6FT1:
reference: High-resolution crystal structures reveal a mixture of conformers of the Gly61-Asp62 peptide bond in an oxidised flavodoxin from Bacillus cereus., Gudim I, Lofstad M, van Beek W, Hersleth HP, Protein Sci. 2018 May 3. doi: 10.1002/pro.3436. PMID: 29722453

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