Molecular weight (DA)
156kD
Immunogen
The antiserum was produced against synthesized peptide derived from human RPC1. AA range:31-80
Specificity
POLR3A Polyclonal Antibody detects endogenous levels of POLR3A protein.
Formulation
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Dilution rate
WB: 1/500 - 1/2000. IHC: 1/100 - 1/300. ELISA: 1/40000.. IF 1:50-200
Purification process (Immunogen)
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Background
The protein encoded by this gene is the catalytic component of RNA polymerase III, which synthesizes small RNAs. The encoded protein also acts as a sensor to detect foreign DNA and trigger an innate immune response. [provided by RefSeq, Aug 2011],
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. Largest and catalytic core component of RNA polymerase III which synthesizes small RNAs, such as 5S rRNA and tRNAs. Forms the polymerase active center together with the second largest subunit. A single stranded DNA template strand of the promoter is positioned within the central active site cleft of Pol III. A bridging helix emanates from RPC1 and crosses the cleft near the catalytic site and is thought to promote translocation of Pol III by acting as a ratchet that moves the RNA-DNA hybrid through the active site by switching from straight to bent conformations at each step of nucleotide addition.,similarity:Belongs to the RNA polymerase beta' chain family.,subunit:Compon
Protein name
DNA-directed RNA polymerase III subunit RPC1
Other name
POLR3A; DNA-directed RNA polymerase III subunit RPC1; RNA polymerase III subunit C1; DNA-directed RNA polymerase III largest subunit; DNA-directed RNA polymerase III subunit A; RNA polymerase III 155 kDa subunit; RPC155; RNA polymerase III
Fields
>>RNA polymerase;>>Cytosolic DNA-sensing pathway
Human protein sequence Database
O14802
Mouse protein sequence database
Rat protein sequence database
Cellular localization
Nucleus.
Tissue expression
Expressed in the brain, in the cortex and the white matter (at protein level).