Background:

For gene transcription governed by RNA polymerase I, the human transcription factor SL1 (mouse TIF-IB) directs the assembly of initiation complexes at the prompter. Like TFIID, which directs transcription by RNA polymerase II, SL1/TIF-IB contains the TATA-binding protein (TBP) and a set of TBP-associated factors (TAFs). The three TAF I subunits, hTAF I p110, hTAF I p63 and hTAF p48 (or mouse TAF I p95, TAF I p68 and TAF I p48) are all integral components of SL1/TIF-IB. The mutually exclusive binding of either TAF I or TAF II subunits to TBP is believed to direct the formation of promoter and RNA polymerase-specific complexes.

Specificity:

TAF I p48 (R318) polyclonal antibody detects endogenous levels of TAF I p48 protein.

Alternative names:

TATA box-binding protein-associated factor RNA polymerase I subunit A; RNA polymerase I-specific TBP-associated factor 48 kDa; TAFI48; TATA box-binding protein-associated factor 1A; TBP-associated factor 1A; Transcription factor SL1; Transcription initiation factor SL1/TIF-IB subunit A; TAF1A

Species reactivity:

Human,Rat

Host:

Rabbit

Ig type:

Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Immunogen:

Synthetic peptide, corresponding to amino acids 280-336 of Human TAF I p48.

Purification & Purity:

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

Molecular weight:

~ 53 kDa

Applications:

WB IHC

Usage:

WB: 1:500~1:1000 IHC: 1:50~1:200

Storage:

Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Precautions:

For research use only, not for use in diagnostic procedure.

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