6BUX:
reference: Crystal structure of the catalytic domain of HIV-1 restriction factor APOBEC3G in complex with ssDNA., Maiti A, Myint W, Kanai T, Delviks-Frankenberry K, Sierra Rodriguez C, Pathak VK, Schiffer CA, Matsuo H, Nat Commun. 2018 Jun 25;9(1):2460. doi: 10.1038/s41467-018-04872-8. PMID: 29941968

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