IQ calmodulin-binding motif-containing protein 1 (IQCB1, also called NPHP5) is involved in ciliogenesis []. Mutations in IQCB1 gene cause Senior-Loken syndrome 5 (SLSN5), which is a renal-retinal disorder characterised by progressive wasting of the filtering unit of the kidney (nephronophthisis), with or without medullary cystic renal disease, and progressive eye disease [].