04-1571-I

Anti-RNA polymerase II subunit B1 (phospho CTD Ser-2), clone 3E10 (rat monoclonal).

culture supernatant, clone 3E10, from rat

• Synonym(s): DNA-directed RNA polymerase II subunit RPB1, RNA polymerase II subunit B1, DNA-directed RNA polymerase II subunit A, DNA-directed RNA polymerase III largest subunit, RNA-directed RNA polymerase II subunit RPB1
• UNSPSC Code: 12352203
• eCl@ss: 32160702
• NACRES: NA.41

Properties

• biological source: rat
• Quality Level: 100
• antibody form: culture supernatant
• antibody product type: primary antibodies
• clone: 3E10, monoclonal
• species reactivity: mouse
• species reactivity (predicted by homology): human (immunogen homology)
• technique(s): ChIP: suitable; ELISA: suitable; western blot: suitable
• isotype: IgG1κ
• NCBI accession no.: NP_000928
• UniProt accession no.: P24928
• shipped in: wet ice
• target post-translational modification: phosphorylation (pSer2)
• Gene Information: human ... POLR2B(5431)

Description

General description

RPB1 (RNA polymerase II subunit B1) is the catalytic component of RNA polymerase II which synthesizes mRNA and non-coding RNAs. During transcription, elongation is influenced by the phosphorylation status of the C-terminal domain (CTD) of RPB1, which acts as an assembly platform for factors regulating transcription initiation, elongation, termination and mRNA processing. Phosphorylation occurs mainly at residues ′Ser-2′ and ′Ser-5′ of the tandem 7 residue repeats in the C-terminal domain (CTD), which activates Pol II. This phosphorylation also can occur at ′Ser-7′ of the heptapepdtide repeat. This antibody recognizes the ′Ser-2′ CTD residue of RPB1.

~220 kDa observed

Immunogen

Epitope: Phosphorylated Ser2 at the C-terminal domain (CTD)

Ovalbumin-conjugated linear peptide corresponding to human RNA Polymerase II subunit B1 phosphorylated at Ser2 of the C-terminal domain (CTD).

Application

Anti-RNA polymerase II subunit B1 (phospho CTD Ser-2), clone 3E1 (rat monoclonal) is a highly specific rat monoclonal antibody & that targets RNA Polymerase & has been tested in western blotting.

Chromatin Immunoprecipitation Analysis: A representative lot was used by an independent laboratory to immunoprecipitate RNA polymerase II subunit B1 (phospho-CTD Ser-5) in ChIP (Chapman, R., et al. (2007). Science. 318(5857):1780 -1782.).
Demonstrated to react with human RBP1 in Ni et al., 2011. Transcription 2:5, 237-242

Research Category
Epigenetics & Nuclear Function

Research Sub Category
Transcription Factors

Biochem/physiol Actions

Demonstrated to react with human RBP1 in Ni et al., 2011. Transcription 2:5, 237-242

This antibody recognizes RNA Polymerase II subunit B1 phosphorylated at Ser2 of the C-terminal domain (CTD).

Physical form

Unpurified

Unpurified rat monoclonal IgG1κ tissue culture supenatant with 0.05% sodium azide.

Preparation Note

Stable for 1 year at -20°C from date of receipt.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.

Analysis Note

Control
Untreated and lambda phosphatase treated NIH/3T3 cell lysate

Evaluated by Western Blotting in untreated and lambda phosphatase treated NIH/3T3 cell lysate.

Western Blotting Analysis: A 1:2,000 dilution of this antibody detected RNA Polymerase II subunit B1 (phospho CTD Ser-2) in untreated NIH/3T3 cell lysate.

Other Notes

Replaces: 04-1571

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.

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1