part of antennal mechanosensory and motor center synaptic neuropil subdomain antennal mechanosensory and motor center zone D 2009-11-23T04:03:53Z Presence of presynaptic sites determined by immunoreactivity to syntaxin and synaptobrevin::GFP localization (Kamikouchi et al., 2006). Johnston organ neuron bundle D JON bundle D Antennal mechanosensory and motor center zone D is a synapse rich sub-region of the antennal mechanosensory and motor center (AMMC) that arises from the bifurcation that terminates the lateral core bundle. (The other half of the bifurcation forms zone C). It is rich in the presynapses of zone D Johnston's organ neurons (zone D JONs). zone D FBbt:00100018 VFB:FBbt_00100018 fly_anatomy.ontology AMMC zone D