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Merck

07-729

Anti-CTCF Antibody

serum, Upstate®

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

rabbit

Quality Level

conjugate

unconjugated

antibody form

serum

antibody product type

primary antibodies

clone

polyclonal

species reactivity

mouse, human, canine, rat, primate

packaging

antibody small pack of 25 μL

manufacturer/tradename

Upstate®

technique(s)

ChIP: suitable (ChIP-seq)
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

ambient

target post-translational modification

unmodified

Gene Information

human ... CTCF(10664)

Related Categories

General description

Approx. 120 kDa
CTCF is a ubiquitous 11 zinc finger (ZF) protein with highly versatile functions. 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. CTCF may also act as tumor suppressor. CTCF organizes epigenetically controlled chromatin insulators that regulate imprinted genes in soma.

Immunogen

KLH-conjugated, synthetic peptide corresponding to amino acids 659-675 (C-TNQPKQNQPTAIIQVED) of human CCCTC-binding factor (CTCF) with a N-terminal cysteine added for conjugation purposes.

Application

Chromatin Immunoprecipitation:
An independent laboratory has confirmed that this antibody immunoprecipitates CTCF-bound chromatin from WEHI B-cells.
Use Anti-CTCF Antibody (Rabbit Polyclonal Antibody) validated in ChIP, WB, ChIP-seq to detect CTCF also known as 11-zinc finger protein, CCCTC-binding factor.

Biochem/physiol Actions

Predicted to cross-react with mouse, rat, dog and primates based on sequence homology.
Recognizes CTCF at a.a. 659-675.

Physical form

Rabbit polyclonal antiserum containing 0.05% sodium azide and 30% glycerol.

Preparation Note

Stable for 1 year at -20°C from date of receipt.
Handling Recommendations: Upon first thaw, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C.
Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variability in freezer temperatures below -20°C may cause glycerol containing solutions to become frozen during storage.

Analysis Note

Control
Positive Antigen Control: Catalog #12-309, Hela cell nuclear extract. Add an equal volume of Laemmli reducing sample buffer to 10 µL of extract and boil for 5 minutes to reduce the preparation. Load 20 µg of reduced extract per lane for minigels.
Routinely evaluated by Western Blot.

Western Blot Analysis:
A 1:1000–1:5000 dilution of this lot detected CTCF in HeLa nuclear extract. A previous lot detected CTCF in K562 nuclear extract (data not shown).

Other Notes

Concentration: The concentration of this serum antibody has not been determined.
Replaces: MABE547

Legal Information

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class Code

10 - 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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Role of CCCTC binding factor (CTCF) and cohesin in the generation of single-cell diversity of protocadherin-? gene expression.
Monahan, K; Rudnick, ND; Kehayova, PD; Pauli, F; Newberry, KM; Myers, RM; Maniatis, T
Proceedings of the National Academy of Sciences of the USA null
Dysregulated human renin expression in transgenic mice carrying truncated genomic constructs: evidence supporting the presence of insulators at the renin locus.
Zhou, X; Weatherford, ET; Liu, X; Born, E; Keen, HL; Sigmund, CD
American Journal of Physiology: Renal Physiology null
A co-ordinated interaction between CTCF and ER in breast cancer cells.
Ross-Innes, CS; Brown, GD; Carroll, JS
BMC Genomics null
CTCF mediates the cell-type specific spatial organization of the Kcnq5 locus and the local gene regulation.
Ren, L; Wang, Y; Shi, M; Wang, X; Yang, Z; Zhao, Z
Testing null
Friedreich ataxia patient tissues exhibit increased 5-hydroxymethylcytosine modification and decreased CTCF binding at the FXN locus.
Al-Mahdawi, S; Sandi, C; Mouro Pinto, R; Pook, MA
Testing null

Related Content

Cancer is a complex disease manifestation. At its core, it remains a disease of abnormal cellular proliferation and inappropriate gene expression. In the early days, carcinogenesis was viewed simply as resulting from a collection of genetic mutations that altered the gene expression of key oncogenic genes or tumor suppressor genes leading to uncontrolled growth and disease (Virani, S et al 2012). Today, however, research is showing that carcinogenesis results from the successive accumulation of heritable genetic and epigenetic changes. Moreover, the success in how we predict, treat and overcome cancer will likely involve not only understanding the consequences of direct genetic changes that can cause cancer, but also how the epigenetic and environmental changes cause cancer (Johnson C et al 2015; Waldmann T et al 2013). Epigenetics is the study of heritable gene expression as it relates to changes in DNA structure that are not tied to changes in DNA sequence but, instead, are tied to how the nucleic acid material is read or processed via the myriad of protein-protein, protein-nucleic acid, and nucleic acid-nucleic acid interactions that ultimately manifest themselves into a specific expression phenotype (Ngai SC et al 2012, Johnson C et al 2015). This review will discuss some of the principal aspects of epigenetic research and how they relate to our current understanding of carcinogenesis. Because epigenetics affects phenotype and changes in epigenetics are thought to be key to environmental adaptability and thus may in fact be reversed or manipulated, understanding the integration of experimental and epidemiologic science surrounding cancer and its many manifestations should lead to more effective cancer prognostics as well as treatments (Virani S et al 2012).

Global Trade Item Number

SKUGTIN
07-72904053252277269
07-729-25UL04054839337413

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