4W5R:
reference: Gene regulation. Structural basis for microRNA targeting., Schirle NT, Sheu-Gruttadauria J, MacRae IJ, Science. 2014 Oct 31;346(6209):608-13. doi: 10.1126/science.1258040. PMID: 25359968

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