2ZFG:
reference: Crystal structures of the OmpF porin: function in a colicin translocon., Yamashita E, Zhalnina MV, Zakharov SD, Sharma O, Cramer WA, EMBO J. 2008 Jul 17. PMID: 18636093

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