G-protein signaling pathways regulating neurotransmitter release in cholinergic motor neurons. Components shown in bold are enriched in the unc-4::GFP motor neuron data set. All others are EGs with the exception of the dop-3 transcript which is not detected (light gray text). See Table 3 for protein descriptions. Green denotes interactions that promote acetylcholine (ACh) release and red marks steps that inhibit synaptic vesicle fusion. Neurotransmitters are highlighted in gray boxes. This figure adapted from Reynolds et al. (2004) .