3O0Q:
reference: Structural basis for adenosylcobalamin activation in AdoCbl-dependent ribonucleotide reductases., Larsson KM, Logan DT, Nordlund P, ACS Chem Biol. 2010 Jul 30. PMID: 20672854

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