BRF1 Rabbit Polyclonal Antibody

CAT#: AP01180PU-N

BRF1 rabbit polyclonal antibody, Aff - Purified

Product Images

Western blot analysis of TFIIIB90-1 Antibody in extracts from HeLa cells.

• 

  Immunohistochemistry analysis of TFIIIB90-1 Antibody in paraffin-embedded human brain tissue.

Specifications

Product Data

• Applications: IHC, WB
• Recommended Dilution: Western Blot: 1/500-1/1000.
  Immunohistochemistry on Paraffin Sections: 1/50-1/200.
  Immunofluorescence: 1/50-1/200.
• Reactivities: Human, Mouse
• Host: Rabbit
• Clonality: Polyclonal
• Immunogen: Synthetic peptide, corresponding to amino acids 220-270 of Human TFIIIB90-1.
• Specificity: This antibody detects endogenous levels of TFIIIB90-1 protein. (region surrounding Glu257)
• Formulation: Phosphate buffered saline (PBS), pH~7.2
  State: Aff - Purified
  State: Liquid purified Ig fraction (> 95% pure by SDS-PAGE)
  Preservative: 0.05% Sodium Azide
• Concentration: 1.0 mg/ml
• Purification: Affinity Chromatography using epitope-specific immunogen
• Conjugation: Unconjugated
• Storage: Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer.
  Avoid repeated freezing and thawing.
• Stability: Shelf life: One year from despatch.
• Predicted Protein Size: ~74 kDa
• Gene Name: BRF1, RNA polymerase III transcription initiation factor 90 kDa subunit
• Database Link:
  Entrez Gene 72308 MouseEntrez Gene 2972 Human
  UniProt ID Q92994
• 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 alignant 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.
• Synonyms: BRF, GTF3B, TAF3B2, TAF3C

Reference Data

• Protein Families: Transcription Factors