kap-1 encodes a kinesin-associated protein that, along with KLP-20 and KLP-11, is part of the C. elegans heterotrimeric kinesin-II motor protein; animals homozygous for a kap-1 loss-of-function mutation have normal cilia and thus display normal dye-filling and osmotic avoidance behavior; however, animals doubly mutant for kap-1 and osm-3, which encodes a homomeric kinesin-II motor protein, do show defects in intraflagellar transport (IFT) indicating that the heteromeric kinsesin-II and homomeric OSM-3 motor protein complexes function redundantly to effect IFT; antibodies to KAP-1 detect high intensity staining in sensory neuron cilia; kap-1 expression in the AWB sensory neurons is positively regulated by FKH-2.
Contributes to microtubule motor activity. Involved in intraciliary anterograde transport; negative regulation of non-motile cilium assembly; and positive regulation of non-motile cilium assembly. Located in ciliary transition zone and non-motile cilium. Part of axonemal heterotrimeric kinesin-II complex. Expressed in ciliated neurons. Is an ortholog of human KIFAP3 (kinesin associated protein 3).
There are two kap-1 genes. The CGC_approved one is connected to F08F8.3a/b, the non_CGC_approved one (from the original GenBank/EMBL AF045926) is an other_name of aka-1 and is linked to D1022.7a/b/c [JAH][030120 ck1]
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.