Our Anti-CREB (Ser133) rabbit polyclonal phosphospecific primary antibody from PhosphoSolutions is produced in-house. It detects rat CREB (Ser133) and is antigen affinity purified from pooled serum. It is great for use in WB, IHC.
Immunolabeling of a section of mouse piriform cortex labeled with Anti-Phospho-Ser133 CREB (cat. p1010-133, red, 1:1000). Cell nuclei are visualized with DAPI DNA stain (blue).
Anti-CREB (Ser133) Antibody
It is well known that the control of gene expression involves activation of protein kinase cascades that regulate transcription factors within the nucleus (Karin and Hunter, 1995). The cyclic AMP response element binding protein (CREB) is one of the best characterized stimulus-induced transcription factors (Montminy, 1997). This transcription factor is a component of intracellular signaling events that regulate a wide range of biological functions, from spermatogenesis to circadian rhythms and memory (Shaywitz and Greenberg, 1999; Silva et al., 1998). A variety of protein kinases including protein kinase A (PKA), mitogen-activated protein kinases (MAPKs), and Ca2+/calmodulin-dependent protein kinases (CaMKs) phosphorylate CREB at serine 133 (Ser-133), and phosphorylation of Ser-133 are required for CREB-mediated transcription (Johannessen et al., 2004; Kornhauser et al., 2002).
Antigen Affinity Purified from Pooled Serum
Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser133 of rat CREB, conjugated to keyhole limpet hemocyanin (KLH).
Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.
Prepared from pooled rabbit serum by affinity purification via sequential chromatography on phospho and non-phosphopeptide affinity columns.
10 mM HEPES (pH 7.5), 150 mM NaCl, 100 µg per ml BSA and 50% glycerol.
WB Brain: 1:1000
Specific for endogenous levels of the ~45 kDa CREB protein phosphorylated at Ser133. Immunolabeling is completely eliminated by treatment with λ-phosphatase.
Western blots performed on each lot.
For research use only. Not intended for therapeutic or diagnostic use. Use of all products is subject to our terms and conditions, which can be viewed on our website.
After date of receipt, stable for at least 1 year at -20°C.
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Bu, W., et al. 2016. Mild traumatic brain injury produces neuron loss that can be rescued by modulating microglial activation using a CB2 receptor inverse agonist. Frontiers in neuroscience, 10, p.449.