The COP9 Signalosome Regulates Skp2 Levels and Proliferation of Human Cells

Abstract excerpt

The COP9 signalosome (CSN) is a conserved, multisubunit complex first identified as a developmental regulator in plants. Gene inactivation of single CSN subunits results in early embryonic lethality in mice, indicating that the CSN is essential for mammalian development. The pleiotropic function of the CSN may be related to its ability to remove the ubiquitin-like peptide Nedd8 from cullin-RING ubiquitin ligases,...

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