4PK2:
reference: Molecular basis for age-dependent microtubule acetylation by tubulin acetyltransferase., Szyk A, Deaconescu AM, Spector J, Goodman B, Valenstein ML, Ziolkowska NE, Kormendi V, Grigorieff N, Roll-Mecak A, Cell. 2014 Jun 5;157(6):1405-15. doi: 10.1016/j.cell.2014.03.061. PMID: 24906155

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