MEN 11270

Cat. No. 3978

MEN 11270 D-Arg-Arg-Pro-Hyp-Gly-Thi-cyclo(7γ-10α)-(Dab-D-Tic-Oic-Arg)

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Biological Activity

Peptide antagonist of the B2 bradykinin receptor (pKi = 10.3); conformationally constrained cyclized analog of HOE 140 (Cat. No. 3014). Blocks hypotension and bronchoconstriction in vivo. Displays selectivity for B2 over 29 other receptors and ion channels (pIC50 < 5.5).

Technical Data


(Modifications: Arg-1 = D-Arg, X-1 = Hyp, X-2 = Thi, X-3 = Dab, X-4 = D-Tic, X-5 = Oic, cyclized 7γ - 10α)

Soluble to 1 mg/ml in 30% acetonitrile / 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

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet


Meini et al (1999) MEN 11270, a novel selective constrained peptide antagonist with high affinity at the human B2 kinin receptor. J.Pharmacol.Exp.Ther. 289 1250. PMID: 10336513.

Tramontana et al (2001) Differences between peptide and nonpeptide B2 bradykinin receptor antagonists in blocking bronchoconstriction and hypotension induced by bradykinin in anesthetized guinea pigs J.Pharmacol.Exp.Ther. 296 1051. PMID: 11181940.

Cucchi et al (2002) Interaction of linear and cyclic peptide antagonists at the human B(2) kinin receptor. Peptides 23 1457. PMID: 12182947.

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

View Related Products by Target

Keywords: MEN 11270, supplier, MEN11270, analog, icatibant, HOE, 140, HOE140, b2, bradykinin, receptor, antagonist

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