Reactive species
Human;Mouse;Rat
Applications
WB;IHC;IF;ELISA
Antibody type
Polyclonal Antibody
Protein name
DNA-directed RNA polymerase I subunit RPA2
Immunogen
Synthesized peptide derived from the Internal region of human RPA135.
Specificity
RPA135 Polyclonal Antibody detects endogenous levels of RPA135 protein.
Constitute
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Source
Polyclonal, Rabbit,IgG
Dilution rate
WB: 1/500 - 1/2000. IHC: 1/100 - 1/300. ELISA: 1/40000.. IF 1:50-200
Purification process
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Other name
POLR1B; DNA-directed RNA polymerase I subunit RPA2; RNA polymerase I subunit 2; DNA-directed RNA polymerase I 135 kDa polypeptide; RPA135
Background
Eukaryotic RNA polymerase I (pol I) is responsible for the transcription of ribosomal RNA (rRNA) genes and production of rRNA, the primary component of ribosomes. Pol I is a multisubunit enzyme composed of 6 to 14 polypeptides, depending on the species. Most of the mass of the pol I complex derives from the 2 largest subunits, Rpa1 and Rpa2 in yeast. POLR1B is homologous to Rpa2 (Seither and Grummt, 1996 [PubMed 8921381]).[supplied by OMIM, Mar 2008],
Function
catalytic activity:Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).,function:DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Second largest core component of RNA polymerase I which synthesizes ribosomal RNA precursors. Proposed to contribute to the polymerase catalytic activity and forms the polymerase active center together with the largest subunit. Pol I is composed of mobile elements and RPA2 is part of the core element with the central large cleft and probably a clamp element that moves to open and close the cleft.,similarity:Belongs to the RNA polymerase beta chain family.,subunit:Component of the RNA polymerase I (Pol I) complex consisting of at least 13 subunits.,
