Title : Differential signalling by muscarinic receptors in smooth muscle: m2-mediated inactivation of myosin light chain kinase via Gi3, Cdc42\/Rac1 and p21-activated kinase 1 pathway, and m3-mediated MLC20 (20 kDa regulatory light chain of myosin II) phosphorylation via Rho-associated kinase\/myosin phosphatase targeting subunit 1 and protein kinase C\/CPI-17 pathway - Murthy_2003_Biochem.J_374_145