5NL2:
reference: Structural basis for anion conduction in the calcium-activated chloride channel TMEM16A., Paulino C, Neldner Y, Lam AK, Kalienkova V, Brunner JD, Schenck S, Dutzler R, Elife. 2017 May 31;6. pii: e26232. doi: 10.7554/eLife.26232. PMID: 28561733

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