Phospho-CREB (Ser133) (87G3) R

4095:

Western Blotting

Phospho-CREB (Ser133) (87G3) Rabbit mAb (Biotinylated) detects endogenous levels of CREB only when phosphorylated at Ser133. The antibody also detects the phosphorylated form of the CREB-related protein ATF-1.

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser133 of human CREB.

Western Blotting

Western blot analysis of extracts from SK-N-MC cells, untreated or Forskolin- and IBMX-treated, using Phospho-CREB (Ser133) (87G3) Rabbit mAb (Biotinylated).

This Cell Signaling Technology (CST) antibody is conjugated to biotin under optimal conditions. The unconjugated Phospho-CREB (Ser133) (87G3) Rabbit mAb #9198 reacts with human, mouse and rat phospho-CREB (Ser133) protein. CST expects that Phospho-CREB (Ser133) (87G3) Rabbit mAb (Biotinylated) #4095 will also recognize phospho-CREB (Ser133) in these species.

CREB is a bZIP transcription factor that activates target genes through cAMP response elements. CREB is able to mediate signals from numerous physiological stimuli, resulting in regulation of a broad array of cellular responses. While CREB is expressed in numerous tissues, it plays a large regulatory role in the nervous system. CREB is believed to play a key role in promoting neuronal survival, precursor proliferation, neurite outgrowth, and neuronal differentiation in certain neuronal populations (1-3). Additionally, CREB signaling is involved in learning and memory in several organisms (4-6). CREB is able to selectively activate numerous downstream genes through interactions with different dimerization partners. CREB is activated by phosphorylation at Ser133 by various signaling pathways including Erk, Ca²⁺ , and stress signaling. Some of the kinases involved in phosphorylating CREB at Ser133 are p90RSK, MSK, CaMKIV, and MAPKAPK-2 (7-9).

1. Lonze, B.E. et al. (2002) Neuron 34, 371-85.
2. Lee, M.M. et al. (1999) J Neurosci Res 55, 702-12.
3. Redmond, L. et al. (2002) Neuron 34, 999-1010.
4. Dash, P.K. et al. (1990) Nature 345, 718-21.
5. Yin, J.C. et al. (1994) Cell 79, 49-58.
6. Guzowski, J.F. and McGaugh, J.L. (1997) Proc Natl Acad Sci USA 94, 2693-8.
7. Xing, J. et al. (1998) Mol Cell Biol 18, 1946-55.
8. Ribar, T.J. et al. (2000) J Neurosci 20, RC107.
9. Tan, Y. et al. (1996) EMBO J 15, 4629-42.

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know !

• 3999 Streptavidin-HRP
• 7720 Prestained Protein Marker, Broad Range (Premixed Format)
• 7727 Biotinylated Protein Ladder Detection Pack
• 7003 20X LumiGLO^® Reagent and 20X Peroxide
• 9191 Phospho-CREB (Ser133) Antibody
• 9193 CREB Control Cell Extracts
• 9196 Phospho-CREB (Ser133) (1B6) Mouse mAb
• 9197 CREB (48H2) Rabbit mAb
• 4034 CREB (48H2) Rabbit mAb (Biotinylated)

Rabbit monoclonal antibody is produced under license (granting certain rights including those under U. S. Patent No. 5,675,063 and U.S.S.N. 11/476,277) from Epitomics, Inc.

For Research Use Only. Not For Use In Diagnostic Procedures.