6D43:
reference: Characterization of human triosephosphate isomerase S-nitrosylation., Romero JM, Carrizo ME, Curtino JA, Nitric Oxide. 2018 Apr 17;77:26-34. doi: 10.1016/j.niox.2018.04.004. PMID: 29678765

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