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Phospho-Ser133 CREB Antibody

Affinity purified rabbit polyclonal antibody

  • WB - Phospho-Ser133 CREB Antibody AN1072
    Western blot of forskolin stimulated rat hippocampal lysate showing specific immunolabeling of the ~45k CREB phosphorylated at Ser133 (Left lane). Phosphospecificity is shown in the right lane where the signal is completely eliminated by treatment with lambda phosphatase (λ-Ptase, 1200 units for 30 min).
  • IHC - Phospho-Ser133 CREB Antibody AN1072
    Immunostaining of cultured rat hippocampal slices showing nuclear labeling of CREB phosphorylated at Ser133 in brown.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession P15337
Reactivity Rat
Predicted Bovine, Chicken, Human, Mouse, Monkey, Rat, Xenopus, Zebrafish
Host Rabbit
Clonality polyclonal
Calculated MW 45 KDa
Additional Information
Gene ID 81646
Gene Name CREB1
Other Names Cyclic AMP-responsive element-binding protein 1, CREB-1, cAMP-responsive element-binding protein 1, Creb1, Creb-1
Target/Specificity Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser133 conjugated to KLH.
Dilution WB~~ 1:1000
IHC~~ 1:100
Format Prepared from rabbit serum by affinity purification via sequential chromatography on phospho- and dephosphopeptide affinity columns.
Antibody Specificity Specific for the ~45k CREB protein phosphorylated at Ser133. Immunolabeling is blocked by λ-phosphatase treatment.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsPhospho-Ser133 CREB Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
ShippingBlue Ice
Research Areas
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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 (Ser133), and phosphorylation of Ser133 are required for CREB-mediated transcription (Johannessen et al., 2004; Kornhauser et al., 2002).


Johannessen M, Delghandi MP, Moens U (2004) What turns CREB on? Cellular Signalling 16:1211-1227.
Karin M, Hunter T (1995) Transcriptional control by protein phosphorylation: Signal transmission from the cell surface to the nucleus. Curr Biol 5:747-757.
Kornhauser JM, Cowan CW, Shaywitz AJ, Dolmetsch RE, Griffith EC, Hu LS, Haddad C, Xia ZG, Greenberg ME (2002) CREB transcriptional activity in neurons is regulated by multiple, calcium-specific phosphorylation events. Neuron 34:221-233.
Montminy M (1997) Transcriptional regulation by cyclic AMP. Annu Rev Biochem 66:807-822.
Shaywitz AJ, Greenberg ME (1999) CREB: A stimulus-induced transcription factor activated by a diverse array of extracellular signals. Annu Rev Biochem 68:821-861.
Silva AJ, Kogan JH, Frankland PW, Kida S (1998) CREB and memory. Annu Rev Neurosci 21:127-148.

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$ 335.00
Cat# AN1072
(40 western blots)
Availability: 7-10 days
Bulk Size
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