[Pro9]-substance P ([Pro9]-SP) possesses has very good affinity for NK-1 binding sites and that, in contrast to substance P, it interacts selectively with these sites. [Pro9]-SP had neither agonist nor antagonist properties on NK-2 and NK-3 receptors. Indeed, it did not stimulate phosphoinositide turnover on the hamster urinary bladder (NK-2 assay) and was devoid of activity on the contraction of the rabbit pulmonary artery (NK-2 assay) and of the rat portal vein (NK-3 assay). As a result of its high selectivity, [Pro9]-SP thus appears an excellent tool for investigating the functional properties of NK-1 receptors.
Formula
C66H102N18O13S
M.W.
1387.69
Cas
104486-69-3
Purity
> 95%
Storage
Store at -20°C. Keep tightly closed.
* For Non-Clinical Research Use Only *
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