Tags: Protein.
COP9 signalosome complex subunit 3 is a protein that in humans is encoded by the COPS3 gene.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.