5K52:
reference: Crystal structures of aldehyde deformylating oxygenase from Limnothrix sp. KNUA012 and Oscillatoria sp. KNUA011., Park AK, Kim IS, Jeon BW, Roh SJ, Ryu MY, Baek HR, Jo SW, Kim YS, Park H, Lee JH, Yoon HS, Kim HW, Biochem Biophys Res Commun. 2016 Aug 26;477(3):395-400. doi:, 10.1016/j.bbrc.2016.06.090. Epub 2016 Jun 18. PMID: 27329814

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