Holmberg et al., Genes Dev 2005
(Genomic Instability) :
We report that fission yeast Ddb1 , Cullin 4 ( Pcu4 ), and CSN subunits Csn1 and Csn2 are required for degradation of the ribonucleotide reductase ( RNR ) inhibitor protein Spd1 Moss et al., Genes Dev 2010
:
The Ddb1-Cul4 ( Cdt ) ² ubiquitin ligase complex is required for degradation of Spd1 , an inhibitor of RNR in fission yeast