2 0 0 http://purl.obolibrary.org/obo/WBPhenotype_0000584 synaptic transmission variant 'synaptic transmission variant' SubClassOf 'neuron development variant' http://purl.obolibrary.org/obo/WBPhenotype_0001786 neuronal ion channel clustering defective 'neuronal ion channel clustering defective' SubClassOf 'neuron development variant'