OFD1 and cystic kidney disease: OFDS type 1 (OFD1, MIM 311200) is an X-linked dominant ciliopathy caused by mutations in OFD1 gene, involved in ciliogenesis and cilia length regulation, and it is distinguished from other OFDS subtypes by adult-onset cystic kidney disease in addition to its inheritance pattern (Ferrante et al., 2001; Singla et al., 2010).