CoraLite® Plus 488-conjugated CREB1 Monoclonal antibody

• Featured Product
• KD/KO Validated

CREB1 Monoclonal Antibody for FC (Intra)

Host / Isotype

Mouse / IgG1

Reactivity

human, mouse, rat

Applications

FC (Intra)

Conjugate

CoraLite® Plus 488 Fluorescent Dye

CloneNo.

1E11C1

Cat no : CL488-67927

Synonyms

Cyclic AMP-responsive element-binding protein 1, CREB-1, CREB 1, CREB, cAMP-responsive element-binding protein 1

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Validation Data Gallery

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  FC experiment of HeLa using CL488-67927

  1X10^6 HeLa cells were intracellularly stained with 0.4 ug CoraLite® Plus 488 Anti-Human CREB1 (CL488-67927, Clone:1E11C1) (red), or 0.4 ug Control Antibody. Cells were fixed and permeabilized with Transcription Factor Staining Buffer Kit (PF00011).

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Tested Applications

• Positive FC (Intra) detected in: HeLa cells

Recommended dilution

• Flow Cytometry (FC) (INTRA): FC (INTRA) : 0.40 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

CL488-67927 targets CREB1 in FC (Intra) applications and shows reactivity with human, mouse, rat samples.

• Tested Reactivity: human, mouse, rat
• Host / Isotype: Mouse / IgG1
• Class: Monoclonal
• 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 Number: BC010636
• Gene Symbol: CREB1
• Gene ID (NCBI): 1385
• Conjugate: CoraLite® Plus 488 Fluorescent Dye
• Excitation/Emission Maxima Wavelengths: 493 nm / 522 nm
• Form: Liquid
• Purification Method: Protein G purification
• Storage Buffer: PBS with 50% Glycerol, 0.05% Proclin300, 0.5% BSA, pH 7.3.
• Storage Conditions: Store at -20°C. Avoid exposure to light. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC 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 ).

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