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07-729

Sigma-Aldrich

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

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)

General description

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.

Specificity

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

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.

Quality

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).

Target description

Approx. 120 kDa

Linkage

Replaces: MABE547

Physical form

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

Storage and Stability

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.

Other Notes

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

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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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
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
Chromatin structure of the LCR in the human I?-globin locus transcribing the adult I'- and I?-globin genes.
Seoyeon Kim,Yea Woon Kim,Sung Han Shim,Chul Geun Kim,Aeri Kim
The International Journal of Biochemistry & Cell Biology null
A co-ordinated interaction between CTCF and ER in breast cancer cells.
Ross-Innes, CS; Brown, GD; Carroll, JS
BMC Genomics null
An elaborate pathway required for Ras-mediated epigenetic silencing.
Gazin, C; Wajapeyee, N; Gobeil, S; Virbasius, CM; Green, MR
Nature null

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