6CC2:
reference: Crystal Structure of Entamoeba histolytica Cdc45 Suggests a Conformational Switch that May Regulate DNA Replication., Kurniawan F, Shi K, Kurahashi K, Bielinsky AK, Aihara H, iScience. 2018 May 25;3:102-109. doi: 10.1016/j.isci.2018.04.011. PMID: 29901028

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