Fig. 2
From: Post-translational modifications on the retinoblastoma protein
Summary of posttranslational modification sites on pRb. Sites of phosphorylation, SUMOylation, methylation and acetylation on pRb with reported functional outputs are shown, while sites of ubiquitination on pRb identified by mass spectrometry without documented functional outcomes are also shown. N and C indicate the N- and C-terminals of the protein