Selective and competitive urotensin-II (UT) receptor antagonist (pKB = 8.3). Blocks hU-II induced contractions in thoracic aorta ex vivo. Exhibits no effect on noradrenaline or endothelin 1-induced contraction or on acetylcholine-induced relaxation. Behaves as a partial agonist in a calcium mobilization assay (in CHO cells expressing hUT receptors).
|Sequence||DXFWXYCV(Modifications: X-2 = Pen, X-5 = Orn, Trp-4 = D-Trp, Disulfide bridge: 2-7)|
|Storage||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.
|Solubility||Soluble to 2 mg/ml in water|
Preparing Stock Solutions
The following data is based on the product molecular weight 1075.26. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||0.93 mL||4.65 mL||9.3 mL|
|5 mM||0.19 mL||0.93 mL||1.86 mL|
|10 mM||0.09 mL||0.47 mL||0.93 mL|
|50 mM||0.02 mL||0.09 mL||0.19 mL|
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.
References are publications that support the products' biological activity.
Patacchini et al (2003) Urantide: an ultrapotent urotensin II antagonist peptide in the rat aorta. Br.J.Pharmacol. 140 1155 PMID: 14645137
Carotenuto et al (2014) Lead optimization of P5U and urantide: discovery of novel potent ligands at the urotensin-II receptor. J.Med.Chem. 57 5965 PMID: 24992374
If you know of a relevant reference for Urantide, please let us know.
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Keywords: Selective competitive urotensin II antagonists [Pen5,DTrp7,Orn8]hU-II(4-11) Urotensin-II Receptors
Citations for Urantide
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