CETN2

Centrin, EF-hand protein, 2
PDB rendering based on 1m39.
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 1M39​, 1ZMZ​, 2A4J​, 2GGM​, 2K2I​, 2OBH​
Identifiers
Symbols	CETN2 ; CALT; CEN2
External IDs	OMIM: 300006 MGI: 1347085 HomoloGene: 55798 GeneCards: CETN2 Gene
Gene ontology Molecular function • calcium ion binding • protein binding • microtubule binding • G-protein beta/gamma-subunit complex binding • heterotrimeric G-protein binding Cellular component • intracellular • nucleoplasm • centrosome • centriole • cytosol • photoreceptor connecting cilium • ciliary basal body • XPC complex Biological process • G2/M transition of mitotic cell cycle • mitotic cell cycle • nucleotide-excision repair • organelle organization • mitotic nuclear division • centriole replication • spermatogenesis • protein sumoylation • regulation of cytokinesis • post-translational protein modification • cellular protein metabolic process • cell division Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	1069	26370
Ensembl	ENSG00000147400	ENSMUSG00000031347
UniProt	P41208	Q9R1K9
RefSeq (mRNA)	NM_004344	NM_019405
RefSeq (protein)	NP_004335	NP_062278
Location (UCSC)	Chr X: 152.83 – 152.83 Mb	Chr X: 72.91 – 72.92 Mb
PubMed search

Centrin-2 is a protein that in humans is encoded by the CETN2 gene.^[1][2][3] It belongs to the centrin family of proteins.

Caltractin belongs to a family of calcium-binding proteins and is a structural component of the centrosome. The high level of conservation from algae to humans and its association with the centrosome suggested that caltractin plays a fundamental role in the structure and function of the microtubule-organizing center, possibly required for the proper duplication and segregation of the centrosome.^[3]

Interactions

CETN2 has been shown to interact with XPC^[4] and SFI1.^[5]

References

1. Tanaka T, Okui K, Nakamura Y (May 1995). "Assignment of the human caltractin gene (CALT) to Xq28 by fluorescence in situ hybridization". Genomics 24 (3): 609–10. PMID 7713520.
2. Chatterjee A, Tanaka T, Parrish JE, Herman GE (Apr 1996). "Refined mapping of caltractin in human Xq28 and in the homologous region of the mouse X chromosome places the gene within the bare patches (Bpa) and striated (Str) critical regions". Mamm Genome 6 (11): 802–4. doi:10.1007/BF00539008. PMID 8597638.
3. "Entrez Gene: CETN2 centrin, EF-hand protein, 2".
4. Araki, M; Masutani C; Takemura M; Uchida A; Sugasawa K; Kondoh J; Ohkuma Y; Hanaoka F (Jun 2001). "Centrosome protein centrin 2/caltractin 1 is part of the xeroderma pigmentosum group C complex that initiates global genome nucleotide excision repair". J. Biol. Chem. (United States) 276 (22): 18665–72. doi:10.1074/jbc.M100855200. ISSN 0021-9258. PMID 11279143.
5. Martinez-Sanz, J; Kateb, F; Assairi, L; Blouquit, Y; Bodenhausen, G; Abergel, D; Mouawad, L; Craescu, CT (Jan 8, 2010). "Structure, dynamics and thermodynamics of the human centrin 2/hSfi1 complex.". Journal of Molecular Biology 395 (1): 191–204. doi:10.1016/j.jmb.2009.10.041. PMID 19857500.

