PCAF, Recombinant, Mouse, His-Tag (Histone Acetyltransferase PCAF, Histone Acetyltransferase KAT2B, Lysine Acetyltransferase 2B, P/CAF, P300/CBP-Associated Factor)

Catalog No : USB-301262
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Product name PCAF, Recombinant, Mouse, His-Tag (Histone Acetyltransferase PCAF, Histone Acetyltransferase KAT2B, Lysine Acetyltransferase 2B, P/CAF, P300/CBP-Associated Factor)
Catalog No USB-301262
Supplier’s Catalog No 301262
Supplier US Biologicals
Source antigen Recombinant, Sf21 cells
Reactivity
Cross reactivity
Applications
Molecular weight 92
Storage -70°C
Other names
Grade Highly Purified
Purity ~95% (SDS-PAGE)
Form Supplied as a liquid in 50mM Tris-HCl, pH 7.5, 100mM sodium chloride, 50mM imidazole, 0.2% NP-40, 10% glycerol.
Reactivity life 12 months
Note For reserch purpose only
Purity ~95% (SDS-PAGE)
Description The acetylation of histone lysine residues plays a crucial role in the epigenetic regulation of gene transcription. A bromodomain is a protein domain that recognizes acetylated lysine residues such as those on the N-terminal tails of histones. This recognition is often a prerequisite for protein-histone association and chromatin remodeling. These domains function in the linking of protein complexes to acetylated nucleosomes, thereby controlling chromatin structure and gene expression. Thus, bromodomains serve as “readers” of histone acetylation marks regulating the transcription of target promoters. p300/CBP-associated factor (PCAF) is a transcriptional coactivator that works both as a histone lysine acetyltransferase, through its HAT domain, and as an acetyl-lysine reader through its conserved bromodomain located directly C-terminal to the HAT domain. The PCAF bromodomain binds acetylated histone H3 and H4 as well as non-histone targets. Bromodomain binding is dictated by the position of the acetylated lysine as well as interactions with specific residues flanking the acetyl-lysine. PCAF also specifically binds the HIV viral protein Tat on acetylated K50 to regulate its transactivating activity and help induce chromatin remodeling of proviral genes, thereby promoting transcription of viral proteins. Source: Recombinant protein corresponding to mouse PCAF, fused to His-tag expressed in Sf21 cells. Molecular Weight: ~92kD Biological Activity: ~100-200ng are required for standard HAT assay. Storage and Stability: Aliquot to avoid repeated freezing and thawing and store at -70°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.