A Schematic representation of the L3MBTL3 protein and the deletion mutants used in panel B. The L3MBTL3 protein (XP_006715641.1) consists of a C2C2 zinc finger (ZnF #1; CDD: 128717), three MBT domains (CDD: 214723), a C2H2 zinc finger (ZnF #2; CDD: 201844) and a sterile α motif domain (SAM; CDD: 197735). 