| 5ZFR: reference: Structural insights into the mechanism of Type IVa pilus extension and retraction ATPase motors., Solanki V, Kapoor S, Thakur KG, FEBS J. 2018 Sep;285(18):3402-3421. doi: 10.1111/febs.14619. Epub 2018 Aug 18. PMID: 30066435 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).