4Q25:
reference: Crystal structure of PhoU from Pseudomonas aeruginosa, a negative regulator of the Pho regulon., Lee SJ, Park YS, Kim SJ, Lee BJ, Suh SW, J Struct Biol. 2014 Oct;188(1):22-9. doi: 10.1016/j.jsb.2014.08.010. Epub 2014, Sep 8. PMID: 25220976

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