1SWU:
reference: Atomic resolution structure of biotin-free Tyr43Phe streptavidin: what is in the binding site?, Freitag S, Le Trong I, Klumb LA, Stayton PS, Stenkamp RE, Acta Crystallogr D Biol Crystallogr 1999 Jun;55 ( Pt 6):1118-26. PMID: 10329773

This OCA Structure page
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