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1)  DNA-binding activity
DNA结合活性
1.
Gel mobility shift assay was employed to study the relationship between Ca2+-CaM and DNA-binding activity of heat shock transcription factor (HSF).
本课题以[г-~(32)P]-ATP标记的HSE为探针,通过凝胶阻滞分析研究Ca~(2+)和CaM与HSF的DNA结合活性的关系。
2.
However, the copper coordination (or mercury/cadmium) results in disrupting the p53 conformation and losing the DNA-binding activity.
突变的p53失去了DNA结合活性,导致不能激活下游靶基因转录。
3.
To locate the Mg~(2+) binding site in p53DBD and investigate the mechanism of how the metal ions affect its DNA-binding activity,we performed MD calculations on the apoDBD (zinc-free DBD),p53DBD-Zn~(2+) complex and p53DBD-Mg~(2+) complex.
最近的研究发现镁离子也可以与p53DBD结合,并且会影响其DNA结合活性
2)  DNA binding activity
DNA结合活性
1.
Effects of CPNE5 on DNA binding activity of NF-κB were studied by electrophoretic mobility shift Assay(EMSA).
结论:CPNE5通过抑制NF-κB的DNA结合活性抑制TNF-α诱导的NF-κB转录激活活性。
3)  DNA-binding
DNA结合特性
1.
Testing the property for DNA-binding of human telomerase by the gel mobility shift assay;
凝胶迁移阻滞法分析人类端粒酶的DNA结合特性
4)  DNA binding domain
DNA结合性结构域
5)  Binding activity
结合活性
1.
Objective To investigate the dynamic expression of hypoxia-inducible factor 1α binding activity and protein levels in pulmonary arteries of rats with hypoxia-induced pulmonary hypertension.
目的研究HIF-1α结合活性及蛋白含量的表达变化在缺氧性肺动脉高压(HPH)大鼠中的作用和意义。
2.
After amplified in HEK 293A cells, the virus was purified by CsCl density gradient centrifugation and transfected to primary cultured rat cardiomyocyte cells, the expression of hMYH was detected by western blotting, nicking activity and binding activity were detected using nicking assay and .
构建携带hMYHcDNA的重组腺病毒表达载体,制备重组腺病毒,并在原代培养的大鼠心肌细胞中得到了表达,表达的hMYH蛋白具有结合并切割A∶8-OXO-G碱基错配的糖苷酶活性,对A∶G和A∶C错配具有较弱的结合活性和切割活性。
6)  DNA-binding transcriptional activator MarA
DNA结合转录激活蛋白MarA
1.
To predict the secondary structure and B cell epitopes for DNA-binding transcriptional activator MarA of Shigella flexneri 2a,the secondary structure of DNA-binding transcriptional activator protein MarA was predicted by the methods of Gamier-Robson,Chou-Fasman and Kamplus-Schulz based on Shigella flexneri 2a genome,and hydrophilicity.
f2a)的基因组序列为材料,采用Gamier-Robson法、Chou-Fasman法和Kamplus-Schulz法预测了其DNA结合转录激活蛋白MarA的二级结构,用Kyte-Doolittle法对结构蛋白的亲水性进行了分析,用Emini法预测了蛋白的表面可能性,以Jameson-Wolf法预测了蛋白的抗原指数,然后综合评价了福氏2a志贺菌转录激活蛋白MarA的B细胞抗原表位。
补充资料:DNA结合蛋白
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性质: 又称螺旋失稳蛋白,DNA解链蛋白,单链DNA结合蛋白。它是解链酶(unwinding enzyme)类中的一种类型,发现于原核生物的大肠杆菌细胞内,由相同亚基组成的四聚体,分子量8×104,与单键DNA亲和力极大,与双链DNA结合力较差。因此,当DNA发生暂时性熔化时,它与DNA单链区结合而促使反应偏向单链的形成,使DNA在大大低于Tm(解链温度)的温度下发生双链的分离,双螺旋则在复制叉的前方分开,并在复制叉处稳定单链结构,阻止再形成双螺旋。DBP与单链DNA的结合还显示出如下协同效应,即第二个DBP分子的结合能力比第一个要大103倍之多,这一结合可以影响某些其他蛋白质或酶与该单链DNA结合和识别作用。如DNA-DBP复合物能保护DNA免受核酸酶水解;也可抑制RNA聚合酶的作用,从而防止复制和转录同时在一段DNA上发生。虽然在真核细胞中也可分离到DBP,但所得的DBP和单链的DNA结合时无协同效应,与双链的DNA则具有一定的结合力,并且又不能促使变性DNA复制。真核生物的DBP的作用方式是,DBP先与双链DNA结合,并使之熔化。

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