Retinoblastoma-like protein 2 (RBL2)

Key regulator of entry into mobile division. Directly involved in heterochromatin formation by maintaining overall chromatin structure and, in particular, that of constitutive heterochromatin by stabilizing histone methylation.

Recruits and goals histone methyltransferases KMT5B and KMT5C, leading to epigenetic transcriptional repression. Probably functions as a transcription repressor by recruiting chromatin-modifying enzymes to promoters.