yGsy2p-IN-H23 is a potent, first-in-class inhibitor specifically designed to target yeast glycogen synthase 2 (yGsy2p). It demonstrates an IC50 value of 875 μM for human glycogen synthase 1 (hGYS1). This compound binds precisely within the uridine diphosphate glucose (UDPG) binding pocket of yGsy2p. Its utilization in research primarily focuses on studying glycogen storage diseases (GSDs).
Cytochalasin B is a mycotoxin binding to the barbed end of actin filaments. It can disrupt the formation of actin polymers (Kd: 1.4-2.2 nM for F-actin).