4UX5:
reference: Structural basis of DNA recognition by PCG2 reveals a novel DNA binding mode for winged helix-turn-helix domains., Liu J, Huang J, Zhao Y, Liu H, Wang D, Yang J, Zhao W, Taylor IA, Peng YL, Nucleic Acids Res. 2014 Dec 29. pii: gku1351. PMID: 25550425

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