5TSN:
reference: Norovirus RNA-dependent RNA polymerase: A computational study of metal-binding preferences., Shaik MM, Bhattacharjee N, Feliks M, Ng KK, Field MJ, Proteins. 2017 Apr 6. doi: 10.1002/prot.25304. PMID: 28383118

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