PL-3994   Click here for help

GtoPdb Ligand ID: 9067

Comment: PL-3994 is a natriuretic peptide receptor-A (NPR-A) agonist, with potential as a bronchodilating therapeutic. It is a cyclo-peptide with sequence Hept-cyclo(Cys-His-Phe-d-Ala-Gly-Arg-d-Nle-Asp-Arg-Ile-Ser-Cys)-Tyr-[Arg mimetic]-NH2 [1]. This peptide benefits from being resistant to enzymatic degradation by neutral endopeptidase (a.k.a. NEP or neprilysin), the metabolic enzyme of endogenous natriuretic peptides.
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Bioactivity Comments
PL-3994 is inactive vs. NPR-B [2].
Selectivity at catalytic receptors
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
Guanylyl cyclase-A Primary target of this compound Hs Agonist Agonist 9.0 pKi - 2
pKi 9.0 (Ki 1x10-9 M) [2]
natriuretic peptide receptor 3 Hs Agonist Agonist 8.1 pKi - 2
pKi 8.1 (Ki 7x10-9 M) [2]
Guanylyl cyclase-A Rn Agonist Agonist 8.0 pKi - 2
pKi 8.0 (Ki 1x10-8 M) [2]