Anti-RNA polymerase II CTD repeat YSPTSPS 抗体 [CTD4H8] - BSA and Azide free (ab270284)
Key features and details
- Mouse monoclonal [CTD4H8] to RNA polymerase II CTD repeat YSPTSPS - BSA and Azide free
- Suitable for: IHC-P, WB
- Reacts with: Mouse, Human
- Isotype: IgG1
製品の概要
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製品名
Anti-RNA polymerase II CTD repeat YSPTSPS antibody [CTD4H8] - BSA and Azide free
RNA polymerase II CTD repeat YSPTSPS 一次抗体 製品一覧 -
製品の詳細
Mouse monoclonal [CTD4H8] to RNA polymerase II CTD repeat YSPTSPS - BSA and Azide free -
由来種
Mouse -
アプリケーション
適用あり: IHC-P, WBmore details -
種交差性
交差種: Mouse, Human -
免疫原
Synthetic peptide corresponding to RNA polymerase II CTD repeat YSPTSPS. Ten repeats of synthetic peptide YSPTSPS using chemically synthesized phospho-Ser5.
Database link: P24928 -
ポジティブ・コントロール
- IHC-P: Human breast carcinoma tissue. WB: HAP1, K562, PC3, HepG2 and NIH/3T3 lysate.
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特記事項
ab270284 is a carrier free version of ab270250.
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrier-free buffer and high concentration allow for increased conjugation efficiency.
This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.
If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As
製品の特性
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製品の状態
Liquid -
保存方法
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle. -
バッファー
pH: 7.2
Constituent: PBS -
キャリア・フリー
はい -
Concentration information loading...
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精製度
Protein A/G purified -
特記事項(精製)
Purified from bioreactor concentrate. -
ポリ/モノ
モノクローナル -
クローン名
CTD4H8 -
アイソタイプ
IgG1 -
軽鎖の種類
kappa -
研究分野
関連製品
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Alternative Versions
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Compatible Secondaries
アプリケーション
The Abpromise guarantee
Abpromise保証は、 次のテスト済みアプリケーションにおけるab270284の使用に適用されます
アプリケーションノートには、推奨の開始希釈率がありますが、適切な希釈率につきましてはご検討ください。
アプリケーション | Abreviews | 特記事項 |
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IHC-P |
Use a concentration of 1 - 2 µg/ml. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.
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WB |
Use a concentration of 1 - 2 µg/ml.
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特記事項 |
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IHC-P
Use a concentration of 1 - 2 µg/ml. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
WB
Use a concentration of 1 - 2 µg/ml. |
ターゲット情報
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機能
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 an 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. -
配列類似性
Belongs to the RNA polymerase beta' chain family. -
ドメイン
The C-terminal domain (CTD) serves as a platform for assembly of factors that regulate transcription initiation, elongation, termination and mRNA processing. -
翻訳後修飾
The tandem heptapeptide repeats in the C-terminal domain (CTD) can be highly phosphorylated. The phosphorylation activates Pol II. Phosphorylation occurs mainly at residues 'Ser-2' and 'Ser-5' of the heptapeptide repeat and is mediated, at least, by CDK7 and CDK9. CDK7 phosphorylation of POLR2A associated with DNA promotes transcription initiation by triggering dissociation from DNA. Phosphorylation also takes place at 'Ser-7' of the heptapeptide repeat, which is required for efficient transcription of snRNA genes and processing of the transcripts. The phosphorylation state is believed to result from the balanced action of site-specific CTD kinases and phosphatases, and a 'CTD code' that specifies the position of Pol II within the transcription cycle has been proposed. Dephosphorylated by the protein phosphatase CTDSP1.
Among tandem heptapeptide repeats of the C-terminal domain (CTD) some do not match the Y-S-P-T-S-P-S consensus, the seventh serine residue 'Ser-7' being replaced by a lysine. 'Lys-7' in these non-consensus heptapeptide repeats can be alternatively acetylated, methylated and dimethylated. EP300 is one of the enzyme able to acetylate 'Lys-7'. Acetylation at 'Lys-7' of non-consensus heptapeptide repeats is associated with 'Ser-2' phosphorylation and active transcription. It may regulate initiation or early elongation steps of transcription specially for inducible genes.
Methylated at Arg-1810 prior to transcription initiation when the CTD is hypophosphorylated, phosphorylation at Ser-1805 and Ser-1808 preventing this methylation. Symmetrically or asymmetrically dimethylated at Arg-1810 by PRMT5 and CARM1 respectively. Symmetric or asymmetric dimethylation modulates interactions with CTD-binding proteins like SMN1/SMN2 and TDRD3. SMN1/SMN2 interacts preferentially with the symmetrically dimethylated form while TDRD3 interacts with the asymmetric form. Through the recruitment of SMN1/SMN2, symmetric dimethylation is required for resolving RNA-DNA hybrids created by RNA polymerase II, that form R-loop in transcription terminal regions, an important step in proper transcription termination. CTD dimethylation may also facilitate the expression of select RNAs. Among tandem heptapeptide repeats of the C-terminal domain (CTD) some do not match the Y-S-P-T-S-P-S consensus, the seventh serine residue 'Ser-7' being replaced by a lysine. 'Lys-7' in these non-consensus heptapeptide repeats can be alternatively acetylated, methylated and dimethylated. Methylation occurs in the earliest transcription stages and precedes or is concomitant to 'Ser-5' and 'Ser-7' phosphorylation.
Ubiquitinated by WWP2 leading to proteasomal degradation (By similarity). Following UV treatment, the elongating form of RNA polymerase II (RNA pol IIo) is ubiquitinated UV damage sites without leading to degradation: ubiquitination is facilitated by KIAA1530/UVSSA and promotes RNA pol IIo backtracking to allow access to the nucleotide excision repair machinery. -
細胞内局在
Nucleus. - Information by UniProt
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参照データベース
- Entrez Gene: 5430 Human
- Entrez Gene: 20020 Mouse
- Omim: 180660 Human
- SwissProt: P24928 Human
- SwissProt: P08775 Mouse
- Unigene: 270017 Human
- Unigene: 16533 Mouse
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別名
- DNA directed RNA polymerase II A antibody
- DNA-directed RNA polymerase II largest subunit RNA polymerase II 220 kd subunit antibody
- DNA-directed RNA polymerase II subunit A antibody
see all
画像
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All lanes : Anti-RNA polymerase II CTD repeat YSPTSPS antibody [CTD4H8] (ab270250) at 2 µg/ml
Lane 1 : HAP1 (Human cell line) lysate
Lane 2 : K562 (Human chronic myelogenous leukemia cell line from bone marrow) lysate
Lane 3 : PC3 (Human prostate adenocarcinoma cell line) lysate
Lane 4 : HepG2 (Human liver hepatocellular carcinoma cell line) lysate
Lane 5 : NIH/3T3 (Mouse embryo fibroblast cell line) lysateThis data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA and sodium azide (ab270250).
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Formalin-fixed, paraffin-embedded human breast carcinoma stained for RNA polymerase II CTD repeat YSPTSPS using ab270250 at 2 µg/ml in immunohistochemical analysis.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA and sodium azide (ab270250).
プロトコール
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
データシートおよび資料
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Datasheet download
参考文献 (0)
ab270284 は論文での使用が確認できていません。