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Component of the intraflagellar transport (IFT) complex B: together with IFT74, forms a tubulin-binding module that specifically mediates transport of tubulin within the cilium. Binds tubulin via its CH (calponin-homology)-like region. Required for ciliogenesis. Required for proper regulation of SHH signaling.
Gene References into Functions
This represents the first report of mutations in IFT81 as a candidate gene for nonsyndromic retinal dystrophy, hence expanding the phenotype spectrum of IFT-B components. PMID: 28460050
this study found that the two core intraflagellar transport proteins IFT74 and IFT81 form a tubulin-binding module and mapped the interaction to a calponin homology domain of IFT81 and a highly basic domain in IFT74. PMID: 23990561
inconsistent expression levels of human CDV-1 and mouse Cdv-1 in heart implied that cardiac hypertrophy in human SCD might not be associated with the abnormal expression of CDV-1 PMID: 12549821
Subcellular Location
Cell projection, cilium.
Protein Families
IFT81 family
Tissue Specificity
Highly expressed in testis, moderately in ovary, heart, liver, skeletal muscle, kidney and pancreas, low in prostate, brain, placenta and lung and not detected in spleen, thymus, small intestine and colon. Isoform CDV-1R is abundantly expressed in testis.