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Home >> Antibodies >> POLR2A Antibody / RNA polymerase II subunit RPB1

POLR2A Antibody / RNA polymerase II subunit RPB1 [clone CTD 4H8] (V7452)

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  Catalog No Formulation Size Price (USD)  
Image V7452-100UG 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide 100 ug 519
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V7452-20UG 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide 20 ug 229
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V7452SAF-100UG 1 mg/ml in 1X PBS; BSA free, sodium azide free 100 ug 519
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V7452IHC-7ML Prediluted in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide; *For IHC use only* 7 ml 519
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Western blot testing of human HAP1, K562, PC3, HepG2, and mouse NIH3T3 lysate with POLR2A antibody (clone CTD 4H8). Routinely observed molecular weight: 200-250 kDa.
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Western blot testing of human HAP1, K562, PC3, HepG2, and mouse NIH3T3 lysate with POLR2A antibody (clone CTD 4H8). Routinely observed molecular weight: 200-250 kDa.
IHC staining of FFPE human breast carcinoma with POLR2A antibody (clone CTD 4H8). HIER: boil tissue sections in pH6, 10mM citrate buffer, for 10-20 min and allow to cool before testing.
SDS-PAGE analysis of purified, BSA-free POLR2A antibody (clone CTD 4H8) as confirmation of integrity and purity.
Availability 1-3 business days
Species Reactivity Human, Mouse, Rat
Format Purified
Clonality Monoclonal (mouse origin)
Isotype Mouse IgG1, kappa
Clone Name CTD 4H8
Purity Protein G affinity chromatography
UniProt P24928
Localization Nuclear
Applications Flow cytometry : 1-2ug/10^6 cells
Immunofluorescence : 1-2ug/ml
Western blot : 1-2ug/ml
Immunohistochemistry (FFPE) : 1-2ug/ml for 30 min at RT
Limitations This POLR2A antibody is available for research use only.
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Description

RNA polymerase II (Pol II) is an enzyme that is composed of 12 subunits and is responsible for the transcription of protein-coding genes. Transcription initiation requires Pol II-mediated recruitment of transcription machinery to a target promoter, thereby allowing transcription to begin. The largest subunit of Pol II (referred to as RPB1 or RPB205) is a 1,840 amino acid protein that contains one C2H2-type zinc finger and a C-terminal domain comprised of several heptapeptide repeats. Although Pol II function requires the cooperation of all twelve subunits, the largest subunit conveys Pol II catalytic activity and, together with the second largest subunit, forms the active center of the Pol II enzyme. Additionally, the large subunit participates in forming the DNA-binding domain of Pol II, a groove that is necessary for transcription of the DNA template. Without proper function of the large subunit, mRNA synthesis and subsequent transcription elongation cannot occur.

Application Notes

Optimal dilution of the recombinant POLR2A antibody should be determined by the researcher.

1. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.

Immunogen

The immunogen for this POLR2A antibody was 10 repeats of synthetic peptide YSPTSPS using chemically synthesized phospho-S5.

Storage

Store the POLR2A antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).

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