2BWK:
reference: Structure of murine angiogenin: features of the substrate- and cell-binding regions and prospects for inhibitor-binding studies., Holloway DE, Chavali GB, Hares MC, Subramanian V, Acharya KR, Acta Crystallogr D Biol Crystallogr. 2005 Dec;61(Pt 12):1568-78. Epub 2005, Nov 19. PMID: 16301790

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