| 2O3O: reference: The Crystal Structure of Bacillus subtilis YycI Reveals a Common Fold for Two Members of an Unusual Class of Sensor Histidine Kinase Regulatory Proteins., Santelli E, Liddington RC, Mohan MA, Hoch JA, Szurmant H, J Bacteriol. 2007 Apr;189(8):3290-5. Epub 2007 Feb 16. PMID: 17307848 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).