大學分子生物學：dna的復制32(2)-在線瀏覽
2025-03-02 18:52本頁面
【正文】 核心酶 Pol III Pol III’ Pol III* γ 復 合 體 β sliding clamp 二、解螺旋酶 (helicase)： A helicase is an enzyme that uses energy provided by NTP hydrolysis to separate the strands of a nucleic acid duplex 三、 SSB蛋白（單鏈結合蛋白） The singlestrand binding protein (SSB) attaches to singlestranded DNA, thereby preventing the DNA from forming a duplex ?防止單鏈復性 ?維持單鏈剛性狀態(tài) ?避免單鏈降解 ?The SSB binds as a monomer, but typically in a cooperative manner in which the binding of one protein molecule makes it much easier for another to bind 四、引發(fā)酶 (primase): The primase is a type of RNA polymerase that synthesizes short segments of RNA that will be used as primers for DNA replication. 為什么 DNA的合成需要 RNA引物？ 五、旋轉酶 (gyrase )： a
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