This family of proteins is found in eukaryotes and members are approximately 160 amino acids in length. There are two conserved sequence motifs: YYY and DPR. This transmembrane protein belongs to a family found in eukaryotes and is involved in the biogenesis and degradation of ciliated cells [1]. Mutations in this protein cause the disease Joubert syndrome(JBTS) where the cilia becomes non-motile. Ciliopathy can be severe since cilia provide the cell with large amounts of information through signals. Ciliopathy can affect cell behaviour as the appropriate signals between the cell and its environment are not made, which can affect cell survival.

1: Evolutionarily assembled cis-regulatory module at a human ciliopathy locus. Lee JH, Silhavy JL, Lee JE, Al-Gazali L, Thomas S, Davis EE, Bielas SL, Hill KJ, Iannicelli M, Brancati F, Gabriel SB, Russ C, Logan CV, Sharif SM, Bennett CP, Abe M, Hildebrandt F, Diplas BH, Attie-Bitach T, Katsanis N, Rajab A, Koul R, Sztriha L, Waters ER, Ferro-Novick S, Woods CG, Johnson CA, Valente EM, Zaki MS, Gleeson JG; Science. 2012;335:966-969. PMID:22282472