Non disponible en dehors du Royaume-Uni et de l'Irlande

Analysis Note

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

Application

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 CategoryEpigenetics & Nuclear FunctionEpigenetics & Nuclear Function

Use Anti-RNA polymerase II subunit B1 (phospho-CTD Ser-5) Antibody, clone 3E8 (Rat Monoclonal Antibody) validated in WB, ELISA, ChIP to detect RNA polymerase II subunit B1 (phospho-CTD Ser-5).

Research Sub CategoryTranscription FactorsRNA Metabolism & Binding Proteins

Disclaimer

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.

General description

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 R16;Ser-2' and R16;Ser-5' of the heptapeptide repeat are phosphorylated. Ser-7 is phosphorylated before initiation of transcription at promoter regions.

Immunogen

Epitope: Ser5

Ovalbumin-conjugated linear peptide corrresponding to human RNA polymerase subunit B1 CTD phosphorylated at Ser5.

Other Notes

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

Physical form

Purified rat monoclonal IgG2aκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Protein G Purified

Format: Purified

Quality

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

Western Blot Analysis: 1 µg/ml of this antibody detected RNA polymerase II CTD on 10 µg of γ-PPase untreated and treated NIH/3T3 cell lysates.

Specificity

This antibody recognizes RNA polymerase II subunit B1 at the CTD when phosphorylated at Ser5.

Storage and Stability

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

Target description

~ 220 kDa