5VDF:
reference: The crystal structures of a copper-bound metallochaperone from Saccharomyces cerevisiae., Lee M, Cooray NDG, Maher MJ, J Inorg Biochem. 2017 Dec;177:368-374. doi: 10.1016/j.jinorgbio.2017.08.009. Epub, 2017 Aug 24. PMID: 28865724

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