1JSX:
reference: Crystal structure of the Escherichia coli glucose-inhibited division protein B (GidB) reveals a methyltransferase fold., Romanowski MJ, Bonanno JB, Burley SK, Proteins 2002 Jun 1;47(4):563-7. PMID: 12001236

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