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  • KD/KO Validated

CREB1 Polyclonal antibody

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

Host / Isotype

Rabbit / IgG


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





Cat no : 12208-1-AP



Tested Applications

Positive WB detected inHEK-293 cells, rat brain tissue, Jurkat cells, COS-7 cells, mouse brain tissue, mouse lung tissue, HeLa cells, HepG2 cells, NIH/3T3 cells, PC-12 cells, PC-3 cells, HL-60 cells, A431 cells, MCF-7 cells, K-562 cells
Positive IP detected inHEK-293 cells
Positive IHC detected inmouse brain tissue, human cervical cancer 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 : 1:2000-1:12000
Immunoprecipitation (IP)IP : 0.5-4.0 ug for 1.0-3.0 mg of total protein lysate
Immunohistochemistry (IHC)IHC : 1:500-1:2000
Immunofluorescence (IF)IF : 1:50-1:500
Flow Cytometry (FC)FC : 0.25 ug per 10^6 cells in a 100 µl suspension
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

12208-1-AP targets CREB1 in WB, IP, IF, FC, RIP, IHC, CoIP, 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 MethodAntigen 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. 20ul sizes contain 0.1% BSA.

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

Lactate modulates iron metabolism by binding soluble adenylyl cyclase

Authors - Wei Liu

Cell Metab

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

Authors - Qidong Li
  • KD Validated

Mol Cell

LKB1 controls inflammatory potential through CRTC2-dependent histone acetylation

Authors - Shelby E Compton

Mol Cancer

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

Authors - Bing Yao

Environ Int

Exposure to dithiocarbamate fungicide maneb in vitro and in vivo: Neuronal apoptosis and underlying mechanisms

Authors - Chaoyang Liu

Int J Biol Sci

Chronic stress promotes colorectal cancer progression by enhancing glycolysis through β2-AR/CREB1 signal pathway

Authors - Yunfeng Guan


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


Georgiana (Verified Customer) (01-10-2023)

  • Applications: Immunofluorescence
  • Primary Antibody Dilution: 1:500
  • Cell Tissue Type: Mouse brain tissue, cortex, 20um section
CREB1 Antibody Immunofluorescence validation (1:500 dilution) in Mouse brain tissue, cortex, 20um section (Cat no:12208-1-AP)

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