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04-1570

Sigma-Aldrich

Anti-RNA polymerase II subunit B1 (phospho-CTD Ser-7) Antibody, clone 4E12

clone 4E12, from rat

Synonyme(s) :

DNA-directed RNA polymerase II A, DNA-directed RNA polymerase II largest subunit, RNA polymerase II 220 kd subunit, DNA-directed RNA polymerase II subunit A, DNA-directed RNA polymerase III largest subunit, RNA polymerase II subunit B1, RNA-directed RNA

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About This Item

Code UNSPSC :
12352203
eCl@ss :
32160702
Nomenclature NACRES :
NA.41

Source biologique

rat

Niveau de qualité

Forme d'anticorps

purified immunoglobulin

Type de produit anticorps

primary antibodies

Clone

4E12, monoclonal

Espèces réactives

mouse

Réactivité de l'espèce (prédite par homologie)

human (based on 100% sequence homology)

Technique(s)

ChIP: suitable
ELISA: suitable
western blot: suitable

Isotype

IgG1κ

Numéro d'accès NCBI

Numéro d'accès UniProt

Conditions d'expédition

wet ice

Modification post-traductionnelle de la cible

phosphorylation (pSer7)

Informations sur le gène

human ... POLR2B(5431)

Description générale

RNA polymerase II subunit B1 (RPB1) is the largest subunit of the RNA polymerase II complex. As a holoenzyme RNA polymerase II catalyzes transcription of eukaryotic DNA into RNA using the four ribonucleoside triphosphates as substrates. The RBP1 subunit, in combination with other polymerase subunits, forms a large central cleft that maintains contact between the active site of the enzyme, the DNA template, and the nascent RNA transcript. This subunit also contains a carboxy terminal domain (CTD) consisting of tandem heptapeptide repeats. Phosphorylation activates the RNA polymerase II beta subunit, allowing it to serve as an assembly platform for additional subunits that modulate initiation, elongation, termination and mRNA processing. In actively transcribing RNA polymerase ‘Ser-2’ and ‘Ser-5’ of the heptapeptide repeat are phosphorylated. Ser-7 is phosphorylated before initiation of transcription at promoter regions.

Spécificité

This antibody recognizes RNA polymerase II subunit B1 at the CTD when phosphorylated at Ser7.

Immunogène

Epitope: Ser7
Ovalbumin-conjugated linear peptide corrresponding to human RNA polymerase subunit B1 CTD phosphorylated at Ser7.

Application

Anti-RNA polymerase II subunit B1 (phospho-CTD Ser-7) Antibody, clone 4E12 is a Rat monoclonal antibody for detection of RNA polymerase II subunit B1 (phospho-CTD Ser-7) has been validated in WB, ELISA.
Chromatin Immunoprecipitation Analysis: A representative lot was used by an independent laboratory in ChIP. (Chapman, R., et al. (2007). Science. 318(5857):1780 -1782.)
Research Category
Epigenetics & Nuclear Function

Epigenetics & Nuclear Function
Research Sub Category
Transcription Factors

RNA Metabolism & Binding Proteins

Qualité

Evaluated by Western Blot in γ-PPase untreated and treated NIH/3T3 cell lysates.

Western Blot Analysis: 0.25 µg/ml of this antibody detected RNA polymerase II CTD on 10 µg of γ-PPase untreated and treated NIH/3T3 cell lysates.

Description de la cible

~ 220 kDa

Forme physique

Format: Purified
Protein G Purified
Purified rat monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Stockage et stabilité

Stable for 1 year at 2-8°C from date of receipt.

Remarque sur l'analyse

Control
γ-protein phosphatase (γ-Ppase) untreated and treated NIH/3T3 cell lysates

Autres remarques

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Clause de non-responsabilité

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Amanda Balboni Iniguez et al.
Cancer cell, 33(2), 202-216 (2018-01-24)
Many cancer types are driven by oncogenic transcription factors that have been difficult to drug. Transcriptional inhibitors, however, may offer inroads into targeting these cancers. Through chemical genomics screening, we identified that Ewing sarcoma is a disease with preferential sensitivity
Emily Brookes et al.
Cell stem cell, 10(2), 157-170 (2012-02-07)
Polycomb repressor complexes (PRCs) are important chromatin modifiers fundamentally implicated in pluripotency and cancer. Polycomb silencing in embryonic stem cells (ESCs) can be accompanied by active chromatin and primed RNA polymerase II (RNAPII), but the relationship between PRCs and RNAPII
Huishan Zeng et al.
Cell death & disease, 12(11), 1048-1048 (2021-11-07)
Metastasis is one of most lethal causes that confer a poor prognosis of patients with esophageal squamous cell carcinoma (ESCC), whereas there is no available target drug for metastatic ESCC currently. In this study, we aimed to determine whether the
Kaiwei Liang et al.
Molecular and cellular biology, 35(6), 928-938 (2015-01-07)
Cyclin-dependent kinase 9 (CDK9) and CDK12 have each been demonstrated to phosphorylate the RNA polymerase II C-terminal domain (CTD) at serine 2 of the heptad repeat, both in vitro and in vivo. CDK9, as part of P-TEFb and the super
Mei Zeng et al.
eLife, 7 (2018-11-14)
High-grade serous ovarian cancer is characterized by extensive copy number alterations, among which the amplification of MYC oncogene occurs in nearly half of tumors. We demonstrate that ovarian cancer cells highly depend on MYC for maintaining their oncogenic growth, indicating

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