Exportin 1 (XPO1), also known as chromosomal maintenance 1 (CRM1), is an eukaryotic protein that mediates the nuclear export of proteins, rRNA, snRNA, and some mRNA.[1][2][3][4]
XPO1 (CRM1) originally was identified in the fission yeast Schizosaccharomyces pombe in a genetic screen, and investigators determined that it was involved in control of the chromosome structure[5]
Function
Exportin 1 mediates leucine-rich nuclear export signal (NES)-dependent protein transport. Exportin 1 specifically mediates the nuclear export of Rev and U snRNAs. It is involved in the control of several cellular processes by controlling the localization of cyclin B, MAPK, and MAPKAP kinase 2. This protein also regulates NFAT and AP-1.[6]
↑Fornerod M, Ohno M, Yoshida M, Mattaj IW (September 1997). "CRM1 is an export receptor for leucine-rich nuclear export signals". Cell. 90 (6): 1051–60. doi:10.1016/S0092-8674(00)80371-2. PMID9323133.
↑Kudo N, Khochbin S, Nishi K, Kitano K, Yanagida M, Yoshida M, Horinouchi S (Dec 1997). "Molecular cloning and cell cycle-dependent expression of mammalian CRM1, a protein involved in nuclear export of proteins". J Biol Chem. 272 (47): 29742–51. doi:10.1074/jbc.272.47.29742. PMID9368044.
↑Köhler, Alwin; Hurt, Ed (October 2007). "Exporting RNA from the nucleus to the cytoplasm". Nature Reviews Molecular Cell Biology. 8 (10): 761–773. doi:10.1038/nrm2255. PMID17786152.
↑Lu C, Figueroa JA, Liu Z, Konala V, Aulakh A, Verma R, Cobos E, Chiriva-Internati M, Gao W (September 2015). "Nuclear Export as a Novel Therapeutic Target: The CRM1 Connection". Current Cancer Drug Targets. 15 (7): 575–592. doi:10.2174/156800961507150828223554.
↑Noske A, Weichert W, Niesporek S, Röske A, Buckendahl AC, Koch I, Sehouli J, Dietel M, Denkert C (Apr 2008). "Expression of the nuclear export protein chromosomal region maintenance/exportin 1/Xpo1 is a prognostic factor in human ovarian cancer". Cancer. 112 (8): 1733–43. doi:10.1002/cncr.23354. PMID18306389.
↑ 7.07.1Tickenbrock L, Cramer J, Vetter IR, Muller O (August 2002). "The coiled coil region (amino acids 129-250) of the tumor suppressor protein adenomatous polyposis coli (APC). Its structure and its interaction with chromosome maintenance region 1 (Crm-1)". J. Biol. Chem. 277 (35): 32332–8. doi:10.1074/jbc.M203990200. PMID12070164.
↑Ishida N, Hara T, Kamura T, Yoshida M, Nakayama K, Nakayama KI (April 2002). "Phosphorylation of p27Kip1 on serine 10 is required for its binding to CRM1 and nuclear export". J. Biol. Chem. 277 (17): 14355–8. doi:10.1074/jbc.C100762200. PMID11889117.
↑Raval A, Weissman JD, Howcroft TK, Singer DS (January 2003). "The GTP-binding domain of class II transactivator regulates its nuclear export". J. Immunol. 170 (2): 922–30. doi:10.4049/jimmunol.170.2.922. PMID12517958.
↑Thomas F, Kutay U (June 2003). "Biogenesis and nuclear export of ribosomal subunits in higher eukaryotes depend on the CRM1 export pathway". J. Cell Sci. 116 (Pt 12): 2409–19. doi:10.1242/jcs.00464. PMID12724356.
↑Singh BB, Patel HH, Roepman R, Schick D, Ferreira PA (Dec 1999). "The zinc finger cluster domain of RanBP2 is a specific docking site for the nuclear export factor, exportin-1". J. Biol. Chem. 274 (52): 37370–8. doi:10.1074/jbc.274.52.37370. PMID10601307.
↑Lindsay ME, Plafker K, Smith AE, Clurman BE, Macara IG (August 2002). "Npap60/Nup50 is a tri-stable switch that stimulates importin-alpha:beta-mediated nuclear protein import". Cell. 110 (3): 349–60. doi:10.1016/s0092-8674(02)00836-x. PMID12176322.
↑Fornerod M, Ohno M, Yoshida M, Mattaj IW (September 1997). "CRM1 is an export receptor for leucine-rich nuclear export signals". Cell. 90 (6): 1051–60. doi:10.1016/s0092-8674(00)80371-2. PMID9323133.
↑Kanai M, Hanashiro K, Kim SH, Hanai S, Boulares AH, Miwa M, Fukasawa K (September 2007). "Inhibition of Crm1-p53 interaction and nuclear export of p53 by poly(ADP-ribosyl)ation". Nat. Cell Biol. 9 (10): 1175–83. doi:10.1038/ncb1638. PMID17891139.
↑Shao C, Lu C, Chen L, Koty PP, Cobos E, Gao W (August 2010). "p53-Dependent anticancer effects of leptomycin B on lung adenocarcinoma". Cancer Chemother. Pharmacol. 67 (6): 1369–80. doi:10.1007/s00280-010-1434-6. PMID20803015.
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Stauber RH, Mann W, Knauer SK (2007). "Nuclear and cytoplasmic survivin: molecular mechanism, prognostic, and therapeutic potential". Cancer Res. 67 (13): 5999–6002. doi:10.1158/0008-5472.CAN-07-0494. PMID17616652.