3ONR:
reference: Crystal structure of the calcium chelating immunodominant antigen, calcium dodecin (Rv0379), from Mycobacterium tuberculosis with a unique calcium-binding site., Arockiasamy A, Aggarwal A, Savva CG, Holzenburg A, Sacchettini JC, Protein Sci. 2011 Mar 2. doi: 10.1002/pro.607. PMID: 21370306

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