Rabbit Polyclonal CREB phospho S129 + S133 antibody. Suitable for WB, ICC/IF and reacts with Mouse, Human samples. Cited in 7 publications. Immunogen corresponding to Synthetic Peptide within Human CREB1 phospho S129.
pH: 7.3
Preservative: 0.05% Sodium azide
Constituents: PBS, 50% Glycerol (glycerin, glycerine), 0.1% BSA
WB | ICC/IF | |
---|---|---|
Human | Tested | Tested |
Mouse | Tested | Expected |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info 1/1000 | Notes - |
Species Human | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/100.00000 - 1/500.00000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
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Phosphorylation-dependent transcription factor that stimulates transcription upon binding to the DNA cAMP response element (CRE), a sequence present in many viral and cellular promoters (By similarity). Transcription activation is enhanced by the TORC coactivators which act independently of Ser-119 phosphorylation (PubMed:14536081). Involved in different cellular processes including the synchronization of circadian rhythmicity and the differentiation of adipose cells (By similarity). Regulates the expression of apoptotic and inflammatory response factors in cardiomyocytes in response to ERFE-mediated activation of AKT signaling (By similarity).
Cyclic AMP-responsive element-binding protein 1, CREB-1, cAMP-responsive element-binding protein 1, CREB1
Rabbit Polyclonal CREB phospho S129 + S133 antibody. Suitable for WB, ICC/IF and reacts with Mouse, Human samples. Cited in 7 publications. Immunogen corresponding to Synthetic Peptide within Human CREB1 phospho S129.
pH: 7.3
Preservative: 0.05% Sodium azide
Constituents: PBS, 50% Glycerol (glycerin, glycerine), 0.1% BSA
Purified from rabbit serum by sequential epitope-specific chromatography. The antibody has been negatively preadsorbed using a spanning peptide corresponding to the cleavage-site to remove antibody that is reactive with non-phosphorylated CREB. The final product is generated by affinity chromatography using a CREB-derived peptide that is phosphorylated at serines 129 and 133.
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CAMP response element-binding protein better known as CREB functions as a transcription factor that regulates gene expression. CREB protein operates by binding to specific DNA sequences called cAMP response elements in the promoters of target genes leading to increased or altered transcription. The protein has a molecular weight around 43 kDa. Expressed broadly in many tissues CREB's activity is particularly high in the brain where it plays key roles in neuronal functions. Researchers also refer to phospho-CREB when discussing the activated form of this protein often analyzed through methods like CREB Western blot.
CREB contributes significantly to cellular processes such as proliferation differentiation and survival through transcriptional regulation. CREB does not function alone; it frequently associates with other proteins forming complexes to exert its regulatory roles. Additionally CREB influences the development of memory and learning in neurons highlighting its extensive involvement in neurophysiological processes.
CREB plays a substantial role in the cAMP signaling pathway as well as the mitogen-activated protein kinase (MAPK) pathway. Through its interaction with kinases and other signaling proteins CREB influences numerous downstream targets affecting cellular responses to external stimuli. Notably protein kinase A (PKA) activates CREB by phosphorylation facilitating its role in various signal transduction pathways and linking it to downstream transcriptional events.
Research links CREB to neurological disorders and some forms of cancer. Aberrant CREB activity associates with neurodegenerative diseases like Alzheimer’s where dysregulated gene expression impacts neuronal viability and function. Furthermore in cancer CREB's role in cell proliferation and survival ties it to oncogenes such as BCL2 where abnormal CREB function can promote tumorigenesis. Understanding these connections provides valuable insights for therapeutic strategies against such diseases.
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The membrane was incubated with goat F(ab')2 anti-rabbit IgG HRP conjugate and signals were detected using the Pierce SuperSignal™ method.
