A. DNMTs are classified as maintenance or de novo DNA methyltransferases. B. Three major families of MBPs. (i). The MBD family (all with MBD domain), including MeCp2, MBD1, MBD2, and MBD4 preferentially bind methylated DNA. (ii). Kaiso- and Kaiso-like proteins, shown with the main BTB domain and methyl-CpG-binding zinc fingers (mZF). Including Kaiso, ZBTB4, and ZBTB38. (iii). Set and Ring Finger-associated (SRA) domain, two members of UHRF1 and UHRF2 (Ubiquitin-like with PHD and RING finger domains 1 and 2). Ubl, ubiquitin-like domain; TTD, tandem tudor domain; PHD, plant homeodomain finger domain; SRA, SET, and RING-associated domain.