Abz-Ala-Pro-Glu-Glu-Ile-Met-Arg-Arg-Gln-EDDnp is a fluorescence-quenched peptide substrate for human neutrophil elastase (kcat/Km = 531 mM-1s-1). Enzymatic peptide hydrolysis disrupts the Abz:EDDnp donor-acceptor pair allowing fluorescence measurement of Abz (ex = 320 nm; em = 420 nm).
Abz-Val-Ala-Asp-Nva-Arg-Asp-Arg-Gln-EDDnp is a fluorescence-quenched peptide substrate for human proteinase 3 (kcat/Km = 1,570 mM-1s-1). Enzymatic peptide hydrolysis disrupts the Abz:EDDnp donor-acceptor pair allowing fluorescence measurement of Abz (ex = 320 nm; em = 420 nm).
An endogenous ligand for the ghrelin receptor (GHS-R1a), produced by alternative splicing of the rat ghrelin gene. Potently induces Ca2+ release in cells expressing ghrelin receptors (EC50 = 2.4 nM) and stimulates GH release in vivo.