PA1-847 detects cyclic AMP-responsive enhancer binding protein (CREB) binding protein (CBP) from human and mouse tissues and cells.
PA1-847 has been successfully used in ChIP, ICC/IF, Western blot and IHC-P procedures. By Western blot, this antibody detects an ~265 kDa protein representing CBP and a larger, unknown protein at ~400 kDa from HeLa cell lysate.
The PA1-847 immunogen is a synthetic peptide corresponding to residues A(162) T S S P A T S Q T G P G I C(176) in the nuclear factor binding domain of human CBP. The PA1-847 immunizing peptide (Cat. # PEP-052) is available for use in neutralization and control experiments.
Cyclic AMP-responsive enhancer binding protein (CREB) binding protein (CBP) and p300 are closely related transcriptional coactivators that have been shown to directly interact with many different DNA-binding transcription factors including nuclear hormone receptors, CREB (cyclic AMP-responsive enhancer binding protein), c-Fos, c-Jun/v-Jun, c-Myb/v-Myb, TFIIB and MyoD. Both CBP and p300 have been shown to display histone acetyltransferase (HAT) activity, capable of acetylating all four core histone particles in nucleosomes. As a result of HAT activity, it has been suggested CBP and p300 may play a direct role in activating chromatin for transcription.
Single point mutations in CBP have been proposed as causative factors in the developmental abnormalities of Rubinstein-Taybi syndrome (RTS). Although both CBP and p300 appear to function similarly, the inability of p300 to rescue CBP malfunction in RTS suggests intrinsic functional differences between CBP and p300.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CREB Binding Protein; CREB-binding protein
Gene Aliases: AW558298; CBP; CBP/p300; CREBBP; KAT3A; p300/CBP; RSTS
UniProt ID: (Human) Q92793