DPPI 1c hydrochloride is an inhibitor of dipeptidyl peptidase IV (IC50 = 104 nM) that shows selectivity over enzymes with DPP-like activity (IC50 > 30 μM).
Phosphatidylinositol-(4,5)-P2(1,2-dipalmitoyl), a synthetic analog of natural phosphatidylinositol (PtdIns) with C16:0 fatty acids at the sn-1 and sn-2 positions, maintains the inositol and diacylglycerol (DAG) stereochemistry of its natural counterpart. Although phosphatidylinositol phosphates constitute a minor fraction of total membrane phospholipids, they are pivotal in initiating and propagating cellular signals. This compound mirrors the activity of the natural phosphatidylinositol produced by PtdIns-4-phosphate 5-kinase's action on PtdIns-(4)-P1. Its hydrolysis by phosphoinositide (PI)-specific phospholipase C yields inositol triphosphate (IP3) and DAG, crucial secondary messengers in a complex signal transduction pathway.
Latrunculin A is a toxin isolated from the red sea sponge Latrunculia magnifica. Latrunculin A binds to actin monomers and it also inhibits polymerization of actin (Kds: 0.1, 0.4, 4.7 μM, and 0.19 μM for ATP-actin, ADP-Pi-actin, ADP-actin, and G-actin, re