Key features and details
- Rabbit polyclonal to CTCF
- Suitable for: IHC-P
- Reacts with: Mouse, Rat, Human
- Isotype: IgG
Product nameAnti-CTCF antibody
See all CTCF primary antibodies
DescriptionRabbit polyclonal to CTCF
Tested applicationsSuitable for: IHC-Pmore details
Species reactivityReacts with: Mouse, Rat, Human
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We are also updating the applications & species that this product has been “predicted to work with,” however this information is not covered by our Abpromise guarantee.
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Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
Storage bufferPreservative: 0.09% Sodium azide
Constituents: 0.01% BSA, 50% Glycerol
Aqueous buffered solution
Concentration information loading...
PurityProtein A purified
Our Abpromise guarantee covers the use of ab203312 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC-P||1/100 - 1/500.
When using a fluorescent probe the recommended dilution is 1/50 – 1/200.
FunctionChromatin binding factor that binds to DNA sequence specific sites. Involved in transcriptional regulation by binding to chromatin insulators and preventing interaction between promoter and nearby enhancers and silencers. Acts as transcriptional repressor binding to promoters of vertebrate MYC gene and BAG1 gene. Also binds to the PLK and PIM1 promoters. Acts as a transcriptional activator of APP. Regulates APOA1/C3/A4/A5 gene cluster and controls MHC class II gene expression. Plays an essential role in oocyte and preimplantation embryo development by activating or repressing transcription. Seems to act as tumor suppressor. Plays a critical role in the epigenetic regulation. Participates to the allele-specific gene expression at the imprinted IGF2/H19 gene locus. On the maternal allele, binding within the H19 imprinting control region (ICR) mediates maternally inherited higher-order chromatin conformation to restrict enhancer access to IGF2. Plays a critical role in gene silencing over considerable distances in the genome. Preferentially interacts with unmethylated DNA, preventing spreading of CpG methylation and maintaining methylation-free zones. Inversely, binding to target sites is prevented by CpG methylation. Plays a important role in chromatin remodeling. Can dimerize when it is bound to different DNA sequences, mediating long-range chromatin looping. Mediates interchromosomal association between IGF2/H19 and WSB1/NF1 and may direct distant DNA segments to a common transcription factory. Causes local loss of histone acetylation and gain of histone methylation in the beta-globin locus, without affecting transcription. When bound to chromatin, it provides an anchor point for nucleosomes positioning. Seems to be essential for homologous X-chromosome pairing. May participate with Tsix in establishing a regulatable epigenetic switch for X chromosome inactivation. May play a role in preventing the propagation of stable methylation at the escape genes from X- inactivation. Involved in sister chromatid cohesion. Associates with both centromeres and chromosomal arms during metaphase and required for cohesin localization to CTCF sites. Regulates asynchronous replication of IGF2/H19.
Tissue specificityUbiquitous. Absent in primary spermatocytes.
Sequence similaritiesBelongs to the CTCF zinc-finger protein family.
Contains 11 C2H2-type zinc fingers.
DomainThe 11 zinc fingers are highly conserved among vertebrates, exhibiting almost identical amino acid sequences. Different subsets or combination of individual zinc fingers gives the ability to CTCF to recognize multiple DNA target sites.
modificationsSumoylated on Lys-74 and Lys-689; sumoylation of CTCF contributes to the repressive function of CTCF on the MYC P2 promoter.
Cellular localizationNucleus > nucleoplasm. Chromosome. Chromosome > centromere. May translocate to the nucleolus upon cell differentiation. Associates with both centromeres and chromosomal arms during metaphase. Associates with the H19 ICR in mitotic chromosomes. May be preferentially excluded from heterochromatin during interphase.
- Information by UniProt
- 11 zinc finger protein antibody
- 11 zinc finger transcriptional repressor antibody
- 11-zinc finger protein antibody
Immunohistochemical analysis of formalin-fixed, paraffin-embedded Human rectal carcinoma tissue labeling CTCF with ab203312 at 1/200 dilution followed by conjugation to the secondary antibody and DAB staining.
Immunohistochemical analysis of formalin-fixed, paraffin-embedded Human lung carcinoma tissue labeling CTCF with ab203312 at 1/200 dilution followed by conjugation to the secondary antibody and DAB staining.
ab203312 has been referenced in 1 publication.
- Shan Z et al. CTCF regulates the FoxO signaling pathway to affect the progression of prostate cancer. J Cell Mol Med 23:3130-3139 (2019). PubMed: 30873749