RNA pol II CTD phospho Ser5 antibody (mAb)
|Aliases: RPB1, RPO2, POLR2, POLRA, RPBh1, RPOL2, RpIILS, hsRPB1, hRPB220|
|Catalog No: 61085||Format: 100 µg||$455||Buy|
|Catalog No: 61086||Format: 10 µg||$110||Buy|
|Catalog No: 61986||Format: 50 µg||$265||Buy|
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Applications Validated by Active Motif:
ChIP: 5-10 µg per ChIP
ChIP-Seq: 5-10 µg each
IF: 1:500 dilution
WB*: 0.5 - 2 µg/ml dilution
*Note: Many chromatin-bound proteins are not soluble in a low salt nuclear extract and fractionate to the pellet. Therefore, we recommend a High Salt / Sonication Protocol when preparing nuclear extracts for Western blot. In addition, we recommend the addition of 0.05% Tween 20 to all blocking solutions to reduce background.
The following applications have been published using this antibody. Unless noted above, Active Motif may not have validated the antibody for use in these applications:
View publications that use Active Motif products & services here. Enter the product number(s) to see publications & applications that use this antibody.
This RNA pol II CTD phospho Ser5 antibody was raised against a peptide containing the RNA pol II CTD sequence phosphorylated at serine 5.
Purified IgG in 70 mM Tris (pH 8), 105 mM NaCl, 31 mM glycine, 0.07 mM EDTA, 30% glycerol and 0.035% sodium azide. Sodium azide is highly toxic.
RNA pol II (RNA polymerase II) is responsible for synthesizing messenger RNA in eukaryotes. RNA pol II contains a carboxy terminal domain composed of heptapeptide repeats that are essential for polymerase activity. These repeats contain serine and threonine residues that are phosphorylated in actively transcribing RNA polymerase. In addition, RNA pol II, in combination with several other polymerase subunits, form the DNA binding domain of the polymerase, a groove in which the DNA template is transcribed into RNA.
During the transcription cycle, the CTD of the large subunit of RNA pol II is reversibly phosphorylated. RNA pol II containing unphosphorylated CTD is recruited to the promoter, whereas the hyperphosphorylated CTD form is involved in active transcription. Phosphorylation occurs at two sites within the heptapeptide repeat, at serine 2, serine 5 and serine 7. RNA pol II Serine 5 phosphorylation is confined to promoter regions and is necessary for the initiation of transcription.
Active Motif's HeLa nuclear extract (Catalog No. 36010) can be used as a positive control for RNA Pol II CTD phospho Ser5 antibody.
Active Motif's Human Positive Control Primer Set ACTB-2 (Cat. No. 71005) and Human Negative Control Primer Set 1 (Cat. No. 71001) have been validated for performing qPCR and endpoint PCR when this antibody has been used for ChIP on human samples. For ChIP experiments with this antibody on mouse samples, the Mouse Positive Control Primer Set Actb-2 (Cat. No. 71017) and Mouse Negative Control Primer Set 1 (Cat. No. 71011) have been validated for both qPCR and endpoint PCR.
Chromatin IP Assays
This antibody has been validated for use in ChIP and/or ChIP-Seq, and can be used with Active Motif's ChIP-IT® High Sensitivity Kit or our magnetic bead-based ChIP-IT® Express Kits. For an overview of all of our ChIP products, please visit our Chromatin IP Page to learn about ChIP products designed for use with RNA pol II CTD phospho Ser5 antibody (mAb).
Some products may be shipped at room temperature. This will not affect their stability or performance. Avoid repeated freeze/thaw cycles by aliquoting items into single-use fractions for storage at -20°C for up to 2 years. Keep all reagents on ice when not in storage.
This product is guaranteed for 12 months from date of receipt.
This product is for research use only and is not for use in diagnostic procedures.
- ChIP = Chromatin Immunoprecipitation;
- ChIP = ChIP Sequencing;
- CUT&RUN = Cleavage Under Targets and Release Using Nuclease;
- CUT&Tag = Cleavage Under Targets and Tagmentation;
- DB = Dot Blot;
- ELISA = Enzyme-linked Immunosorbent Assay;
- EMSA = Electrophoretic Mobility Shift Assay
- FC = Flow Cytometry;
- ICC = Immunocytochemistry;
- IF = Immunofluorescence;
- IHC = Immunohistochemistry;
- IP = Immunoprecipitation;
- MeDIP = Methyl-DNA Immunoprecipitation;
- NEU = Neutralizing;
- WB = Western Blotting