2MG4:
reference: Computational design and experimental verification of a symmetric protein homodimer., Mou Y, Huang PS, Hsu FC, Huang SJ, Mayo SL, Proc Natl Acad Sci U S A. 2015 Aug 25;112(34):10714-9. doi:, 10.1073/pnas.1505072112. Epub 2015 Aug 12. PMID: 26269568

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