2bp deletion within the first exon of side-IV.
2bp deletion within the second coding exon of side-IV.
side-IVΔ2/side-IVΔ2 is an enhancer of abnormal neuroanatomy phenotype of side-VIIΔ3-4-1
side-IVΔ2, side-VIIΔ3-4-1 has abnormal neuroanatomy phenotype
side-IVΔ2/side-IVΔ2 is an enhancer of lamina monopolar neuron phenotype of side-VIIΔ3-4-1
side-IVΔ2/side-IVΔ2 is an enhancer of synapse phenotype of side-VIIΔ3-4-1
side-IVΔ2, side-VIIΔ3-4-1 has synapse phenotype
side-IVΔ2, side-VIIΔ3-4-1 has lamina monopolar neuron L2 phenotype