Rootletin

Ciliary rootlet coiled-coil, rootletin
Identifiers
Symbols CROCC ; ROLT
External IDs OMIM: 615776 MGI: 3529431 HomoloGene: 16811 GeneCards: CROCC Gene
Orthologs
Species Human Mouse
Entrez 9696 230872
Ensembl ENSG00000058453 ENSMUSG00000040860
UniProt Q5TZA2 Q8CJ40
RefSeq (mRNA) NM_014675 NM_001145958
RefSeq (protein) NP_055490 NP_001139430
Location (UCSC) Chr 1:
16.74 – 16.97 Mb
Chr 4:
141.02 – 141.06 Mb
PubMed search
Rootletin
Identifiers
Symbol Rootletin
Pfam PF15035

Rootletin also known as ciliary rootlet coiled-coil protein (CROCC) is a protein that in humans is encoded by the CROCC gene.[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.

Function

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]

References

  1. 1 2 Yang J, Liu X, Yue G, Adamian M, Bulgakov O, Li T (Nov 2002). "Rootletin, a novel coiled-coil protein, is a structural component of the ciliary rootlet". J Cell Biol 159 (3): 431–40. doi:10.1083/jcb.200207153. PMC 2173070. PMID 12427867.
  2. McClintock TS, Glasser CE, Bose SC, Bergman DA (Jan 2008). "Tissue expression patterns identify mouse cilia genes". Physiol Genomics 32 (2): 198–206. doi:10.1152/physiolgenomics.00128.2007. PMID 17971504.
  3. "Entrez Gene: CROCC ciliary rootlet coiled-coil, rootletin".
  4. Graser S, Stierhof YD, Nigg EA (December 2007). "Cep68 and Cep215 (Cdk5rap2) are required for centrosome cohesion". J. Cell. Sci. 120 (Pt 24): 4321–31. doi:10.1242/jcs.020248. PMID 18042621.
  5. Bahe S, Stierhof YD, Wilkinson CJ, Leiss F, Nigg EA (October 2005). "Rootletin forms centriole-associated filaments and functions in centrosome cohesion". J. Cell Biol. 171 (1): 27–33. doi:10.1083/jcb.200504107. PMC 2171225. PMID 16203858.
  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. PMID 19576775.

Further reading

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