| 1H4N: reference: Histidine --> carboxamide ligand substitutions in the zinc binding site of carbonic anhydrase II alter metal coordination geometry but retain catalytic activity., Lesburg CA, Huang C, Christianson DW, Fierke CA, Biochemistry 1997 Dec 16;36(50):15780-91. PMID: 9398308 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).