3E0G:
reference: Structural organization of a full-length gp130/LIF-R cytokine receptor transmembrane complex., Skiniotis G, Lupardus PJ, Martick M, Walz T, Garcia KC, Mol Cell. 2008 Sep 5;31(5):737-48. PMID: 18775332

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