This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of the ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbxs class. This protein is similar to xenopus early mitotic inhibitor-1 (Emi1), which is a mitotic regulator that interacts with Cdc20 and inhibits the anaphase promoting complex.[3]
Disease
Gene and protein expression of FBXO5/Emi1 are increased in many human cancers and increased expression has been shown to cause chromosome instability and cancer.[4]
↑Cenciarelli C, Chiaur DS, Guardavaccaro D, Parks W, Vidal M, Pagano M (Dec 1999). "Identification of a family of human F-box proteins". Curr Biol. 9 (20): 1177–9. doi:10.1016/S0960-9822(00)80020-2. PMID10531035.
↑Vaidyanathan S, Cato K, Tang L, Pavey S, Haass NK, Gabrielli BG, Duijf PH (October 2016). "In vivo overexpression of Emi1 promotes chromosome instability and tumorigenesis". Oncogene. 35 (41): 5446–5455. doi:10.1038/onc.2016.94. PMID27065322.
↑ 5.05.1Hsu JY, Reimann JD, Sørensen CS, Lukas J, Jackson PK (May 2002). "E2F-dependent accumulation of hEmi1 regulates S phase entry by inhibiting APC(Cdh1)". Nat. Cell Biol. 4 (5): 358–66. doi:10.1038/ncb785. PMID11988738.
↑Cenciarelli C, Chiaur DS, Guardavaccaro D, Parks W, Vidal M, Pagano M (Oct 1999). "Identification of a family of human F-box proteins". Curr. Biol. 9 (20): 1177–9. doi:10.1016/S0960-9822(00)80020-2. PMID10531035.
Further reading
Gubin AN, Njoroge JM, Bouffard GG, Miller JL (1999). "Gene expression in proliferating human erythroid cells". Genomics. 59 (2): 168–77. doi:10.1006/geno.1999.5855. PMID10409428.
Chiaur DS, Murthy S, Cenciarelli C, Parks W, Loda M, Inghirami G, Demetrick D, Pagano M (2000). "Five human genes encoding F-box proteins: chromosome mapping and analysis in human tumors". Cytogenet. Cell Genet. 88 (3–4): 255–8. doi:10.1159/000015532. PMID10828603.
Reimann JD, Freed E, Hsu JY, Kramer ER, Peters JM, Jackson PK (2001). "Emi1 is a mitotic regulator that interacts with Cdc20 and inhibits the anaphase promoting complex". Cell. 105 (5): 645–55. doi:10.1016/S0092-8674(01)00361-0. PMID11389834.
Reimann JD, Jackson PK (2002). "Emi1 is required for cytostatic factor arrest in vertebrate eggs". Nature. 416 (6883): 850–4. doi:10.1038/416850a. PMID11976684.
Hsu JY, Reimann JD, Sørensen CS, Lukas J, Jackson PK (2002). "E2F-dependent accumulation of hEmi1 regulates S phase entry by inhibiting APC(Cdh1)". Nat. Cell Biol. 4 (5): 358–66. doi:10.1038/ncb785. PMID11988738.
Li Z, Hu CY, Mo BQ, Xu JD, Zhao Y (2003). "[Effect of beta-carotene on gene expression of breast cancer cells]". Ai Zheng. 22 (4): 380–4. PMID12703993.
Margottin-Goguet F, Hsu JY, Loktev A, Hsieh HM, Reimann JD, Jackson PK (2003). "Prophase destruction of Emi1 by the SCF(betaTrCP/Slimb) ubiquitin ligase activates the anaphase promoting complex to allow progression beyond prometaphase". Dev. Cell. 4 (6): 813–26. doi:10.1016/S1534-5807(03)00153-9. PMID12791267.
Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID16189514.
Eldridge AG, Loktev AV, Hansen DV, Verschuren EW, Reimann JD, Jackson PK (2006). "The evi5 oncogene regulates cyclin accumulation by stabilizing the anaphase-promoting complex inhibitor emi1". Cell. 124 (2): 367–80. doi:10.1016/j.cell.2005.10.038. PMID16439210.
Lehman NL, Verschuren EW, Hsu JY, Cherry AM, Jackson PK (2006). "Overexpression of the anaphase promoting complex/cyclosome inhibitor Emi1 leads to tetraploidy and genomic instability of p53-deficient cells". Cell Cycle. 5 (14): 1569–73. doi:10.4161/cc.5.14.2925. PMID16861914.