2-113aa; Full Length. MW: 39.9kD. Purity >90% as determined by SDS-PAGE. Probable component of the SCF (SKP1-CUL1-F-box protein) E3 ubiquitin ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins involved in cell cycle progression, signal transduction and transcription. Through the RING-type zinc finger, ses to recruit the E2 ubiquitination enzyme to the complex and brings it into close proximity to the substrate. Promotes the neddylation of C
Protein kinase CKII interacts with and phosphorylates the SAG protein containing ring-H2 finger motif.Son M.-Y., Park J.-W., Kim Y.-S., Kang S.-W., Marshak D.R., Park W., Bae Y.-S.Biochem. Biophys. Res. Commun. 263:743-748(1999)