1NY6:
reference: Regulation of the transcriptional activator NtrC1: structural studies of the regulatory and AAA+ ATPase domains., Lee SY, De La Torre A, Yan D, Kustu S, Nixon BT, Wemmer DE, Genes Dev 2003 Oct 15;17(20):2552-63. PMID: 14561776

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