ABE30

Anti-RNA polymerase II subunit B1 Antibody, clone 4F8

from rabbit, purified by affinity chromatography

• Synonym(s): polymerase (RNA) II (DNA directed) polypeptide A, 220kDa, DNA-directed RNA polymerase III largest subunit, DNA-directed RNA polymerase II subunit RPB1, RNA polymerase II subunit B1, DNA-directed RNA polymerase II subunit A, DNA-directed RNA polymerase II
• UNSPSC Code: 12352203
• eCl@ss: 32160702
• NACRES: NA.41

Properties

• biological source: rabbit
• Quality Level: 100
• antibody form: affinity isolated antibody
• antibody product type: primary antibodies
• clone: polyclonal
• purified by: affinity chromatography
• species reactivity: human
• species reactivity (predicted by homology): rat (based on 100% sequence homology), horse (based on 100% sequence homology), canine (based on 100% sequence homology), bovine (based on 100% sequence homology), mouse (based on 100% sequence homology)
• packaging: antibody small pack of 25 μg
• technique(s): immunocytochemistry: suitable; western blot: suitable
• NCBI accession no.: NP_000928
• UniProt accession no.: P24928
• shipped in: wet ice
• target post-translational modification: unmodified
• Gene Information: human ... POLR2B(5431)

Description

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 RPB1 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.

Immunogen

KLH-conjugated linear peptide corresponding to human RNA polymerase II subunit B1.

Application

Immunocytochemistry Analysis: 1:500 dilution from a representative lot detected RNA polymerase II subunit B1 in HeLa cells.

Research Category
Epigenetics & Nuclear Function

Research Sub Category
RNA Metabolism & Binding Proteins

Use Anti-RNA polymerase II subunit B1 Antibody, clone 4F8 (rabbit polyclonal antibody) validated in WB, ICC to detect RNA polymerase II subunit B1 also known as DNA-directed RNA polymerase II subunit RPB1.

Quality

Evaluated by Western Blot in HeLa nuclear extract.

Western Blot Analysis: 1 µg/mL of this antibody detected RNA polymerase II subunit B1 on 10 µg of HeLa nuclear extract.

Target description

~217 kDa observed

Physical form

Affinity purified

Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Analysis Note

Control
HeLa nuclear extract

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.

Safety Information

• Storage Class Code: 12 - Non Combustible Liquids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable