The replication focus targeting sequence (RFTS) domain is a DNA-competitive inhibitor of Dnmt1.
Syeda, F., Fagan, R.L., Wean, M., Avvakumov, G.V., Walker, J.R., Xue, S., Dhe-Paganon, S., Brenner, C.(2011) J Biol Chem 286: 15344-15351
- PubMed: 21389349 
- DOI: 10.1074/jbc.M110.209882
- Primary Citation of Related Structures:  
3EPZ - PubMed Abstract: 
Dnmt1 (DNA methyltransferase 1) is the principal enzyme responsible for maintenance of cytosine methylation at CpG dinucleotides in the mammalian genome. The N-terminal replication focus targeting sequence (RFTS) domain of Dnmt1 has been implicated in subcellular localization, protein association, and catalytic function ...