease is an important member of the cysteine protease family and is a lysosomal protease. It is expressed in many inflammatory processes and autoimmune diseases and can be used to assess the activity of lysosomal proteases.

Phe-Met-Arg-Phe-like peptide, derived from the visceral and somatic muscles of the snail Helix aspersa, is a neuropeptide known as FMRF (Phe-Met-Arg-Phe). This peptide comprises four amino acid residues[1].

Boc-Gly-Gly-Phe-Gly-OH is a self-assembling tetrapeptide with N- and C-protection.

N-Formyl-Nle-Leu-Phe-Nle-Tyr-Lys TFA (For-Nle-Leu-Phe-Nle-Tyr-Lys-OH (TFA)) (For-Nle-Leu-Phe-Nle-Tyr-Lys-OH TFA) is a formyl peptide receptor (FPR) agonist and a potent chemoattractant for human neutrophils, with its radioiodinated form retaining full biological activity.

N-Boc-Phe-Leu-Phe-Leu-Phe (Boc-FLFLF) is a formyl peptide receptor 1 (FPR1) antagonist that increases pain effects and inhibits the antinociceptive activity of annexin. Boc-FLFLF is extensively used in FPR research.

Phe-met-arg-phe amide trifluoroacetate is an activator of K+ current with an ED50 of 23nm on the fundus nerve.

Phe-Met-Arg-Phe, amide dose-dependently (ED50=23 nM) activates a K+ current in peptidergic caudodorsal neurons and appears to localize with neuropeptide Y in some brain regions.

Phe-Met-Arg-Phe, amide acetate, activates a K+ current in peptidergic caudodorsal neurons dose-dependently (ED50=23 nM) and appears to localize with neuropeptide Y in some brain regions.

Highly potent and selective nociceptin/orphanin FQ receptor (OP4) agonist peptide (pKi = 10.68; pEC50 = 9.80). Displays > 8000-fold selectivity over δ, κ, and μ opioid receptors and has relatively long lasting pronociceptive, hypotensive, negative inotrop