Reactive species
Human;Rat;Mouse;
Antibody type
Polyclonal Antibody
Protein name
TATA box-binding protein-associated factor RNA polymerase I subunit B (RNA polymerase I-specific TBP-associated factor 63 kDa) (TAFI63) (TATA box-binding protein-associated factor 1B) (TBP-associated
Immunogen
Synthesized peptide derived from part region of human protein
Specificity
TAF1B Polyclonal Antibody detects endogenous levels of protein.
Constitute
Liquid in PBS containing 50% glycerol, and 0.02% sodium azide.
Source
Polyclonal, Rabbit,IgG
Dilution rate
WB 1:500-2000 ELISA 1:5000-20000
Purification process
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Background
Initiation of transcription by RNA polymerase I requires the formation of a complex composed of the TATA-binding protein (TBP) and three TBP-associated factors (TAFs) specific for RNA polymerase I. This complex, known as SL1, binds to the core promoter of ribosomal RNA genes to position the polymerase properly and acts as a channel for regulatory signals. This gene encodes one of the SL1-specific TAFs. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2016],
Function
function:Component of the transcription factor SL1/TIFIB complex involved in the assembly of the PIC (preinitiation complex).,similarity:Belongs to the TAF1 family.,subunit:Component of the transcription factor SL1/TIFIB complex which is composed of TBP and at least TAF1A, TAF1B and TAF1C. In the complex, interacts directly with TBP, TAF1A and TAF1C. Interaction of the SL1/TIFIB subunits with TBP excludes interaction with the transcription factor IID (TFIID) subunits. This mutually exclusive binding directs the formation of promoter and RNA polymerase-selective TBP-TAF complexes.,
