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SRP5173

Sigma-Aldrich

CBP (1319-1710), GST tagged human

recombinant, expressed in E. coli, ≥70% (SDS-PAGE), buffered aqueous glycerol solution

Synonym(s):

CREBBP, RSTS, RTS

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About This Item

CAS Number:
2226029-28-1
UNSPSC Code:
12352200
NACRES:
NA.32

biological source

human

recombinant

expressed in E. coli

Assay

≥70% (SDS-PAGE)

form

buffered aqueous glycerol solution

mol wt

~71 kDa

NCBI accession no.

NM_004380

application(s)

cell analysis

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... CREBBP(1387)

Biochem/physiol Actions

CBP or CREB-binding protein is a nuclear transcriptional coactivator protein that binds specifically to the PKA-phosphorylated form of the CREB protein. Microinjection of an anti-CBP antiserum into fibroblasts leads to inhibition of transcription from a cAMP promoter. CBP can also cooperates with upstream activators, such as JUN. When JUN is phosphorylated at the transcriptionally stimulatory sites ser73 and ser63, it binds CBP with comparable affinity to CREB. Insulin signaling may directly regulate many cAMP signaling pathways at the transcriptional level by controlling CBP recruitment. Mutant CBP can be aberrantly recruited to CREB protein, resulting in inappropriate activation of gluconeogenesis and glucose intolerance.

Physical form

Supplied in 50mM Tris-HCl, pH 7.5, 150mM NaCl, 10mM glutathione, 0.1mM EDTA, 0.25mM DTT, 0.1mM PMSF, 25% glycerol.

Preparation Note

after opening, aliquot into smaller quantities and store at -70 °C. Avoid repeating handling and multiple freeze/thaw cycles

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Haihong Zhong et al.
Molecular cell, 9(3), 625-636 (2002-04-05)
Homodimers of the NF-kappa B p50 subunit are transcriptionally repressive in cells, whereas they can promote transcription in vitro, suggesting that their endogenous effects are mediated by association with other factors. We now demonstrate that transcriptionally inactive nuclear NF-kappaB in
J Arias et al.
Nature, 370(6486), 226-229 (1994-07-21)
A number of signalling pathways stimulate transcription of target genes through nuclear factors whose activities are primarily regulated by phosphorylation. Cyclic AMP regulates the expression of numerous genes, for example, through the protein kinase-A (PKA)-mediated phosphorylation of transcription factor CREB

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