Product Description
TFIIIB90-1 (E257) polyclonal Antibody | BS2567 | Bioworld
Host: Rabbit
Reactivity: Human,Mouse,Rat
Application: WB IHC IF
Application Range: WB: 1:500~1:1000 IHC: 1:50~1:200 IF: 1:50~1:200
Background: RNA polymerase (pol) III synthesizes tRNA, 5s rRNA, 7SL RNA and U6 snRNA and is overexpressed in many transformed cell lines and tumors in vivo, since cells must duplicate its protein components before division. Therefore, in order to maintain rapid growth, cells must produce a high level of Pol III transcribed RNA, which requires the presence of the TFIIIB and TFIIIC2 transcription factor complexes. The TFIIIC2 complex is composed of five subunits, TFIIIC220, TFIIIC110, TFIIIC102, TFIIIC90 and TFIIIC63, that are overexpressed in adenovirus transformed cells as well as in malignant cells in vivo, such as ovarian carcinomas. TFIIIC2 recruits RNA pol III and TFIIIB to promoter elements and may be a key component in the deregulation of malignant cells. The TFIIIB complex includes the TATA-binding protein (TBP), TFIIB-related factor 1 (TFIIIB90, BRF1) and TFIIIB, the expression of which are also upregulated in transformed cells. In many carcinomas, the tumor suppressors retinoblastoma (RB) and p53 are inactivated, which affects their ability to bind and inactivate the function of TFIIIB.
Storage & Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.
Specificity: TFIIIB90-1 (E257) polyclonal Antibody detects endogenous levels of TFIIIB90-1 protein.
Molecular Weight: ~ 74 kDa
Note: For research use only, not for use in diagnostic procedure.
Alternative Names: Transcription factor IIIB 90 kDa subunit; TFIIIB90; hTFIIIB90; B-related factor 1; BRF-1; hBRF; TAF3B2; TATA box-binding protein-associated factor, RNA polymerase III, subunit 2; BRF1; BRF; GTF3B; TAF3B2; TAF3C
Immunogen: Synthetic peptide, corresponding to amino acids 220-270 of Human TFIIIB90-1.
Conjugate: N/A
Modification: N/A
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) .
Pathway: N/A