Nephrocystin-3 is aprotein that in humans is encoded by theNPHP3gene.[5][6][7]
This gene encodes a protein containing a coiled-coil (CC) domain, a tubulin-tyrosine ligase (TTL) domain, and a tetratrico peptide repeat (TPR) domain. The encoded protein interacts with nephrocystin and may function in renal tubular development and function. Mutations in this gene are associated with nephronophthisis type 3. Multiplesplice variants have been described but their full-length nature has not been determined.[7]
An association withrenal-hepatic-pancreatic dysplasia has been described.[8]