1NP6:
reference: Insight into the role of escherichia coli MobB in molybdenum cofactor biosynthesis based on the high-resolution crystal structure., McLuskey K, Harrison JA, Schuettelkopf AW, Boxer DH, Hunter WN, J Biol Chem 2003 Apr 7;. PMID: 12682065

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