COP9 constitutive photomorphogenic homolog subunit 6 (Arabidopsis), also known as COPS6, is a human gene. The Human Genome Organisation (HUGO is an organization involved in the Human Genome Project, a project about mapping the human genome The Mouse Genome Informatics (MGI website is run by The Jackson Laboratory. HomoloGene, a tool of the National Center for Biotechnology Information (NCBI is a system for automated detection of homologs (similarity attributable to descent The Entrez Global Query Cross-Database Search System is a powerful Federated search engine or Web portal that allows users to search many discrete Health sciences Ensembl is a joint scientific project between the European Bioinformatics Institute and the Wellcome Trust Sanger Institute, which was launched in 1999 in response to the imminent UniProt is the uni versal prot ein resource a central repository of Protein data created by combining Swiss-Prot, TrEMBL PubMed is a free search engine for accessing the MEDLINE database of citations and abstracts of biomedical research articles History See also History of genetics The existence of genes was first suggested by Gregor Mendel (1822-1884 who in the 1860s studied inheritance
The protein encoded by this gene is one of the eight subunits of COP9 signalosome, a highly conserved protein complex that functions as an important regulator in multiple signaling pathways. The structure and function of COP9 signalosome is similar to that of the 19S regulatory particle of 26S proteasome. COP9 signalosome has been shown to interact with SCF-type E3 ubiquitin ligases and act as a positive regulator of E3 ubiquitin ligases. This protein belongs to translation initiation factor 3 (eIF3) superfamily. It is involved in the regulation of cell cycle and likely to be a cellular cofactor for HIV-1 accessory gene product Vpr. [1]
References
Further reading
- Wolf DA, Zhou C, Wee S (2004). "The COP9 signalosome: an assembly and maintenance platform for cullin ubiquitin ligases?". Nat. Cell Biol. 5 (12): 1029–33. doi:10.1038/ncb1203-1029. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 14647295.
- Muthumani K, Choo AY, Premkumar A, et al. (2006). "Human immunodeficiency virus type 1 (HIV-1) Vpr-regulated cell death: insights into mechanism. ". Cell Death Differ. 12 Suppl 1: 962–70. doi:10.1038/sj.cdd.4401583. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 15832179.
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- He J, Choe S, Walker R, et al. (1995). "Human immunodeficiency virus type 1 viral protein R (Vpr) arrests cells in the G2 phase of the cell cycle by inhibiting p34cdc2 activity. ". J. Virol. 69 (11): 6705–11. PMID 7474080.
- Re F, Braaten D, Franke EK, Luban J (1995). "Human immunodeficiency virus type 1 Vpr arrests the cell cycle in G2 by inhibiting the activation of p34cdc2-cyclin B. ". J. Virol. 69 (11): 6859–64. PMID 7474100.
- Di Marzio P, Choe S, Ebright M, et al. (1996). "Mutational analysis of cell cycle arrest, nuclear localization and virion packaging of human immunodeficiency virus type 1 Vpr. ". J. Virol. 69 (12): 7909–16. PMID 7494303.
- Jowett JB, Planelles V, Poon B, et al. (1995). "The human immunodeficiency virus type 1 vpr gene arrests infected T cells in the G2 + M phase of the cell cycle. ". J. Virol. 69 (10): 6304–13. PMID 7666531.
- Zhao LJ, Mukherjee S, Narayan O (1994). "Biochemical mechanism of HIV-I Vpr function. Specific interaction with a cellular protein. ". J. Biol. Chem. 269 (22): 15577–82. PMID 8195203.
- Poon B, Jowett JB, Stewart SA, et al. (1997). "Human immunodeficiency virus type 1 vpr gene induces phenotypic effects similar to those of the DNA alkylating agent, nitrogen mustard. ". J. Virol. 71 (5): 3961–71. PMID 9094673.
- Asano K, Vornlocher HP, Richter-Cook NJ, et al. (1997). "Structure of cDNAs encoding human eukaryotic initiation factor 3 subunits. Possible roles in RNA binding and macromolecular assembly. ". J. Biol. Chem. 272 (43): 27042–52. PMID 9341143.
- Mahalingam S, Ayyavoo V, Patel M, et al. (1998). "HIV-1 Vpr interacts with a human 34-kDa mov34 homologue, a cellular factor linked to the G2/M phase transition of the mammalian cell cycle. ". Proc. Natl. Acad. Sci. U. S. A. 95 (7): 3419–24. PMID 9520381.
- Seeger M, Kraft R, Ferrell K, et al. (1998). "A novel protein complex involved in signal transduction possessing similarities to 26S proteasome subunits. ". FASEB J. 12 (6): 469–78. PMID 9535219.
- Wei N, Tsuge T, Serino G, et al. (1998). "The COP9 complex is conserved between plants and mammals and is related to the 26S proteasome regulatory complex. ". Curr. Biol. 8 (16): 919–22. PMID 9707402.
- Hrimech M, Yao XJ, Branton PE, Cohen EA (2000). "Human immunodeficiency virus type 1 Vpr-mediated G(2) cell cycle arrest: Vpr interferes with cell cycle signaling cascades by interacting with the B subunit of serine/threonine protein phosphatase 2A. ". EMBO J. 19 (15): 3956–67. doi:10.1093/emboj/19.15.3956. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 10921877.
- Elder RT, Yu M, Chen M, et al. (2000). "Cell cycle G2 arrest induced by HIV-1 Vpr in fission yeast (Schizosaccharomyces pombe) is independent of cell death and early genes in the DNA damage checkpoint. ". Virus Res. 68 (2): 161–73. PMID 10958988.
- Ramanathan MP, Ayyavoo V, Weiner DB (2001). "Choice of expression vector alters the localization of a human cellular protein. ". DNA Cell Biol. 20 (2): 101–5. doi:10.1089/104454901750070300. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 11244567.
- Bech-Otschir D, Kraft R, Huang X, et al. (2001). "COP9 signalosome-specific phosphorylation targets p53 to degradation by the ubiquitin system. ". EMBO J. 20 (7): 1630–9. doi:10.1093/emboj/20.7.1630. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 11285227.
- Lyapina S, Cope G, Shevchenko A, et al. (2001). "Promotion of NEDD-CUL1 conjugate cleavage by COP9 signalosome. ". Science 292 (5520): 1382–5. doi:10.1126/science.1059780. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 11337588.
- Elder RT, Yu M, Chen M, et al. (2001). "HIV-1 Vpr induces cell cycle G2 arrest in fission yeast (Schizosaccharomyces pombe) through a pathway involving regulatory and catalytic subunits of PP2A and acting on both Wee1 and Cdc25. ". Virology 287 (2): 359–70. doi:10.1006/viro.2001.1007. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 11531413.
- Hrimech M, Yao XJ, Branton PE, Cohen EA (2002). "Human immunodeficiency virus type 1 Vpr-mediated G(2) cell cycle arrest: Vpr interferes with cell cycle signaling cascades by interacting with the B subunit of serine/threonine protein phosphatase 2A. ". EMBO J. 21 (14): 3918. doi:10.1093/emboj/cdf420. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. PMID 12110603.
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