3OGO:
reference: Structural and thermodynamic analysis of the GFP:GFP-nanobody complex., Kubala MH, Kovtun O, Alexandrov K, Collins BM, Protein Sci. 2010 Dec;19(12):2389-401. doi: 10.1002/pro.519. PMID: 20945358

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