5FG3:
reference: Crystal structure of translation initiation factor 5B from the crenarchaeon Aeropyrum pernix., Murakami R, Miyoshi T, Uchiumi T, Ito K, Proteins. 2016 May;84(5):712-7. doi: 10.1002/prot.25009. Epub 2016 Mar 6. PMID: 26868175

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