text_1: The first MBT repeat of the four malignant brain tumor (4MBT) domain of Drosophila's Sfmbt and of the orthologous mammalian L3MBTL2 is required for the interaction with the spacer region of Drosophila's Pleiohomeotic (Pho) or its human ortholog YY1.
text_2: L3mbtl2 regulates genes by recruiting a Polycomb Repressive Complex1 (PRC1)-related complex, resembling the previously described E2F6-complex, and including G9A, Hdac1, and Ring1b.