Polycomb protein EED (EED)

Polycomb group (PcG) protein. Part of the PRC2/EED- EZH2 complex, which methylates'Lys-9' and'Lys-27' of histone H3, leading to transcriptional repression of the affected target gene.

Additionally admits'Lys-26' trimethylated histone H1 with the consequence of inhibiting PRC2 complex methyltransferase activity on nucleosomal histone H3'Lys-27', whereas H3'Lys-27' recognition has the opposite effect, enabling the propagation of the repressive mark. The PRC2/EED-EZH2 complex may also serve as a recruiting platform for DNA methyltransferases, thereby linking two epigenetic repression systems.