Caenorhabditis elegans DYF-2, an orthologue of human WDR19, is a component of the intraflagellar transport machinery in sensory cilia.
Intraflagellar transport (IFT) machinery needed to build functional cilia consists of a multisubunit complex whose molecular composition, organization and functions are poorly understood. Here, we describe the tryptophan-aspartic acid (WD) repeat Novel (WDR) containing IFT protein of Caenorhabditis elegans, DYF-2, which plays an important role in maintaining the structural and functional integrity of the machine IFT. We determine the identity dyf-2 gene by transgenic rescue mutant Human Clia kits phenotype and by sequencing the mutant allele. Losing DYF-2 selective function affects the assembly and motility of different IFT components and leads to defects in cilia structure and chemosensation in nematodes. Based on these observations, and analysis DYF-2 moves in Bardet-Biedl syndrome mutant with partially disrupted IFT particles, we conclude that the DYF-2 can associate with IFT complex particles B. At the same time, mutation in dyf-2 can interfere with the function...