A Polycomb group protein complex with sequence-specific DNA-binding and selective methyl-lysine-binding activities.
Klymenko T, Papp B, Fischle W, Köcher T, Schelder M, Fritsch C, Wild B, Wilm M, Müller J. Genes Dev. 2006 May 1; 20(9):1110-22. Epub 2006 Apr 17.