2K1J:
reference: Solution structure and NMR characterization of the binding to methylated histone tails of the plant homeodomain finger of the tumour suppressor ING4., Palacios A, Garcia P, Padro D, Lopez-Hernandez E, Martin I, Blanco FJ, FEBS Lett. 2006 Dec 22;580(30):6903-8. Epub 2006 Nov 30. PMID: 17157298

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