3UV0:
reference: Dimerization, but not phosphothreonine binding, is conserved between the forkhead-associated domains of Drosophila MU2 and human MDC1., Luo S, Ye K, FEBS Lett. 2012 Feb 17;586(4):344-9. Epub 2012 Jan 21. PMID: 22273583

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