This antibody detects endogenous levels of CREB only when phosphorylated at Serine 129.
Purification
Afinity Chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.
Immunogen
The antiserum was produced against synthesized phosphopeptide derived from human CREB around the phosphorylation site of Serine 129 (I-L-SP-R-R).
CREB1
Reactivity: Human
WB, IHC, ELISA, IF
Host: Rabbit
Monoclonal
3C11
unconjugated
Recombinant Antibody
Application Notes
Western Blot: 1/500approx. 1/1000. Immunohistochemistry: 1/50approx. 1/100. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Concentration
1.0 mg/mL
Buffer
PBS (without Mg2+ and Ca2+), pH 7.4 containing 150 mM NaCl, 0.02 % Sodium Azide and 50 % Glycerol.
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Handling Advice
Avoid repeated freezing and thawing.
Storage
-20 °C
Storage Comment
Store the antibody (in aliquots) at -20 °C.
Target
CREB1
(cAMP Responsive Element Binding Protein 1 (CREB1))
Alternative Name
CREB1
Background
Cyclic AMP Response Element Binding protein (CREB) is a 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 occurs via p44 / 42 MAP kinase and p90RSK and also via p38 MAP kinase and MSK 1. 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 appears to play an important role in learning and memory. CREB knock out mice show diminished learning ability. Alternate splicing of this gene results in two transcript variants encoding different isoforms.Synonyms: CREB-1, Cyclic AMP-responsive element-binding protein 1, cAMP-responsive element-binding protein 1