FunctionComponent of the centrioles controlling mother and daughter centrioles length. Recruits to the centriole IFT88 and centriole distal appendage-specific proteins including CEP164. Involved in the biogenesis of the cilium, a centriole-associated function. The cilium is a cell surface projection found in many vertebrate cells required to transduce signals important for development and tissue homeostasis. Plays an important role in development by regulating Wnt signaling and the specification of the left-right axis.
Tissue specificityWidely expressed. Expressed in 9 and 14 weeks old embryos in metanephric mesenchyme, oral mucosa, lung, heart, nasal and cranial cartilage, and brain. Expressed in metanephros, brain, tongue, and limb.
Involvement in diseaseDefects in OFD1 are the cause of oral-facial-digital syndrome type 1 (OFD1) [MIM:311200]. OFD1 is a X-linked dominant condition with lethality in males. The syndrome is characterized by clefts of the jaw and tongue in the area of the lateral incisors and canines. Other features are malformations of the face and skull, malformation of the hands (specifically syndactyly, clinodactyly, brachydactyly and occasionally postaxial polydactyly) and mental retardation. OFD1 also causes polycystic kidney disease. Defects in OFD1 are associated with Simpson-Golabi-Behmel syndrome type 2 (SGBS2) [MIM:300209]. SGBS2 is a severe variant of Simpson-Golabi-Behmel syndrome, a condition characterized by pre-and postnatal overgrowth (gigantism), facial dysmorphism and a variety of inconstant visceral and skeletal malformations. Defects in OFD1 are the cause of Joubert syndrome type 10 (JBTS10) [MIM:300804]. A disorder presenting with cerebellar ataxia, oculomotor apraxia, hypotonia, neonatal breathing abnormalities and psychomotor delay. Neuroradiologically, it is characterized by cerebellar vermian hypoplasia/aplasia, thickened and reoriented superior cerebellar peduncles, and an abnormally large interpeduncular fossa, giving the appearance of a molar tooth on transaxial slices (molar tooth sign). Additional variable features include retinal dystrophy and renal disease.
Sequence similaritiesBelongs to the OFD1 family. Contains 1 LisH domain.