5WY1:
reference: Conserved threonine 1505 in the catalytic domain stabilizes mouse DNA methyltransferase 1., Kanada K, Takeshita K, Suetake I, Tajima S, Nakagawa A, J Biochem. 2017 Mar 24. doi: 10.1093/jb/mvx024. PMID: 28369487

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).