Figures & data
Figure 1. Sites of modulation at arthropod neuromuscular synapses. Electrical impulses in the motor axons trigger release of the primary neurotransmitter, L-glutamate, from small synaptic vesicles. Effects of the primary transmitter are mediated by ionotropic receptors and can be modulated via GPCRs that are activated by co-transmitters and neurohormones.
Figure 2. Matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry of extracts from 10 Drosophila 3rd instar larvae reveals a small peak (arrow) at 649.6 Da, close to the predicted molecular mass of Proctolin (648 Da).
