PKG Substrate is a selective substrate for cGMP-dependent protein kinase (PKG), showing a strong preference for PKG Iα (Km = 59 µM) over PKG II (Km = 305 µM).
Competitive inhibitor of cGMP-dependent protein kinase (PKG); analog of a substrate peptide corresponding to a phosphorylation site of histone H2B. Competes with synthetic substrates (Ki = 86 mM) but does not inhibit phosphorylation of intact histones by