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古菌DNA复制起始的关键调控:UBP蛋白与ucm元件的结构功能解析
本研究揭示了古菌DNA复制起始的新机制,发现古菌染色体组织蛋白UBP通过特异性结合复制起点中的ucm序列元件,与MCM解旋酶互作并促进其从复制起始位点的释放。该研究首次阐明了古菌中类核相关蛋白在复制起始中的调控作用,为理解生命三域DNA复制机制的演化 ...
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