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- 详细信息
- 文献和实验
- 技术资料
- 供应商:
江西江蓝纯生物试剂有限公司
- 库存:
43
- 克隆性:
单克隆
- 保质期:
1年
- 抗体英文名:
RNA polymerase II
- 抗体名:
RNA聚合酶II抗体
- 适应物种:
人/动物/植物
- 应用范围:
WB,ELISA等
- 浓度:
1mg/ml
- 保存条件:
-20 °
- 规格:
100ul/200ul/50ul
| 规格: | 100ul | 产品价格: | ¥1580.0 |
|---|---|---|---|
| 规格: | 200ul | 产品价格: | ¥2480.0 |
| 规格: | 50ul | 产品价格: | ¥880.0 |
英文名称 : RNA polymerase II
中文名称 : RNA聚合酶II抗体
别 名 : POLR2A; POLR2; DNA directed RNA polymerase II A; DNA-directed RNA polymerase II largest subunit; DNA-directed RNA polymerase II subunit A; RPB1_HUMAN.
研究领域 : 细胞生物 免疫学 信号转导 转录调节因子 表观遗传学
抗体来源 : Rabbit
克隆类型 : Polyclonal
交叉反应 : Human, Mouse, Rat, Dog, Pig, Cow, Horse,
产品应用 : WB=1:500-2000 ELISA=1:500-1000 IHC-P=1:400-800 IHC-F=1:400-800 IF=1:50-200 (石蜡切片需做抗原修复)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
分 子 量 : 217kDa
细胞定位 : 细胞核
性 状 : Lyophilized or Liquid
浓 度 : 1mg/ml
免 疫 原 : KLH conjugated synthetic peptide derived from human Pol II/RNA polymerase II:101-200/1970
亚 型 : IgG
纯化方法 : affinity purified by Protein A
储 存 液 : 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
保存条件 : Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
PubMed : PubMed
产品介绍 : RNA polymerase II (Pol II) is an enzyme that is composed of twelve subunits and is responsible for the transcription of protein-coding genes. Transcription initiation requires Pol II-mediated recruitment of transcription machinery to a target promoter, thereby allowing transcription to begin. The largest subunit of Pol II (referred to as RPB1 or RPB205) is a 1,840 amino acid protein that contains one C2H2-type zinc finger and a C-terminal domain comprised of several heptapeptide repeats. Although Pol II function requires the cooperation of all twelve subunits, the largest subunit conveys Pol II catalytic activity and, together with the second largest subunit, forms the active center of the Pol II enzyme. Additionally, the large subunit participates in forming the DNA-binding domain of Pol II, a groove that is necessary for transcription of the DNA template. Without proper function of the large subunit, mRNA synthesis and subsequent transcription elongation cannot occur.
Function:
DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Largest and catalytic component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Forms the polymerase active center together with the second largest subunit. Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. RPB1 is part of the core element with the central large cleft, the clamp element that moves to open and close the cleft and the jaws that are thought to grab the incoming DNA template. At the start of transcription, a single stranded DNA template strand of the promoter is positioned within the central active site cleft of Pol II. A bridging helix emanates from RPB1 and crosses the cleft near the catalytic site and is thought to promote translocation of Pol II by acting as a ratchet that moves the RNA-DNA hybrid through the active site by switching from straight to bent conformations at each step of nucleotide addition. During transcription elongation, Pol II moves on the template as the transcript elongates. Elongation is influenced by the phosphorylation status of the C-terminal domain (CTD) of Pol II largest subunit (RPB1), which serves as a platform for assembly of factors that regulate transcription initiation, elongation, termination and mRNA processing. Acts as a RNA-dependent RNA polymerase when associated with small delta antigen of Hepatitis delta virus, acting both as a replicate and transcriptase for the viral RNA circular genome.
Subunit:
Component of the RNA polymerase II (Pol II) complex consisting of 12 subunits. The phosphorylated C-terminal domain interacts with FNBP3 and SYNCRIP. Interacts with SAFB/SAFB1. Interacts with CCNL1 and MYO1C (By similarity). Interacts with CCNL2 and SFRS19. Component of a complex which is at least composed of HTATSF1/Tat-SF1, the P-TEFb complex components CDK9 and CCNT1, RNA polymerase II, SUPT5H, and NCL/nucleolin. Interacts with PAF1. Interacts (via C-terminus) with FTSJD2, CTDSP1 and SCAF8. Interacts via the phosphorylated C-terminal domain with WDR82 and with SETD1A and SETD1B only in the presence of WDR82. Interacts with ATF7IP. When phosphorylated at 'Ser-5', interacts with MEN1; the unphosphorylated form, or phosphorylated at 'Ser-2' does not interact. Interacts with DDX5.
Subcellular Location:
Nucleus.
Post-translational modifications:
Dephosphorylated by the protein phosphatase CTDSP1. [PTM] Ubiquitinated by WWP2 leading to proteasomal degradation (By similarity). [PTM] Methylated at Arg-1810 by CARM1. Methylation occurs only when the CTD is hypophosphorylated, and phosphorylation at Ser-1805 and Ser-1808 prevent methylation (in vitro). It is assumed that methylation occurs prior to phosphorylation and transcription initiation. CTD methylation may facilitate the expression of select RNAs.
Similarity:
Belongs to the RNA polymerase beta' chain family.
SWISS:
P24928
Gene ID:
5430
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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文献和实验一般是指 DNA依存性 RNA聚合酶。是催化以 DNA为模板( template)、三磷酸核糖核苷为底物、通过磷酸二酯键而聚合的合成 RNA的酶。因为在细胞内与基因 DNA的遗传信息转录为 RNA有关,所以也称转录酶。反应以下式示: n1 -n4 表示各个模板的 DNA链的胸腺嘧啶、胞嘧啶、鸟嘧啶、腺嘌呤的碱基数。通过特异的碱基配对的形成,合成具有与模板 DNA链完全互补的碱基排列的 RNA。反应是由( 1) DNA与酶的结合
后DNA仍然保持双链的结构。真核生物RNA聚合酶:真核生物的转录机制要复杂得多,有三种细胞核内的RNA聚合酶:RNA聚合酶I转录rRNA,RNA聚合酶II转录mRNA,RNA聚合酶III转录tRNA和其它小分子RNA。在RNA复制和转录中起作用。 一.模板和酶 1.模板RNA的转录合成需要DNA做模板,DNA双链中只有一股链起模板作用,指导RNA合成的一股DNA链称为模板链(template strand),与之相对的另一股链为编码链(coding strand),不对称转录
An RNA Polymerase II In Vitro Transcription System
A great deal of attention in recent years has been focused on the mechanisms governing transcription. Repression and/or activation of specific genes, or sets of genes, represents a key regulatory step in such diverse processes as cell growth











