COP9 signalosome complex subunit 3 is a protein that in humans is encoded by the COPS3gene.[5][6][7] It encodes a subunit of the COP9 signalosome.
The protein encoded by this gene possesses kinase activity that phosphorylates regulators involved in signal transduction. It phosphorylates I-kappa-B-alpha, p105, and c-Jun. It acts as a docking site for complex-mediated phosphorylation. The gene is located within the Smith-Magenis syndrome region on chromosome 17.[7]
^Potocki L, Chen KS, Lupski JR (Jun 1999). "Subunit 3 of the COP9 signal transduction complex is conserved from plants to humans and maps within the smith-magenis syndrome critical region in 17p11.2". Genomics. 57 (1): 180–2. doi:10.1006/geno.1998.5748. PMID10191102.
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. PMID14647295. S2CID37458780.
van Dartel M, Hulsebos TJ (2004). "Amplification and overexpression of genes in 17p11.2 ~ p12 in osteosarcoma". Cancer Genet. Cytogenet. 153 (1): 77–80. doi:10.1016/j.cancergencyto.2004.03.007. PMID15325100.
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.
Gevaert K, Goethals M, Martens L, et al. (2004). "Exploring proteomes and analyzing protein processing by mass spectrometric identification of sorted N-terminal peptides". Nat. Biotechnol. 21 (5): 566–9. doi:10.1038/nbt810. PMID12665801. S2CID23783563.