4CXF:
reference: The Crystal Structure of the Anti-sigma Factor CnrY in Complex with the sigma Factor CnrH Shows a New Structural Class of Anti-sigma Factors Targeting Extracytoplasmic Function sigma Factors., Maillard AP, Girard E, Ziani W, Petit-Hartlein I, Kahn R, Coves J, J Mol Biol. 2014 Apr 12. pii: S0022-2836(14)00177-6. doi:, 10.1016/j.jmb.2014.04.003. PMID: 24727125

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