All lanes: Western blot - Anti-CREB (phospho S129 + S133) antibody (ab10564) at 1/1000 dilution
Lane 1: NIH3T3 cell extract
Lane 2: NIH3T3 treated with 50 ng/mL PDGF for 15 minutes cell extract
Lane 3: NIH3T3 treated with 50 ng/mL PDGF for 15 minutes cell extract, incubated with the non-phosphopeptide corresponding to the phosphopeptide immunogen
Lane 4: NIH3T3 treated with 50 ng/mL PDGF for 15 minutes cell extract, incubated with a generic phosphoserine-containing peptide
Lane 5: NIH3T3 treated with 50 ng/mL PDGF for 15 minutes cell extract, incubated with the phosphopeptide immunogen
Lane 6: NIH3T3 treated with 50 ng/mL PDGF for 15 minutes cell extract, treated with lambda phosphatase
Predicted band size: 36 kDa
All lanes: Western blot - Anti-CREB (phospho S129 + S133) antibody (ab10564) at 0.5 µg/mL
Lane 1: Human A549 whole cell extract at 20000 Cells
Lane 2: Human A549 whole cell extract stimulated with EGF at 20000 Cells
Lane 3: Human A549 whole cell extract treated with pervanadate at 20000 Cells
All lanes: Anti-mouse, HRP-conjugated
Developed using the ECL technique.
Predicted band size: 36 kDa
Exposure time: 30s
All lanes: Western blot - Anti-CREB (phospho S129 + S133) antibody (ab10564) at 1/1000 dilution
Lane 1: NIH/3T3 cell lysate at 20 µg
Lane 2: NIH/3T3 treated for 10 minutes with 50 ng/mL of PDGF cell lysate at 20 µg
Lane 3: NIH/3T3 treated for 10 minutes with 200 ng/mL of EGF cell lysate at 20 µg
Lane 4: A549 cell lysate at 20 µg
Lane 5: A549 treated for 10 minutes with 200 ng/mL of EGF cell lysate at 20 µg
Lane 6: A431 cell lysate at 20 µg
Lane 7: SK-N-SH cell lysate at 20 µg
Lane 8: MCF7 cell lysate at 20 µg
Lane 9: MDA-MB-231 cell lysate at 20 µg
All lanes: Goat Anti-Rabbit IgG - HRP at 1/5000 dilution
Developed using the ECL technique.
Predicted band size: 36 kDa
Observed band size: 35 kDa, 43 kDa
Immunofluorescent analysis of CREB (phospho S129/pS133) was done on 70% confluent log phase HeLa cells. The cells were fixed with 4% paraformaldehyde for 15 minutes, permeabilized with 0.25% Triton X-100 for 10 minutes, and blocked with 5% BSA for 1 hour at room temperature. The cells were labeled with CREB (phospho S129/pS133) Rabbit polyclonal Antibody (ab10564) at 2 μg/mL in 1% BSA and incubated for 3 hours at room temperature and then labeled with Alexa Fluor 488 Goat Anti-Rabbit IgG Secondary Antibody at a dilution of 1/400 for 30 minutes at room temperature (Panel a: green). Nuclei (Panel b: blue) were stained with SlowFade® Gold Antifade Mountant with DAPI. F-actin (Panel c: red) was stained with Alexa Fluor 594 Phalloidin. Panel d is a merged image showing nuclear localization. Panel e shows no primary antibody control. The images were captured at 20X magnification.
Image collected and cropped by CiteAb under a CC-BY license from the publication
CREB (phospho S129 + S133) western blot using anti-CREB (phospho S129 + S133) antibody ab10564. Publication image and figure legend from Harmon, E. B., Porter, J. M., et al., 2005, Cell Commun Signal, PubMed 16091148.
ab10564 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab10564 please see the product overview.
PKA inhibitors H-89 and Rp-cAMPS block phosphorylation of CREB. After a 30 min pre-incubation with serum-free DMEM alone or with 100 nM of H-89 or 10 μM of Rp-cAMPS, UROtsa cells were stimulated with 100 nM isoproterenol in serum-free DMEM for the indicated times and immunoblotted with an antibody specific to CREB phosphorylated at S129 and S133 (pCREB). Without inhibitor pretreatment, isoproterenol induced CREB phosphorylation within 5 min. Significant phosphorylation was still observed 15 min. after drug addition with banding intensity patterns similar to basal after 60 min. Preincubation with H-89 or Rp-cAMPS significantly decreased the phosphorylation of CREB at the 5 and 15 min time points in UROtsa cells, demonstrating the effectiveness of PKA inhibition for these compounds. As reported by the antibody suppliers, pCREB is identified as a band running at 43 kD. The second band seen on the autoradiographs represents a previously-reported alternative splice variant of CREB. Autoradiographs are representative immunoblots of n = 3 independent cell treatments.
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