We generated Hi-C maps from ensembles of ventral midbrain Nurr1+/NeuN+ dopaminergic neuron nuclei and discovered that some of the chromosomal conformations harboring common variants associated with risk for schizophrenia are, in non-random manner, co-localized with chromosomal domains harboring risk variants associated with excess body mass. The gene discussed is NR4A2; the disease is schizophrenia.