4GH7:
reference: Combinatorial Design of an Anticalin Directed against the Extra-Domain B for the Specific Targeting of Oncofetal Fibronectin., Gebauer M, Schiefner A, Matschiner G, Skerra A, J Mol Biol. 2012 Dec 10. pii: S0022-2836(12)00918-7. doi:, 10.1016/j.jmb.2012.12.004. PMID: 23238252

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