LMX1B and nail-patella syndrome: Away from the midbrain, mutations in the LIM and/or homeodomain of LMX1B cause Nail-Patella syndrome, a human disease characterized by skeletal developmental abnormalities, chronic nephropathy, and open-angle glaucoma (Choquet et al., 2018; Harita et al., 2017; Shiga et al., 2018).