CTCF Polyclonal Antibody | anti-CTCF antibody

Anti-CTCF Antibody

Cat. Num. AAA178015

• Gene Names: CTCF; MRD21
• Reactivity: Human, Mouse, Rat
• Applications: Western Blot, Immunohistochemistry
• Purity: Immunogen Affinity Purified
• Synonyms: CTCF; Polyclonal Antibody; Anti-CTCF Antibody; Transcriptional repressor CTCF; 11 zinc finger protein; 11 zinc finger transcriptional repressor; 11-zinc finger protein; CCCTC binding factor (zinc finger protein); CCCTC binding factor; CCCTC-binding factor; Ctcf; CTCF_HUMAN; CTCFL paralog; CCCTC-binding factor (zinc finger protein); anti-CTCF antibody

• Reactivity: Human, Mouse, Rat
• Clonality: Polyclonal
• Purity/Purification: Immunogen Affinity Purified
• Form/Format: Lyophilized. Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3.
• Sequence Length: 399

• Applicable Applications for anti-CTCF antibody: Western Blot (WB), Immunohistochemistry (IHC) Paraffin
• Application Notes: Western Blot Concentration: 0.1-0.5ug/ml; Immunohistochemistry (IHC) Paraffin Concentration: 0.5-1ug/ml
• Immunogen: E Coli-derived human CTCF recombinant protein (Position: K521-R727). Human CTCF shares 94% and 93.1% amino acid (aa) sequence identity with mouse and rat CTCF, respectively.
• Ig Type: Rabbit IgG
• Reconstitution: Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
• Preparation and Storage: At -20 degree C for one year. After reconstitution, at 4 degree C for one month. It can also be aliquoted and stored frozen at -20 degree C for a longer time. Avoid repeated freezing and thawing.

Western Blot (WB)

(Anti-CTCF Picoband antibody, MBS178015, Western blottingAll lanes: Anti CTCF (MBS178015) at 0.5ug/mlLane 1: Rat Thymus Tissue Lysate at 50ugLane 2: Rat Gaster Tissue Lysate at 50ugLane 3: Human Placenta Tissue Lysate at 50ugPredicted bind size: 88KDObserved bind size: 88KD )

Immunohistochemistry (IHC)

(Anti-CTCF Picoband antibody, MBS178015, IHC(P)IHC(P): Mouse Intestine Tissue )

Immunohistochemistry (IHC)

(Anti-CTCF Picoband antibody, MBS178015, IHC(P)IHC(P): Rat Intestine Tissue )

Immunohistochemistry (IHC)

(Anti-CTCF Picoband antibody, MBS178015, IHC(P)IHC(P): Human Lung Cancer Tissue )

Related Product Information for anti-CTCF antibody

Description: Rabbit IgG polyclonal antibody for Transcriptional repressor CTCF(CTCF) detection. Tested with WB, IHC-P in Human;Mouse;Rat.

Background: Transcriptional repressor CTCF also known as 11-zinc finger protein or CCCTC-binding factor is a transcription factor that in humans is encoded by the CTCF gene. This gene is a member of the BORIS + CTCF gene family and encodes a transcriptional regulator protein with 11 highly conserved zinc finger (ZF) domains. And this nuclear protein is able to use different combinations of the ZF domains to bind different DNA target sequences and proteins. Depending upon the context of the site, the protein can bind a histone acetyltransferase (HAT)-containing complex and function as a transcriptional activator or bind a histone deacetylase (HDAC)-containing complex and function as a transcriptional repressor. If the protein is bound to a transcriptional insulator element, it can block communication between enhancers and upstream promoters, thereby regulating imprinted expression. Mutations in this gene have been associated with invasive breast cancers, prostate cancers, and Wilms' tumors. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.

References

1. Chaumeil J, Skok JA (April 2012). "The role of CTCF in regulating V(D)J recombination". Curr. Opin. Immunol. 24(2): 153-9. 2. Filippova GN, Fagerlie S, Klenova EM, Myers C, Dehner Y, Goodwin G, Neiman PE, Collins SJ, Lobanenkov VV (June 1996). "An exceptionally conserved transcriptional repressor, CTCF, employs different combinations of zinc fingers to bind diverged promoter sequences of avian and mammalian c-myc oncogenes". Mol. Cell. Biol. 16 (6): 2802-13. 3. Phillips JE, Corces VG (June 2009)."CTCF: master weaver of the genome".Cell 137 (7): 1194-211.

NCBI and Uniprot Product Information

• NCBI GI #: 300388142
• NCBI GeneID: 10664
• NCBI Accession #: NP_001177951.1
• NCBI GenBank Nucleotide #: NM_001191022.1
• UniProt Accession #: P49711; Q53XI7; Q59EL8; B5MC38
• Molecular Weight: 45,998 Da
• NCBI Official Full Name: transcriptional repressor CTCF isoform 2
• NCBI Official Synonym Full Names: CCCTC-binding factor
• NCBI Official Symbol: CTCF
• NCBI Official Synonym Symbols: MRD21
• NCBI Protein Information: transcriptional repressor CTCF
• UniProt Protein Name: Transcriptional repressor CTCF
• Protein Family: Transcriptional repressor
• UniProt Gene Name: CTCF
• UniProt Entry Name: CTCF_HUMAN

NCBI Description

This gene is a member of the BORIS + CTCF gene family and encodes a transcriptional regulator protein with 11 highly conserved zinc finger (ZF) domains. This nuclear protein is able to use different combinations of the ZF domains to bind different DNA target sequences and proteins. Depending upon the context of the site, the protein can bind a histone acetyltransferase (HAT)-containing complex and function as a transcriptional activator or bind a histone deacetylase (HDAC)-containing complex and function as a transcriptional repressor. If the protein is bound to a transcriptional insulator element, it can block communication between enhancers and upstream promoters, thereby regulating imprinted expression. Mutations in this gene have been associated with invasive breast cancers, prostate cancers, and Wilms' tumors. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010]

Uniprot Description

Chromatin 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 in 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. Plays a role in the recruitment of CENPE to the pericentromeric/centromeric regions of the chromosome during mitosis (PubMed:26321640).