| 2MWX: reference: The RING domain of human promyelocytic leukemia protein (PML)., Huang SY, Chang CF, Fang PJ, Naik MT, Guntert P, Shih HM, Huang TH, J Biomol NMR. 2015 Jan 28. PMID: 25627356 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).