3V9R:
reference: Saccharomyces Cerevisiae MHF Complex Structurally Resembles the Histones (H3-H4)(2) Heterotetramer and Functions as a Heterotetramer., Yang H, Zhang T, Tao Y, Wu L, Li HT, Zhou JQ, Zhong C, Ding J, Structure. 2012 Feb 8;20(2):364-70. PMID: 22325783

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