COP9 signalosome complex subunit 4 is a protein that in humans is encoded by the COPS4gene.[5][6]
This gene encodes one of eight subunits composing 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.[6]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Wei N, Tsuge T, Serino G, Dohmae N, Takio K, Matsui M, Deng XW (Oct 1998). "The COP9 complex is conserved between plants and mammals and is related to the 26S proteasome regulatory complex". Curr Biol. 8 (16): 919–924. doi:10.1016/S0960-9822(07)00372-7. PMID9707402.
Schwechheimer C, Deng XW (2001). "COP9 signalosome revisited: a novel mediator of protein degradation". Trends Cell Biol. 11 (10): 420–426. doi:10.1016/S0962-8924(01)02091-8. PMID11567875.
Wolf DA, Zhou C, Wee S (2004). "The COP9 signalosome: an assembly and maintenance platform for cullin ubiquitin ligases?". Nat. Cell Biol. 5 (12): 1029–1033. doi:10.1038/ncb1203-1029. PMID14647295.
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–174. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Suzuki Y; Yoshitomo-Nakagawa K; Maruyama K; et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–156. doi:10.1016/S0378-1119(97)00411-3. PMID9373149. {{cite journal}}: Unknown parameter |name-list-format= ignored (|name-list-style= suggested) (help)
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. doi:10.1096/fasebj.12.6.469. PMID9535219. {{cite journal}}: Unknown parameter |name-list-format= ignored (|name-list-style= suggested) (help)CS1 maint: unflagged free DOI (link)
Tsuge T, Matsui M, Wei N (2001). "The subunit 1 of the COP9 signalosome suppresses gene expression through its N-terminal domain and incorporates into the complex through the PCI domain". J. Mol. Biol. 305 (1): 1–9. doi:10.1006/jmbi.2000.4288. PMID11114242.
Peyrl A; Weitzdoerfer R; Gulesserian T; et al. (2003). "Aberrant expression of signaling-related proteins 14-3-3 gamma and RACK1 in fetal Down syndrome brain (trisomy 21)". Electrophoresis. 23 (1): 152–7. doi:10.1002/1522-2683(200201)23:1<152::AID-ELPS152>3.0.CO;2-T. PMID11824616. {{cite journal}}: Unknown parameter |name-list-format= ignored (|name-list-style= suggested) (help)
Hoareau Alves K, Bochard V, Réty S, Jalinot P (2002). "Association of the mammalian proto-oncoprotein Int-6 with the three protein complexes eIF3, COP9 signalosome and 26S proteasome". FEBS Lett. 527 (1–3): 15–21. doi:10.1016/S0014-5793(02)03147-2. PMID12220626.
Groisman R; Polanowska J; Kuraoka I; et al. (2003). "The ubiquitin ligase activity in the DDB2 and CSA complexes is differentially regulated by the COP9 signalosome in response to DNA damage". Cell. 113 (3): 357–367. doi:10.1016/S0092-8674(03)00316-7. PMID12732143. {{cite journal}}: Unknown parameter |name-list-format= ignored (|name-list-style= suggested) (help)
