3DMF:
reference: Crystal structure of the thermus thermophilus 16S rRNA methyltransferase RsmC in complex with cofactor and substrate guanosine., Demirci H, Gregory ST, Dahlberg AE, Jogl G, J Biol Chem. 2008 Jul 30. PMID: 18667428

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