1ETG:
reference: Alpha helix-RNA major groove recognition in an HIV-1 rev peptide-RRE RNA complex., Battiste JL, Mao H, Rao NS, Tan R, Muhandiram DR, Kay LE, Frankel AD, Williamson JR, Science 1996 Sep 13;273(5281):1547-51. PMID: 8703216

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