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Recombinant Proteins & Enzymes

Recombinant CREBBP (1081-1197) protein

Aliases: CBP; RSTS; KAT3A
Catalog No: 31373 Format: 100 µg $405 Buy Now
Catalog No: 31873 Format: 1 mg $2,600 Buy Now
Expressed In: E. coli Protein Species: Human

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for Recombinant CREBBP (1081-1197) proteinContents

Recombinant CREBBP (1081-1197) protein expressed in E. coli and supplied in 25 mM Tris pH 7.4, 150 mM NaCl and 5% glycerol. Please refer to product insert upon arrival for lot-specific concentration.

for Recombinant CREBBP (1081-1197) proteinBackground

CREB-binding protein (CREBBP) or CBP, is a protein known to play critical roles in embryonic development, growth control, and homeostasis by coupling chromatin remodeling to transcription factor recognition. CREBBP shares regions of very high sequence similarity with protein p300 in its bromodomain, cysteine-histidine-rich regions, and histone acetyltransferase domain. The CREBBP bromodomain recognizes acetylated histone lysine residues and functions as a ‘reader’ of these epigenetic histone marks to regulate chromatin structure and gene expression by linking associated proteins to the recognized acetylated nucleosomal targets. CREBBP has intrinsic histone acetyltransferase activity and also acts as a scaffold to stabilize additional protein interactions with the transcription complex. CREBBP acetylates histones as well as non-histone proteins, like NCOA3 coactivator. In addition, CREBBP binds specifically to phosphorylated CREB and enhances its transcriptional activity toward cAMP-responsive genes. CREBBP also has been shown to act as a coactivator of ALX1 in the presence of p300.

for Recombinant CREBBP (1081-1197) proteinApplication Notes

Recombinant CREBBP (1081-1197) is suitable for use in binding assays, inhibitor screening, and selectivity profiling.

for Recombinant CREBBP (1081-1197) proteinProtein Details

The peptide corresponding to amino acids 1081 - 1197 that contains the bromodomain sequences of CREBBP (accession number NM_004380.2) was expressed in E. coli and contains an N-terminal His-Tag and C-terminal FLAG-Tag with an observed molecular weight of 18.7 kDa. It shows binding specificity for acetylated H2BK85, H3K9/K14, H3K14, H3K36, H3K56, H3S10/K14/K18, H4K12, H4K20 and H4K44, as well as acetylated p53-K382 , MyoD-K99 and MyoD-K99/K102. The recombinant protein is >95% pure by SDS-PAGE.

CREBBP (1081-1197) Coomassie gel

Recombinant CREBBP (1081-1197) protein gel.
CREBBP (1081-1197) protein was run on an SDS-PAGE gel and stained with Coomassie Blue.

CREBBP (1081-1197) HTRF activity assay

Recombinant CREBBP (1081-1197) HTRF activity assay.
3.3 µM histone peptide H4K5/8/12/16 (4Ac) was incubated with CREBBP (1081-1197) protein in reaction buffer including 50mM HEPES-NaOH pH 7.0, 0.1% BSA for 1 hour at room temperature. Anti-Flag antibody was used to detect reaction products.

for Recombinant CREBBP (1081-1197) proteinStorage

Recombinant proteins in solution are temperature sensitive and must be stored at -80°C to prevent degradation. Avoid repeated freeze/thaw cycles and keep on ice when not in storage.

for Recombinant CREBBP (1081-1197) proteinGuarantee

This product is guaranteed for 6 months from date of receipt.

This product is for research use only and is not for use in diagnostic procedures.


Technical Data Sheet

Recombinant CREBBP (1081-1197) protein

Data Thumbnails

CREBBP (1081-1197) Coomassie gel

CREBBP (1081-1197) Coomassie stained gel.
(Click image to enlarge and see details).

CREBBP (1081-1197) HTRF activity assay

CREBBP (1081-1197) HTRF activity assay.
(Click image to enlarge and see details).