In 2016, the microrchidia family CW-type zinc finger 2 gene (MORC2) was identified as a causative gene of autosomal dominant axonal Charcot–Marie–Tooth disease type 2Z (CMT2Z, MIM# 616688) in Spanish families [2]. The gene discussed is MORC2; the disease is Charcot-Marie-Tooth disease axonal type 2Z.