Further reading

• Lee VD, Huang B (1994). "Molecular cloning and centrosomal localization of human caltractin.". Proc. Natl. Acad. Sci. U.S.A. 90 (23): 11039–43. doi:10.1073/pnas.90.23.11039. PMC 47917. PMID 8248209.
• Wolfrum U, Salisbury JL (1998). "Expression of centrin isoforms in the mammalian retina.". Exp. Cell Res. 242 (1): 10–7. doi:10.1006/excr.1998.4038. PMID 9665797.
• Durussel I, Blouquit Y, Middendorp S; et al. (2000). "Cation- and peptide-binding properties of human centrin 2.". FEBS Lett. 472 (2-3): 208–12. doi:10.1016/S0014-5793(00)01452-6. PMID 10788612.
• Mallon AM, Platzer M, Bate R; et al. (2000). "Comparative genome sequence analysis of the Bpa/Str region in mouse and Man.". Genome Res. 10 (6): 758–75. doi:10.1101/gr.10.6.758. PMC 310879. PMID 10854409.
• Hartley JL, Temple GF, Brasch MA (2001). "DNA cloning using in vitro site-specific recombination.". Genome Res. 10 (11): 1788–95. doi:10.1101/gr.143000. PMC 310948. PMID 11076863.
• Simpson JC, Wellenreuther R, Poustka A; et al. (2001). "Systematic subcellular localization of novel proteins identified by large-scale cDNA sequencing.". EMBO Rep. 1 (3): 287–92. doi:10.1093/embo-reports/kvd058. PMC 1083732. PMID 11256614.
• Araki M, Masutani C, Takemura M; et al. (2001). "Centrosome protein centrin 2/caltractin 1 is part of the xeroderma pigmentosum group C complex that initiates global genome nucleotide excision repair.". J. Biol. Chem. 276 (22): 18665–72. doi:10.1074/jbc.M100855200. PMID 11279143.
• Salisbury JL, Suino KM, Busby R, Springett M (2003). "Centrin-2 is required for centriole duplication in mammalian cells.". Curr. Biol. 12 (15): 1287–92. doi:10.1016/S0960-9822(02)01019-9. PMID 12176356.
• Strausberg RL, Feingold EA, Grouse LH; et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Matei E, Miron S, Blouquit Y; et al. (2003). "C-terminal half of human centrin 2 behaves like a regulatory EF-hand domain.". Biochemistry 42 (6): 1439–50. doi:10.1021/bi0269714. PMID 12578356.
• Gavet O, Alvarez C, Gaspar P, Bornens M (2004). "Centrin4p, a novel mammalian centrin specifically expressed in ciliated cells.". Mol. Biol. Cell 14 (5): 1818–34. doi:10.1091/mbc.E02-11-0709. PMC 165080. PMID 12802058.
• Popescu A, Miron S, Blouquit Y; et al. (2003). "Xeroderma pigmentosum group C protein possesses a high affinity binding site to human centrin 2 and calmodulin.". J. Biol. Chem. 278 (41): 40252–61. doi:10.1074/jbc.M302546200. PMID 12890685.
• Kilmartin JV (2003). "Sfi1p has conserved centrin-binding sites and an essential function in budding yeast spindle pole body duplication.". J. Cell Biol. 162 (7): 1211–21. doi:10.1083/jcb.200307064. PMC 2173958. PMID 14504268.
• Chang F, Re F, Sebastian S; et al. (2004). "HIV-1 Vpr induces defects in mitosis, cytokinesis, nuclear structure, and centrosomes.". Mol. Biol. Cell 15 (4): 1793–801. doi:10.1091/mbc.E03-09-0691. PMC 379276. PMID 14767062.
• Tourbez M, Firanescu C, Yang A; et al. (2005). "Calcium-dependent self-assembly of human centrin 2.". J. Biol. Chem. 279 (46): 47672–80. doi:10.1074/jbc.M404996200. PMID 15356003.
• Gerhard DS, Wagner L, Feingold EA; et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Wiemann S, Arlt D, Huber W; et al. (2004). "From ORFeome to biology: a functional genomics pipeline.". Genome Res. 14 (10B): 2136–44. doi:10.1101/gr.2576704. PMC 528930. PMID 15489336.
• Nishi R, Okuda Y, Watanabe E; et al. (2005). "Centrin 2 stimulates nucleotide excision repair by interacting with xeroderma pigmentosum group C protein.". Mol. Cell. Biol. 25 (13): 5664–74. doi:10.1128/MCB.25.13.5664-5674.2005. PMC 1156980. PMID 15964821.