Catalog # CX4165

phospho-CREB (Ser-271) Peptide

Blocking Peptide

Application Dilution
Blocking1:1000
ELISA50 ng/well

Size 50 μg

DATASHEET  




$55

CREB (cyclic AMP response element-binding protein) is a stimulus-induced transcription factor that plays pivotal roles in cell survival and proliferation. CREB is expressed in various tissues, and has important gene-regulating roles in the nervous system. The transactivation function of CREB is primarily regulated through Ser-133 phosphorylation by cAMP-dependent protein kinase A (PKA) and related kinases. CREB is phosphorylated at other sites in response to calcium influx and DNA damage. The DNA-damage responsive nuclear kinase, HIPK2, can phosphorylate Ser-271 but not Ser-133 in CREB, and this phosphorylation activates CREB transactivation function. Mutation of Ser-271 to Glu-271 potentiates the CREB transactivation function. Thus, phosphorylation of Ser-271 may be the mode of activation for CREB-dependent transcription in response to genotoxic stress.

 

References
Sakamoto, K. et al. (2010) Mol. Biol. Cell 21:2966.
Lonze, B.E. & Ginty, D.D. (2002) Neuron 35:605.
Gonzalez, G.A. & Montminy, M.R. (1989) Cell. 59(4):675.


Phospho-CREB (Ser-271) synthetic peptide corresponding to amino acids surrounding Ser-271 in human CREB. This sequence is well conserved in rat, mouse, chicken, and zebrafish CREB. The site has some homology to the conserved site in ATF1 (Ser-198) and CREM (Ser-287).

*For more information, see UniProt Accession P16220
Blocking peptide is supplied in 50µl phosphate-buffered saline and 0.05% sodium azide.

The products are are safely shipped at ambient temperature for both domestic and international shipments. Each product is guaranteed to match the specifications as indicated on the corresponding technical data sheet. Please store at -20C upon arrival for long term storage.

The peptide is specifically recognized by anti-CREB (Ser-271) phospho-specific antibody (CP4161) in ELISA, and has been shown to block the reactivity of CP4161 during Western blot. In addition, the peptide is recommended for use in blocking CP4161 reactivity in immunocytochemistry.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.

This kit contains:

KIT SUMMARY