Description
Product Characteristics:
KAT3B/p300 is a transcriptional adapter protein (300 kDa)which is characterized by three cysteine and histidine rich regions and its C-terminus specifically binds the adenovirus E1A protein. KAT3B and associated proteins are components of TATA-binding protein (TBP)complexes. Protein kinase A mediated CREB phosphorylation results in the binding of CREB to a 265 kDa nuclear protein designated KAT3A/CBP(for CREB-binding protein). KAT3B and KAT3A are homologous to each other.
Subcellular location: Cytoplasm, Nucleus
Synonyms: CREBBP/EP300 inhibitory protein 1, Cyclic AMP responsive enhancer binding protein, E1A associated protein p300, E1A binding protein p300, EC 2.3.1.48, EP300, EP300: E1A binding protein p300, RB and P300 binding protein EID 1, Histone acetyltransferase p300, p300 HAT, Retinoblastoma protein associated protein.
Target Information: This gene encodes the adenovirus E1A-associated cellular p300 transcriptional co-activator protein. It functions as histone acetyltransferase that regulates transcription via chromatin remodeling and is important in the processes of cell proliferation and differentiation. It mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. This gene has also been identified as a co-activator of HIF1A (hypoxia-inducible factor 1 alpha), and thus plays a role in the stimulation of hypoxia-induced genes such as VEGF. Defects in this gene are a cause of Rubinstein-Taybi syndrome and may also play a role in epithelial cancer. [provided by RefSeq, Jul 2008]