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General description
RNA polymerase II subunit B1 (RPB1) is the largest subunit of the RNA polymerase II complex. As a holoenzyme RNA polymerase II catalyzes transcription of eukaryotic DNA into RNA using the four ribonucleoside triphosphates as substrates. The RBP1 subunit, in combination with other polymerase subunits, forms a large central cleft that maintains contact between the active site of the enzyme, the DNA template, and the nascent RNA transcript. This subunit also contains a carboxy terminal domain (CTD) consisting of tandem heptapeptide repeats. In actively transcribing RNA polymerase ‘Ser-2’ and ‘Ser-5’ of the heptapeptide repeat are phosphorylated. Phosphorylation activates the RNA polymerase II beta subunit, allowing it to serve as an assembly platform for additional subunits that modulate initiation, elongation, termination and mRNA processing.
~ 220 kDa
Immunogen
Epitope: Unknown
Ovalbumin-conjugated linear peptide corresponding to human RNA polymerase II subunit B1.
Application
Anti-RNA polymerase II subunit B1 Antibody, clone 4F8 is a Rat monoclonal antibody for detection of RNA polymerase II subunit B1 also known as DNA-directed RNA polymerase II A & has been validated in WB, ELISA.
Chromatin Immunoprecipitation Analysis: A representative lot was used by independent laboraotry in ChIP. (Chapman, R., et al. (2007). Science. 318(5857):1780 -1782.)
Research Category
Epigenetics & Nuclear Function
Epigenetics & Nuclear Function
Research Sub Category
Transcription Factors
RNA Metabolism & Binding Proteins
Biochem/physiol Actions
This antibody recognizes RNA polymerase II subunit B1.
Physical form
Format: Purified
Protein G Purified
Purified rat monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4, 150 mM NaCl) with 0.05% sodium azide.
Preparation Note
Stable for 1 year at 2-8°C from date of receipt.
Analysis Note
Control
NIH/3T3 cell lysates
Evaluated by Western Blot in NIH/3T3 cell lysates.
Western Blot Analysis: 1 µg/ml of this antibody detected RNA polymerase II subunit B1 on 10 µg of NIH/3T3 cell lysates.
Other Notes
Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.
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.
| biological source | rat |
| Quality Segment | 100 |
| conjugate | unconjugated |
| antibody form | purified antibody |
| antibody product type | primary antibodies |
| clone | 4F8, monoclonal |
| species reactivity | mouse |
| species reactivity (predicted by homology) | human (based on 100% sequence 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 | unmodified |
| Gene Information | human ... POLR2B(5431) |
| 长度(mm) | |
| 宽度(mm) | |
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| 重量(kg) |
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