5ZTH:
reference: Unveiling the structural features that determine the dual methyltransferase activities of Streptococcus pneumoniae RlmCD., Jiang Y, Yu H, Li F, Cheng L, Zhu L, Shi Y, Gong Q, PLoS Pathog. 2018 Nov 2;14(11):e1007379. doi: 10.1371/journal.ppat.1007379. PMID: 30388185

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