3DIT:
reference: Structure of Drosophila Mad MH2 domain., Hao R, Chen L, Wu JW, Wang ZX, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Nov 1;64(Pt, 11):986-90. Epub 2008 Oct 31. PMID: 18997322

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