| Primary Identifier | IPR033008 | Type | Family |
| Short Name | CSN1 |
| description | COP9 signalosome complex subunit 1 (CSN1) is an essential component of the COP9 signalosome complex (CSN), an eight-subunit protein complex that is found in all eukaryotes []. The CSN complex cleaves the isopeptide bond of ubiquitin-like protein Nedd8 from cullins and is involved in various cellular and developmental processes, such as repression of photomorphogenesis in plants and protein subcellular localization, DNA-damage response, and NF-kappaB activation in mammals [, ]. CSN1 carries a C-terminal PCI (for Proteasome, COP9 signalosome, and Initiation factor 3) domain which mediates protein-protein interactions within the complex []. Its N-terminal domain is critical for the function of CSN []. |
