CDK8 phosphorylates conserved serine residues in the TAD and PEST domains of NICD1. Phosphorylation targets NICD1 for ubiquitination and degradation, ultimately terminating transcriptional activity of NOTCH1 (Fryer et al. 2004).
Fryer, CJ, Jones, KA, White, JB
cyclin-dependent protein serine/threonine kinase activity of NOTCH1 Coactivator Complex:CDK8:CCNC [nucleoplasm]
© 2023 Reactome