6N4O:
reference: Beyond the seed: structural basis for supplementary microRNA targeting by human Argonaute2., Sheu-Gruttadauria J, Xiao Y, Gebert LF, MacRae IJ, EMBO J. 2019 Apr 26. pii: embj.2018101153. doi: 10.15252/embj.2018101153. PMID: 31028083

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