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  • KD/KO Validated

CREB1 Polyclonal antibody

CREB1 Polyclonal Antibody for FC, IF, IHC, IP, WB, ELISA

Host / Isotype

Rabbit / IgG


human, mouse, rat, monkey and More (2)





Cat no : 12208-1-AP



Tested Applications

Positive WB detected inmulti-cells/tissue, mouse lung tissue, HEK-293 cells, rat brain tissue, Jurkat cells, COS-7 cells, mouse brain tissue, HeLa cells, PC-3 cells, HL-60 cells, A431 cells, MCF-7 cells, K-562 cells, NIH/3T3 cells, HepG2 cells, PC-12 cells
Positive IP detected inHEK-293 cells
Positive IHC detected inhuman cervical cancer tissue, mouse brain tissue, human prostate cancer tissue, human thyroid tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inHeLa cells, HEK-293 cells
Positive FC detected inHEK-293 cells

Recommended dilution

Western Blot (WB)WB : 1:500-1:3000
Immunoprecipitation (IP)IP : 0.5-4.0 ug for IP and 1:500-1:1000 for WB
Immunohistochemistry (IHC)IHC : 1:50-1:500
Immunofluorescence (IF)IF : 1:50-1:500
Sample-dependent, check data in validation data gallery

Product Information

12208-1-AP targets CREB1 in WB, IP, IHC, IF, FC, chIP, ELISA applications and shows reactivity with human, mouse, rat, monkey samples.

Tested Reactivity human, mouse, rat, monkey
Cited Reactivityhuman, mouse, rat, chicken, sea cucumbers
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen CREB1 fusion protein Ag2852
Full Name cAMP responsive element binding protein 1
Calculated molecular weight 341 aa, 35 kDa
Observed molecular weight 43-46 kDa
GenBank accession numberBC010636
Gene symbol CREB1
Gene ID (NCBI) 1385
Conjugate Unconjugated
Form Liquid
Purification Method Antigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.

Background Information

CREB1, also named as CREB, belongs to the bZIP family, containing one bZIP domain and one KID (kinase-inducible) domain. This protein binds the cAMP response element (CRE), a sequence present in many viral and cellular promoters. CREB stimulates transcription on binding to the CRE. This protein is 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. Transcription activation is enhanced by the TORC coactivators which act independently of Ser-133 phosphorylation. CREB1 is sumoylated by 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. Defects in CREB1 may be a cause of angiomatoid fibrous histiocytoma (AFH), a distinct variant of malignant fibrous histiocytoma that typically occurs in children and adolescents and is manifest by nodular subcutaneous growth. A chromosomal aberration involving CREB1 is found in a patient with angiomatoid fibrous histiocytoma. Translocation t(2;22)(q33;q12) with CREB1 generates a EWSR1/CREB1 fusion gene that is most common genetic abnormality in this tumor type. CREB1 exists some isoforms and range of calculated molecular weight of isoforms are 35-37 kDa and 25 kDa, but the modified CREB1 protein is about 43 kDa (PMID: 25883219 ).


Product Specific Protocols
WB protocol for CREB1 antibody 12208-1-APDownload protocol
IHC protocol for CREB1 antibody 12208-1-APDownload protocol
IF protocol for CREB1 antibody 12208-1-APDownload protocol
IP protocol for CREB1 antibody 12208-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols



Cell Metab

CircACC1 Regulates Assembly and Activation of AMPK Complex under Metabolic Stress.

Authors - Qidong Li
  • KD Validated

Mol Cancer

CircEZH2/miR-133b/IGF2BP2 aggravates colorectal cancer progression via enhancing the stability of m6A-modified CREB1 mRNA.

Authors - Bing Yao

Clin Transl Med

Saikosaponin-d impedes hippocampal neurogenesis and causes cognitive deficits by inhibiting the survival of neural stem/progenitor cells via neurotrophin receptor signaling in mice.

Authors - Tingting Qin

J Pathol

Dysregulation of hepatic cAMP levels via altered Pde4b expression plays a critical role in alcohol-induced steatosis.

Authors - Diana V Avila

J Neurosci

BDNF-dependent recycling facilitates TrkB translocation to postsynaptic density during LTP via a Rab11-dependent pathway.

Authors - Huang Shu-Hong SH

Cancer Commun (Lond)

KDELR2 promotes breast cancer proliferation via HDAC3-mediated cell cycle progression.

Authors - Haoran Wei


The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.


Shogo (Verified Customer) (02-22-2019)

Approximately 50 mg of whole brain were applied to ChIP assay.Fragmented DNA was immunoprecipitated with the CREB antibody (250 ng) at 4 oC for overnight.

  • Applications: ChIP,
  • Cell Tissue Type: Brain