4UF1:
reference: Structural basis of Deerpox virus-mediated inhibition of apoptosis., Burton DR, Caria S, Marshall B, Barry M, Kvansakul M, Acta Crystallogr D Biol Crystallogr. 2015 Aug 1;71(Pt 8):1593-603. doi:, 10.1107/S1399004715009402. Epub 2015 Jul 28. PMID: 26249341

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