Rpb1 CTD antibody (pTyr1)

Catalog No. ABIN2668519

There are 4+ publications for this product available. The Rat Monoclonal anti-Rpb1 CTD antibody is suitable to detect Rpb1 CTD in samples from Human. It has been validated for WB, IF, ICC, ChIP and IP.

Quick Overview for Rpb1 CTD antibody (pTyr1) (ABIN2668519)

Target: Rpb1 CTD (RNA Polymerase II CTD)

Reactivity: Human

Host: Rat

Clonality: Monoclonal

Conjugate: This Rpb1 CTD antibody is un-conjugated

Application: Western Blotting (WB), Immunofluorescence (IF), Immunocytochemistry (ICC), Chromatin Immunoprecipitation (ChIP), Immunoprecipitation (IP)

Clone: 3D12

Product Details anti-Rpb1 CTD Antibody

Binding Specificity: pTyr1

Purpose: RNA pol II CTD phospho Tyr1 antibody (mAb) (Clone 3D12)

Purification: Protein G Chromatography

Immunogen: This antibody was raised against a synthetic peptide containing the RNA Pol II heptad repeat consensus sequence phosphorylated at tyrosine 1.

Isotype: IgG1

Application Details

Application Notes: WB*: 1 - 2 μg/mL *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. This antibody is also available as an AbFlex engineered recombinant antibody. For details on the corresponding AbFlex Recombinant Antibody, see Catalog No. 91219.

Restrictions: For Research Use only

Handling

Concentration: 1 μg/μL

Buffer: Purified IgG in PBS with 30 % glycerol and 0.035 % sodium azide.

Preservative: Sodium azide

Precaution of Use: This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

Handling Advice: Avoid repeated freeze/thaw cycles by aliquoting items into single-use fractions,Keep all reagents on ice when not in storage

Storage: -20 °C

Storage Comment: 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.

Expiry Date: 24 months

References for anti-Rpb1 CTD antibody (ABIN2668519)

Harlen, Trotta, Smith, Mosaheb, Fuchs, Churchman: "Comprehensive RNA Polymerase II Interactomes Reveal Distinct and Varied Roles for Each Phospho-CTD Residue." in: Cell reports, Vol. 15, Issue 10, pp. 2147-2158, (2016) (PubMed).

Laitem, Zaborowska, Isa, Kufs, Dienstbier, Murphy: "CDK9 inhibitors define elongation checkpoints at both ends of RNA polymerase II-transcribed genes." in: Nature structural & molecular biology, Vol. 22, Issue 5, pp. 396-403, (2015) (PubMed).

Zaborowska, Baumli, Laitem, OReilly, Thomas, OHare, Murphy: "Herpes Simplex Virus 1 (HSV-1) ICP22 protein directly interacts with cyclin-dependent kinase (CDK)9 to inhibit RNA polymerase II transcription elongation." in: PLoS ONE, Vol. 9, Issue 9, pp. e107654, (2014) (PubMed).

Mayer, Heidemann, Lidschreiber, Schreieck, Sun, Hintermair, Kremmer, Eick, Cramer: "CTD tyrosine phosphorylation impairs termination factor recruitment to RNA polymerase II." in: Science (New York, N.Y.), Vol. 336, Issue 6089, pp. 1723-5, (2012) (PubMed).

Target Details for Rpb1 CTD

Target: Rpb1 CTD (RNA Polymerase II CTD)

Alternative Name: RNA Pol II CTD

Background: 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 sites within the heptapeptide repeat, at serine 2, serine 5, serine 7 and tyrosine 1. RNA pol II Tyrosine 1 phosphorylation is found during elongation and appears to activate transcription by suppressing RNA pol II termination.

Molecular Weight: 210 kDa

Gene ID: 5430

NCBI Accession: NP_000928