Background:

Such factors can be divided into two major functional classes: the basal factors that are required for transcription of all Pol II genes, including TFIIA, TFIIB, TFIID, TFIIE, TFIIF and TFIIH; and sequence-specific factors that regulate gene expression. The basal transcription factors and Pol II form a specific multiprotein complex near the transcription start site by interacting with core promotor elements such as the TATA box generally located 25-30 base pairs upstream of the transcription start site. Template commitment is established by the initial binding of TFIID to the “TATA” element of the promotor, a step which may be facilitated by TFIIA. TFIIB then acts as the bridge between TFIID and RNA polymerase II.

Specificity:

This antibody detects endogenous levels of TFIIB and does not cross-react with related proteins

Alternative names:

TF2B; TFIIB; S300-II; Transcription initiation factor IIB

Species reactivity:

Human

Host:

Mouse

Ig type:

Mouse IgG2b, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Immunogen:

Recombinant full length Human TFIIB.

Purification & Purity:

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

Molecular weight:

Predicted band size:35KDa Observed band size:37KDa

Applications:

WB IHC ICC

Usage:

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

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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