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

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.

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).

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).

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

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.

~220 kDa observed

Replaces: 04-1571

Unpurified

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

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.

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

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