3EF4:
reference: Atomic resolution structure of pseudoazurin from the methylotrophic denitrifying bacterium Hyphomicrobium denitrificans: structural insights into its spectroscopic properties., Hira D, Nojiri M, Suzuki S, Acta Crystallogr D Biol Crystallogr. 2009 Jan;65(Pt 1):85-92. Epub 2008, Dec 18. PMID: 19153470

This OCA Structure page
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