6F9G:
reference: Structural basis for polyamine binding at the dCACHE domain of the McpU chemoreceptor from Pseudomonas putida., Gavira JA, Ortega A, Martin-Mora D, Conejero-Muriel MT, Corral-Lugo A, Morel B, Matilla MA, Krell T, J Mol Biol. 2018 May 11. pii: S0022-2836(18)30403-0. doi:, 10.1016/j.jmb.2018.05.008. PMID: 29758259

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