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04-1506

Sigma-Aldrich

Anti-CTCF Antibody, clone 1.2.1.5.4

clone 1.2.1.5.4, from mouse

Synonym(s):

11 zinc finger transcriptional repressor, 11-zinc finger protein, CCCTC-binding factor, CCCTC-binding factor (zinc finger protein), CTCFL paralog, transcriptional repressor CTCF

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified antibody

antibody product type

primary antibodies

clone

1.2.1.5.4, monoclonal

species reactivity

human

technique(s)

ChIP: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG1κ

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... CTCF(10664)

General description

CTCF, also known as CCCTC-binding factor, contains 11 zinc finger (ZF) binding domains that allow it to bind different DNA target sequences and proteins. This multifunctional protein can act as a transcriptional activator or repressor. As a transcriptional repressor, CTCF, binds to promoters of vertebrate c-myc gene. It also binds to the PLK and PIM1 promoters. CTCF may prevent the access of transcriptional activators to enhancers. CTCF also acts as a transcriptional activator of APP. It is involved in different aspects of gene regulation including promoter activation or repression, hormone-responsive gene silencing, methylation-dependent chromatin insulation, and genomic imprinting. Mutations of CTCF in this gene have been associated with invasive breast cancers, prostate cancers, and Wilms tumors, suggesting a role for CTCF may as a tumor suppressor.

Specificity

This antibody recognizes CTCF.

Immunogen

His-tagged recombinant protein corresponding to human CTCF.

Application

Anti-CTCF Antibody, clone 1.2.1.5.4 is a Mouse Monoclonal Antibody for detection of CTCF also known as 11-zinc finger protein, CCCTC-binding factor & has been validated in WB, IP & IHC.
Chromatin Immunoprecipitation Analysis:
A representative lot was used by an independent laboratory in ChIP. (Pugacheva, E., et al. (2005). Human Molecular Genetics. 14(7):953–965.)

Quality

Evaluated by Western Blot in K562 cell lysate.

Western Blot Analysis: 1 µg/ml of this antibody detected CTCF on 10 µg of K562 cell lysate.

Target description

~ 130 kDa
Note: Poly(ADP-ribosyl)ated isoform, C-terminal truncation, or sumoylation will cause variable migration of CTCF protein on SDS–PAGE, which may present CTCF with different molecular weight on Western Blot. Modifications are dependent on cell type and growing condition.
The following molecular weights have been reported in the literature: 180 kDa (CTCF-180), 130 kDa (CTCF-130), 82 kDa (CTCF-82), 70 kDa (CTCF-70). See Klenova,E.M.,et al, (1997) Nucleic Acids Res. 25, 466–473 and Torrano,V,et al, (2006) Journal of Cell Science 119, 1746-1759) for additional details.

Linkage

Replaces: MABE547

Physical form

Format: Purified

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

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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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