1ZNC:
reference: Crystal structure of the secretory form of membrane-associated human carbonic anhydrase IV at 2.8-A resolution., Stams T, Nair SK, Okuyama T, Waheed A, Sly WS, Christianson DW, Proc Natl Acad Sci U S A 1996 Nov 26;93(24):13589-94. PMID: 8942978

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