3FXU:
reference: Structural studies on the full-length LysR-type regulator TsaR from Comamonas testosteroni T-2 reveal a novel open conformation of the tetrameric LTTR fold., Monferrer D, Tralau T, Kertesz MA, Dix I, Sola M, Uson I, Mol Microbiol. 2010 Jan 5. PMID: 20059681

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