6TJR:
reference: Structural and spectroscopic characterization of a HdrA-like subunit from Hyphomicrobium denitrificans., Ernst C, Kayastha K, Koch T, Venceslau SS, Pereira IAC, Demmer U, Ermler U, Dahl C, FEBS J. 2020 Aug 4. doi: 10.1111/febs.15505. PMID: 32750208

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