Analysis Note

ControlHeLa nuclear extract

Application

Research Sub CategoryRNA Metabolism & Binding Proteins

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

Research CategoryEpigenetics & Nuclear Function

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.

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.

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 R16;Ser-2' and R16;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.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

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.

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.

Storage and Stability

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

Target description

~217 kDa observed