Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Phospho-CREB (Ser133) Rabbit anti-Human, Rat, Polyclonal, Invitrogen™

Rabbit Polyclonal Antibody

Manufacturer:  Invitrogen PA1851B

Catalog No. PA1851B

Add to cart



PA1-851B detects the phosphorylated form of cyclic-AMP response element binding protein (CREB) from rat and human cells. This antibody does not detect the unphosphorylated form of CREB. PA1-851B has been successfully used in Western blot procedures. By Western blot, this antibody detects an ~43 kDa protein representing phospho-CREB from forskolin treated PC12 cell lysate. The PA1-851B immunogen is a synthetic phospeptide corresponding to residues K(123) R R E I L S R R P S(p) Y R K(136) of human CREB. This sequence is completely conserved between human, bovine, canine, mouse, pig, sheep, and rat CREB protein. The PA1-851B immunizing peptide (Cat. No. PEP-143) is available for use in neutralization and control experiments.

CREB (Cyclic AMP response element binding protein) is a 43 kDa basic/leucine zipper transcription factor that binds the cyclic AMP response element (CRE) and activates transcription in response to a variety of extracellular signals including neurotransmitters, hormones, membrane depolarization, and growth and neurotrophic factors. Activation of CREB is dependent upon the phosphorylation of serine 133. Phosphorylation of CREB occurs via p44/42 MAP kinase and p90RSK, and via p38 MAP kinase and MSK1. Although CREB will bind DNA independent of its phosphorylation state, only the phosphorylated form is competent as a transcription factor. CREB binding protein (CBP), a transcriptional coactivator that directly interacts with CREB, binds to CREB in the region of serine 133. CREB is involved in different cellular processes including the synchronization of circadian rhythmicity, differentiation of adipose cells, and learning and memory. In humans, the gene is located on the q arm of chromosome 2. Diseases associated with CREB dysfunction include Alzheimer’s Disease, histiocytoma and soft tissue melanoma.


Phospho-CREB (Ser133)
Synthetic phosphopeptide corresponding to residues K(123) R R E I L S R R P S(p) Y R K(136) of human CREB.
Affinity chromatography
Human, Rat
Western Blot
0.25 mg/mL
PBS with 1mg/mL BSA and 0.05% sodium azide
P16220, P15337
Phospho-Cyclic AMP Response Element Binding Protein
100 μL
-20° C, Avoid Freeze/Thaw Cycles
1385, 81646
Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit