1ULY:
reference: Crystal structure of the PH1932 protein, a unique archaeal ArsR type winged-HTH transcription factor from Pyrococcus horikoshii OT3., Itou H, Yao M, Watanabe N, Tanaka I, Proteins. 2008 Mar;70(4):1631-4. PMID: 18076033

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