h 1152

H-1152 是一种膜通透的选择性ROCK 抑制剂，Ki 为 1.6 nM，对ROCK2的IC50为 12 nM。

H-1152 dihydrochloride (H-1152 2HCl) 是 Rho 相关蛋白激酶 (ROCK) 的特异性抑制剂，IC50 为 12 nM，Ki 为 1.6 nM。 H-1152 dihydrochloride 抑制 PKA、PKC、PKG、Aurora A 和 CaMKII，IC50 值分别为 3.03 μM、5.68 μM、0.360 μM、0.745 μM 和 0.180 μM。

Two Rho-associated kinases (ROCK), ROCK-I and ROCK-II, act downstream of the G protein Rho to regulate cytoskeletal stability. The ROCKs play important roles in diverse cellular functions including cell adhesion and proliferation, smooth muscle contraction, and stem cell renewal. Glycyl-H-1152 is a selective and potent ROCK inhibitor (IC50 = 11.8 nM for ROCK-II). It is a glycylated isoquinoline compound derived from the therapeutically-important ROCK inhibitor HA-1077 (Fasudil) and exhibits better specificity. Thus, it poorly inhibits Ca2+/calmodulin-dependent kinase type II, protein kinase (PK) G, and Aurora A (IC50 = 2.57, 2.35, and 3.26 μM, respectively) as well as PKA or PKC (IC50 ≥ 10 μM for each). The potency of Glycyl-H-1152 is superior to that of other ROCK inhibitors, including Y-27632 (Ki = 220 nM) and HA-1077 (IC50 = 158 nM).