Alexa Fluor® 594 anti-RNA Polymerase II RPB1 Antibody

Pricing & Availability
Clone
8WG16 (See other available formats)
Other Names
RNA polymerase II sub-unit 1, RPB1, CTD repeat YSPTSPS, C- terminal domain repeat YSPTSPS, DNA-directed RNA polymerase II subunit A, RNA-directed RNA polymerase II subunit RPB1, POLR2A, POLR2
Isotype
Mouse IgG2a
Ave. Rating
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Product Citations
publications
8WG16_AF594_RNA_Polymerase_II_RBB1_Antibody_IF_100715
HeLa cells were fixed with 2% paraformaldehyde (PFA) for ten minutes, permeabilized with 0.5% Triton X-100 for five minutes, and blocked with 5% FBS for 30 minutes. Then the cells were intracellularly stained with 2 µg/ml Alexa Fluor® 594 conjugated (red) anti-RNA Polymerase II RPB1 (clone 8WG16 ) in blocking buffer overnight at 4°C. Actin filaments were labeled with Alexa Fluor® 488 Phalloidin (green). Nuclei were counterstained with DAPI (blue). The image was captured with a 60X objective.
  • 8WG16_AF594_RNA_Polymerase_II_RBB1_Antibody_IF_100715
    HeLa cells were fixed with 2% paraformaldehyde (PFA) for ten minutes, permeabilized with 0.5% Triton X-100 for five minutes, and blocked with 5% FBS for 30 minutes. Then the cells were intracellularly stained with 2 µg/ml Alexa Fluor® 594 conjugated (red) anti-RNA Polymerase II RPB1 (clone 8WG16 ) in blocking buffer overnight at 4°C. Actin filaments were labeled with Alexa Fluor® 488 Phalloidin (green). Nuclei were counterstained with DAPI (blue). The image was captured with a 60X objective.
See Alexa Fluor® 594 spectral data See high resolution IF data...
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664908 100 µg $345
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Description

RPB1 is the catalytic and largest component of RNA polymerase II, which synthesizes mRNA precursors and many functional non-coding RNAs. It forms the polymerase active center together with RPB2, the second largest subunit. Polymerase II (Pol II) is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relatively to each other. RPB1 is part of the core element with the central large cleft, the clamp element that moves to open and close the cleft, and the jaws that are thought to grab the incoming DNA template. At the start of transcription, a single DNA template strand of the promoter is positioned within the central active site cleft of Pol II. Then, a bridging helix emanates from RPB1 and crosses the cleft near the catalytic site, which acts as a ratchet that moves the RNA-DNA hybrid through the active site by switching from straight to bent conformations during each neuocleotide addition. This promotes translocation of Pol II. Pol II moves on the template during transcription elongation. Elongation is influenced by the phosphorylation status of the C-terminal domain (CTD) of Pol II's largest subunit (RPB1), which serves as a platform for assembling factors that regulate transcription initiation, elongation, termination, and mRNA processing. It can act as a RNA-dependent RNA polymerase when associated with small delta antigen of Hepatitis delta virus, being able to conform as both a replicate and transcriptase for the viral RNA circular genome.

Product Details
Technical data sheet

Product Details

Reactivity
Human, Yeast, Wheat, Mouse, C. elegans, X. laevis, most other eukaryotic RNAPII
Antibody Type
Monoclonal
Host Species
Mouse
Immunogen
Wheat germ RNA Polymerase II
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation
The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 594 under optimal conditions. The solution is free of unconjugated Alexa Fluor® 594.
Concentration
0.5 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application

IF - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescence staining. For immunofluorescence microscopy, a concentration range of 0.1 - 10 μg/ml is recommended. It is recommended that the reagent be titrated for optimal performance for each application.

* Alexa Fluor® 594 has an excitation maximum of 590 nm, and a maximum emission of 617 nm.


Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.

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Application Notes

Clone 8WG16 recognizes YSPTSPS in the C-terminal domain. The antibody cross-reacts with wheat, yeast, mouse, c. elegans, x. laevis, and most eukaryotic RNAPII.

Additional reported applications (for the relevant formats) include: chromatin immunoprecipitation, functional assay, and immunoprecipatation.

Application References

(PubMed link indicates BioLegend citation)
  1. Edwards AM, et al. 1990. Proc. Natl. Acad. Sci. USA. 87:2122.
  2. Thompson NE, et al. 1990. J. Biol. Chem. 265:7069.
  3. Thompson NE, et al. 1989. J. Biol. Chem. 264:11511.
RRID
AB_2566177 (BioLegend Cat. No. 664908)

Antigen Details

Structure
RPB1 is a 220 kD subunit of RNA polymerase II and has 1970 amino acids.
Distribution

Nucleus; ubiquitous expressed in all cells

Function
Core element of RNA polymerase II transcription machinery.
Interaction
COMPASS (COMplex of Proteins ASsociated with Set1), SET2, BRE1
Biology Area
Cell Biology, Transcription Factors
Molecular Family
Nuclear Markers
Antigen References
  1. Chávez S, et al. 2016. CUrr. Genet. 62:701.
Gene ID
5430 View all products for this Gene ID 20020 View all products for this Gene ID 2540292 View all products for this Gene ID
UniProt
View information about RNA Polymerase II RPB1 on UniProt.org

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Go To Top Version: 2    Revision Date: 10/07/2015

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
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