核心酶(core enzyme)：大肠杆菌的RNA聚合酶全酶由6个亚基组成(2αββ’ωσ)(即两个α亚基、β亚基、β′亚基、ω亚基和σ亚基)，还含有两个锌原子。而无σ亚基的酶(2αββ’ω)叫核心酶。亦指DNA聚合酶Ⅲ中由α、ε、θ三种亚基组成全酶的核心酶(core enzyme)。
动物模型的研究表明这种酶在维持以往通过一系列公认行为学习得到的记忆的完整性方面起着核心的作用。
In animal models, the enzyme seems to play a central role in maintaining the integrity of long-term memories induced using a variety of well-established behavioral learning methods.
研究人员分析了突变蛋白的功能，发现它是该蛋白激发激酶作用的部分，是酶缺矢功能的核心环节。
The researchers analyzed the function of the mutant proteins, establishing that it was the "triggering" kinase segment of the protein that was central to the enzyme's defective function.
目的探讨丙型肝炎病毒（HCV）核心抗原酶联免疫诊断试剂检测早期HCV感染“窗口期”样本的可行性。
Objective To evaluate the performances of HCV core antigen(HCV-cAg)testing in comparison to HCV RNA and Anti-HCV detection during the preseroconversion period.
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