RNA polymerases transcribe nuclear genes for ribosomal RNA, thus representing ribosomal biogenesis. RNA polymerase I (Pol I) is located in the nucleolus and transcribes class I genes, which code for large ribosomal RNA. Different subunits of the Pol I transcription machinery are targets of various physiological stimuli, which suggests that multiple signaling pathways are involved in carrying out Pol I transcription. RPA40 and RPA16 are subunits of Pol I that associate with each other at an early stage of RNA polymerase I assembly. RPA40 is essential for the function and integrity of the complex and is also an essential subunit of RNA polymerase III (Pol III). RPA40, RPA16 and RPA135 encode the three subunits of RNA polymerase I, respectively. RPA194 is the largest subunit of RNA Pol I and is not a component of Pol II and Pol III.

DNA-directed RNA polymerase I subunit RPA1; RNA polymerase I subunit A1; A190; DNA-directed RNA polymerase I largest subunit; DNA-directed RNA polymerase I subunit A; RNA polymerase I 194 kDa subunit; RPA194; POLR1A

o95602

Human,Mouse,Rat

WB

WB 1:500-1:1000

~ 250 kDa

Rabbit

This antibody detects endogenous levels of POLR1A protein.

A synthetic peptide corresponding to residues in Human POLR1A.

Polyclonal

Rabbit IgG

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

PBS with 0.02% sodium azide, 50% glycerol, pH7.2

1mg/ml

Store at 4℃ short term,and store at -20℃ long term. Avoid freeze-thaw cycles.