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Key Documents

MABN1780

Sigma-Aldrich

Anti-Cereblon Antibody, clone 3B12F7

clone 3B12F7, from mouse

Synonym(s):

Cereblon, Protein cereblon

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.43

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

3B12F7, monoclonal

species reactivity

human

species reactivity (predicted by homology)

mouse (based on 100% sequence homology)

technique(s)

immunohistochemistry: suitable (paraffin)
western blot: suitable

isotype

IgG1κ

NCBI accession no.

UniProt accession no.

shipped in

ambient

target post-translational modification

unmodified

Gene Information

human ... CRBN(51185)

General description

Protein cereblon (UniProt Q96SW2) is encoded by the CRBN (also known as AD-006, MRT2A) gene (Gene ID 51185) in human. Originally identified as a genetic cause of inherited autosomal recessive mental retardation, the human CRBN gene encodes a substrate receptor of a ubiquitin E3 cullin 4-RING ligase (CRL4) complex. A cullin-4 (CULT4) protein provides a scaffold for assembling RING box-domain protein (​RBX1) and the adaptor protein damaged ​DNA-binding protein 1 (​DDB1) to form a CRL4 E3 complex, where ​RBX1 serves as the docking site for the activated E2 protein, and ​DDB1 recruits substrate-specificity receptors or DCAFs (DDB1-cullin 4-associated factors) to form the substrate-presenting side of the CRL4 complex. Thalidomide and its analogs (lenalidomide, pomalidomide and apremilast) are immunomodulatory drugs (IMiDs) that exert their antiproliferative effects on multiple myeloma (MM) cells and immunomodulatory effects on T cells by directly binding cereblon and promoting recruitment of the hematopoietic zinc-finger transcription factors Ikaros (IKZF1) and Aiolos (IKZF3), leading to their ubiquitination and proteasomal degradation. Human cereblon is a 442-amino acid protein composed of a ​Lon protease-like scaffold (a.a. 80-317) with a helical insertion that mediates ​DDB1 binding and a thalidomide-binding domain (TBD; a.a. 339-442).

Specificity

Clone 3B12F7 was raised against an N-terminal sequence present in human cereblon spliced isoforms 1&2 and murine cereblon spliced isoforms 1&3 (UniProt Q96SW2 and Q8C7D2). Immunogen sequence is well conserved in essentially all mammalian species.

Immunogen

KLH-conjugated linear peptide corresponding to a sequence near the N-terminus of human cereblon.

Application

Detect Cereblon using this mouse monoclonal Anti-Cereblon Antibody, clone 3B12F7, Cat. No. MABN1780, validated for use in Immunohistochemistry (Paraffin) and Western Blotting.
Western Blotting Analysis: A 1:500 dilution from a representative lot detected cereblon in 10 µg of HEK293 cell lysate.

Immunohistochemistry Analysis: A 1:50 dilution from a representative lot detected cereblon in human crebral cortex, kidney, and tonsil tissue sections.


Quality

Evaluated by Western Blotting in Jurkat cell lysate.

Western Blotting Analysis: A 1:500 dilution of this antibody detected cereblon in 10 µg of Jurkat cell lysate.

Target description

~50 kDa observed. 50.55/50.48 kDa (human isoform 1/2) and 50.88/50.81 kDa (mouse isoform 1/3) calculated. Uncharacterized bands may be observed in some lysate(s).

Physical form

Format: Purified

Other Notes

Concentration: Please refer to lot specific datasheet.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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