SUB1, also known as PC4, is a general coactivator that functions cooperatively with TAFs and mediates functional interactions between upstream activators and the general transcriptional machinery. SUB1 interacts with the activation domain of transcription factor IIA (TFIIA) and TATA-binding protein (TBP)-associated factors (TAFs) to directly bind to double stranded DNA. This protein induces both activation and repression of RNAPII basal transcription, depending on the presence or absence of these transcription factors and holoenzyme components.
Source:Recombinant corresponding to aa1-127 of human SUB1 6x his tagged, expressed in E.coli.
Storage and Stability:May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing.. Store at -20°C. Aliquots are stable for at least 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
仕様
Size：50ug
Source Antigen：Recombinant, E.coli
Grade：Purified
Purity：~90% (SDS-PAGE).
Form：Supplied as a liquid in 20mM Tris-HCl, pH 8.0, 0.2M sodium chloride, 5mM DTT, 20% glycerol.
