1BRO:
reference: The metal-ion-free oxidoreductase from Streptomyces aureofaciens has an alpha/beta hydrolase fold., Hecht HJ, Sobek H, Haag T, Pfeifer O, van Pee KH, Nat Struct Biol 1994 Aug;1(8):532-7. PMID: 7664081

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