To investigate cochlear-specific regulatory interactions at the Nr2f1 locus implicated in Bosch-Boonstra-Schaaf optic atrophy syndrome (BBSOAS) and the accompanying hearing loss phenotype, we visualized chromatin contact maps at 10 kb resolution on chromosome 13. The gene discussed is NR2F1; the disease is Bosch-Boonstra-Schaaf optic atrophy syndrome.