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- 详细信息
- 文献和实验
- 技术资料
- 克隆性:
单克隆
- 抗体英文名:
Anti-TP2A/TOP2 alpha
- 抗体名:
DNA拓普西异构酶ⅡA抗体
DNA拓普西异构酶ⅡA抗体产品标准
浓缩液(1mg/1ml) 亲和纯化抗体
产品应用
WB=1:100-500 Elisa =1:200-1000 IP=1:20-100 IHC=1:100-500 (石蜡切片需做抗原修复)
DNA拓普西异构酶ⅡA抗体产品介绍
This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This nuclear enzyme is involved in processes such as chromosome condensation, chromatid separation, and the relief of torsional stress that occurs during DNA transcription and replication. It catalyzes the transient breaking and rejoining of two strands of duplex DNA which allows the strands to pass through one another, thus altering the topology of DNA. Two forms of this enzyme exist as likely products of a gene duplication event. The gene encoding this form, alpha, is localized to chromsome 17 and the beta gene is localized to chromosome 3. The gene encoding this enzyme functions as the target for several anticancer agents and a variety of mutations in this gene have been associated with the development of drug resistance. Reduced activity of this enzyme may also play a role in ataxia-telangiectasia.
mol wt:174kDa
Other Aliases:
Topoisomerase Ⅱalpha; DNA topoisomerase II, alpha isozyme; DNA topoisomerase 2 alpha; DNA topoisomerase II 170 kD; DNA Topoisomerase2; TOP2; TOP2A; TopII alpha; Topo II alpha; Topoisomerase DNA II alpha 170kDa; Topoisomerase II alpha 170 kDa; TP2A; TPⅡA
mol wt:174kDa
Other Aliases:
Topoisomerase Ⅱalpha; DNA topoisomerase II, alpha isozyme; DNA topoisomerase 2 alpha; DNA topoisomerase II 170 kD; DNA Topoisomerase2; TOP2; TOP2A; TopII alpha; Topo II alpha; Topoisomerase DNA II alpha 170kDa; Topoisomerase II alpha 170 kDa; TP2A; TPⅡA
DNA拓普西异构酶ⅡA抗体
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文献和实验相关实验
为催化 DNA拓扑学异构体相互转变的酶之总称。催化 DNA链断开和结合的偶联反应,为了分析体外反应机制,用环状 DNA为底物。在闭环状双链 DNA的拓扑学转变中,要暂时的将 DNA的一个链或两个链切断,根据异构体化的方式而分为二个型。切断一个链而改变拓扑结构的称为Ⅰ型拓扑异构酶( top- oisomeraseⅠ),通过切断二个链来进行的称为Ⅱ型拓扑异构酶( topoisomeraseⅡ)。属于Ⅰ型的拓扑异构酶,有大肠杆菌的ω蛋白(ω -protein,由分子量 11万
,而在生物体内它们可能参与了DNA的复制与转录。在DNA复制时,复制叉行进的前方DNA分子部分产生有正超螺旋,拓扑酶可松驰超螺旋,有利于复制叉的前进及DNA的合成。DNA复制完成后,拓扑酶又可将DNA分子引入超螺旋,使DNA缠绕、折叠,压缩以形成染色质。DNA拓扑异构酶有Ⅰ型和Ⅱ型,它们广泛存在于原核生物及真核生物中。 表16-3 大肠杆菌和真核生物中的拓扑异构酶� 类型 作用 对超螺旋的作用
因子、DNA 拓扑异构酶和 RNA 聚合酶Ⅱ等。DNA-PK 可发生自主磷酸化,其催化亚基和 Ku 蛋白都依赖于 DNA 和 ATP 而磷酸化.
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DNA拓普西异构酶ⅡA抗体
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