| 1FT9: reference: Structure of the CO sensing transcription activator CooA., Lanzilotta WN, Schuller DJ, Thorsteinsson MV, Kerby RL, Roberts GP, Poulos TL, Nat Struct Biol 2000 Oct;7(10):876-80. PMID: 11017196 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).