anti-CREB phospho (Ser133) antibody

anti-CREB phospho (Ser133) antibody for IHC-Formalin-fixed paraffin-embedded sections,Western blot and Human,Mouse,Rat

Gene Regulation antibody; Immune System antibody; Signaling Transduction antibody


Product Description Rabbit Polyclonal antibody recognizes CREB phospho (Ser133)
Tested Reactivity Hu, Ms, Rat
Tested Application IHC-P, WB
Host Rabbit
Clonality Polyclonal
Isotype IgG
Target Name CREB
Antigen Species Human
Immunogen Peptide sequence around phosphorylation site of serine 133 (R-P-S(p)-Y-R) derived from Human CREB.
Conjugation Un-conjugated
Alternate Names Cyclic AMP-responsive element-binding protein 1; CREB; CREB-1; cAMP-responsive element-binding protein 1

Application Instructions

Application Suggestion
Tested Application Dilution
IHC-P1:50 - 1:100
WB1:500 - 1:1000
Application Note * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.


Form Liquid
Purification Antibodies were produced by immunizing rabbits with KLH-conjugated synthetic phosphopeptide. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. In addition, non-phospho specific antibodies were removed by chromatogramphy using non-phosphopeptide.
Buffer PBS (without Mg2+ and Ca2+, pH 7.4), 150mM NaCl, 0.02% Sodium azide and 50% Glycerol.
Preservative 0.02% Sodium azide
Stabilizer 50% Glycerol
Concentration 1 mg/ml
Storage Instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.


Database Links

GeneID: 12912 Mouse CREB1

GeneID: 1385 Human CREB1

GeneID: 81646 Rat CREB1

Gene Symbol CREB1
Gene Full Name cAMP responsive element binding protein 1
Background CREB is a transcription factor. It is a member of the leucine zipper family of DNA binding proteins. This protein binds as a homodimer to the cAMP-responsive element, an octameric palindrome. The protein is phosphorylated by several protein kinases, and induces transcription of genes in response to hormonal stimulation of the cAMP pathway. Alternate splicing of this gene results in several transcript variants encoding different isoforms. [provided by RefSeq, Mar 2016]
Function CREB is a phosphorylation-dependent transcription factor. It stimulates transcription upon binding to the DNA cAMP response element (CRE), a sequence present in many viral and cellular promoters. Transcription activation is enhanced by the TORC coactivators which act independently of Ser-133 phosphorylation. Involved in different cellular processes including the synchronization of circadian rhythmicity and the differentiation of adipose cells. [UniProt]
Highlight Related Antibody Duos and Panels:
ARG30024 Phospho CREB (pS133) / Phospho beta Catenin (pS37) Antibody Duo
ARG30098 Phospho CREB Antibody Duo (Total, pS133)
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CREB antibodies; CREB Duos / Panels; Anti-Rabbit IgG secondary antibodies;
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Research Area Gene Regulation antibody; Immune System antibody; Signaling Transduction antibody
Calculated MW 37 kDa
PTM Stimulated by phosphorylation. Phosphorylation of both Ser-133 and Ser-142 in the SCN regulates the activity of CREB and participates in circadian rhythm generation. Phosphorylation of Ser-133 allows CREBBP binding. In liver, phosphorylation is induced by fasting or glucagon in a circadian fashion (By similarity). CREBL2 positively regulates phosphorylation at Ser-133 thereby stimulating CREB1 transcriptional activity (By similarity). Phosphorylated upon calcium influx by CaMK4 and CaMK2 on Ser-133. CaMK4 is much more potent than CaMK2 in activating CREB. Phosphorylated by CaMK2 on Ser-142. Phosphorylation of Ser-142 blocks CREB-mediated transcription even when Ser-133 is phosphorylated. Phosphorylated by CaMK1 (By similarity). Phosphorylation of Ser-271 by HIPK2 in response to genotoxic stress promotes CREB1 activity, facilitating the recruitment of the coactivator CBP. Phosphorylated at Ser-133 by RPS6KA3, RPS6KA4 and RPS6KA5 in response to mitogenic or stress stimuli.
Sumoylated with SUMO1. Sumoylation on Lys-304, but not on Lys-285, is required for nuclear localization of this protein. Sumoylation is enhanced under hypoxia, promoting nuclear localization and stabilization.

Images (2) Click the Picture to Zoom In

  • ARG51556 anti-CREB phospho (Ser133) antibody WB image

    Western blot: Extracts from HeLa cells untreated or treated with UV stained with ARG51556 anti-CREB phospho (Ser133) antibody.

  • ARG51556 anti-CREB phospho (Ser133) antibody IHC-P image

    Immunohistochemistry: Paraffin-embedded Human breast carcinoma tissue stained with ARG51556 anti-CREB phospho (Ser133) antibody (left) or the same antibody preincubated with blocking peptide (right).