Cat. No. 4751

FSLLRY-NH2 Phe-Ser-Leu-Leu-Arg-Tyr-NH2

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Biological Activity

Selective PAR2 peptide antagonist. Reverses taxol-induced mechanical allodynia, heat hyperalgesia and PKC activation in ICR mice. Blocks ERK activation and collagen production in isolated cardiac fibroblasts. Also reduces symptoms in a mouse model of dermatophyte-associated itch.

Technical Data


(Modifications: Tyr-6 = C-terminal amide)

Soluble to 1 mg/ml in water
Store at -20°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

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Andoh et al (2012) Involvement of serine protease and proteinase-activated receptor 2 in dermatophyte-associated itch in mice. J.Pharmacol.Exp.Ther. 343 91. PMID: 22761302.

Chen et al (2011) Proteinase-activated receptor 2 sensitizes transient receptor potential vanilloid 1, transient receptor potential vanilloid 4, and transient receptor potential ankyrin 1 in paclitaxel-induced neuropathic pain. Neuroscience 193 440. PMID: 21763756.

McLarty et al (2011) Tryptase/protease-activated receptor 2 interactions induce selective mitogen-activated protein kinase signaling and collagen synthesis by cardiac fibroblasts. Hypertension 58 264. PMID: 21730297.

If you know of a relevant reference for this product please let us know.

Citations are publications that use Tocris products. Selected citations for FSLLRY-NH2 include:

Peng et al (2016) Calcium and adenosine triphosphate control of cellular pathology: asparaginase-induced pancreatitis elicited via protease-activated receptor 2 Phil. Trans. R. Soc. B 371 1700. PMID: 27377732.

White et al (2015) A brief exposure to tryptase or thrombin potentiates fibrocyte differentiation in the presence of serum or serum amyloid p. Cell Death Dis 194 142. PMID: 25429068.

Bao et al (2014) PAR2-mediated upregulation of BDNF contributes to central sensitization in bone cancer pain. Mol Pain 10 28. PMID: 24886294.

Tripathi et al (2014) Protease-activated receptor 2 (PAR2) is upregulated by Acanthamoeba plasminogen activator (aPA) and induces proinflammatory cytokine in human corneal epithelial cells. Invest Ophthalmol Vis Sci 55 3912. PMID: 24876278.

Do you know of a great paper that uses FSLLRY-NH2 from Tocris? If so please let us know.show all ▼show less ▲

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Keywords: FSLLRY-NH2, supplier, PAR2, protease, activated, receptors, selective, antagonists, Tocris Bioscience, Protease-Activated Receptor Antagonist products

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