Rootletin also known as ciliary rootlet coiled-coil protein (CROCC) is a protein that in humans is encoded by the CROCCgene.[1][2][3]
Rootletin is a component of the ciliary rootlet, and, together with CEP68 and CEP250, is required for centrosome cohesion.[4]
Rootletin is an important protein in the ciliary rootlet, particular for the structure and can be considered an important protein in mitosis as it is a centrosome linker.
This protein forms part of the ciliary rootlet structure. It also helps to contribute to the centrosome cohesion before mitosis.[5] Expression of rooletin leads to the formation of fibrous protein.
Structure
This protein is part of the structure of a ciliary rootlet. This cytoskeletal-like structure starts from the basal body at one end of the cilium and extends towards nucleus. Its molecular structure consists of a globular head domain and a tail domain made up of coiled-coil structures.[1]
Protein interactions
A large coiled-coil protein, C-Nap1, is a docking site for the fibrous tether to proximal ends of centrioles which Rootletin physically interacts with. Furthermore, Rootletin is phosphorylated by Nek2 kinase.[6]
↑Lim HH, Zhang T, Surana U (July 2009). "Regulation of centrosome separation in yeast and vertebrates: common threads". Trends Cell Biol. 19 (7): 325–33. doi:10.1016/j.tcb.2009.03.008. PMID19576775.
Further reading
Ching YP, Chan SF, Jeang KT, Jin DY (2006). "The retroviral oncoprotein Tax targets the coiled-coil centrosomal protein TAX1BP2 to induce centrosome overduplication". Nat. Cell Biol. 8 (7): 717–24. doi:10.1038/ncb1432. PMID16767081.
Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1". Nature. 441 (7091): 315–21. doi:10.1038/nature04727. PMID16710414.
Andersen JS, Wilkinson CJ, Mayor T, et al. (2003). "Proteomic characterization of the human centrosome by protein correlation profiling". Nature. 426 (6966): 570–4. doi:10.1038/nature02166. PMID14654843.
Behrends U, Schneider I, Rössler S, et al. (2003). "Novel tumor antigens identified by autologous antibody screening of childhood medulloblastoma cDNA libraries". Int. J. Cancer. 106 (2): 244–51. doi:10.1002/ijc.11208. PMID12800201.
Seki N, Ohira M, Nagase T, et al. (1998). "Characterization of cDNA clones in size-fractionated cDNA libraries from human brain". DNA Res. 4 (5): 345–9. doi:10.1093/dnares/4.5.345. PMID9455484.