4HUZ:
reference: Structural characterization of 2,6-dichloro-p-hydroquinone 1,2-dioxygenase (PcpA) from Sphingobium chlorophenolicum, a new type of aromatic ring-cleavage enzyme., Hayes RP, Green AR, Nissen MS, Lewis KM, Xun L, Kang C, Mol Microbiol. 2013 Mar 14. doi: 10.1111/mmi.12204. PMID: 23489289

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