5E7O:
reference: Perchlorate Reductase Is Distinguished by Active Site Aromatic Gate Residues., Youngblut MD, Tsai CL, Clark IC, Carlson HK, Maglaqui AP, Gau-Pan PS, Redford SA, Wong A, Tainer JA, Coates JD, J Biol Chem. 2016 Apr 22;291(17):9190-202. doi: 10.1074/jbc.M116.714618. Epub, 2016 Mar 3. PMID: 26940877

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