1Q1H:
reference: An extended winged helix domain in general transcription factor E/IIE alpha., Meinhart A, Blobel J, Cramer P, J Biol Chem 2003 Nov 28;278(48):48267-74. Epub 2003 Sep 17. PMID: 13679366

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