4FMO:
reference: Structure of the MutLalpha C-terminal domain reveals how Mlh1 contributes to Pms1 endonuclease site., Gueneau E, Dherin C, Legrand P, Tellier-Lebegue C, Gilquin B, Bonnesoeur P, Londino F, Quemener C, Le Du MH, Marquez JA, Moutiez M, Gondry M, Boiteux S, Charbonnier JB, Nat Struct Mol Biol. 2013 Apr;20(4):461-8. doi: 10.1038/nsmb.2511. Epub 2013 Feb , 24. PMID: 23435383

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