Animals ; Base Pairing ; Binding Sites ; CCCTC-Binding Factor ; metabolism ; Consensus Sequence ; Humans ; Mutation ; Nucleotide Motifs

CTCF as a multivalent eukaryotic transcription factor plays a diverse range of roles in regulation of various genes through the binding of its 11 zinc fingers to CTCF consensus sites or various proteins. CTCF is involved in multiple aspects of epigenetic regulation including regulation of chromatin remodeling and genomic imprinting. Deregulation of these processes result in a group of diseases are characterized by growth, development, and neurological dysfunction. This paper reviews recent researches that highlight the links between CTCF, epigenetics and diseases.
CCCTC-Binding Factor ; Disease ; genetics ; Epigenomics ; methods ; Humans ; Repressor Proteins ; genetics ; Transcription Factors ; genetics ; Zinc Fingers ; genetics

To investigate the function of CTCF and understand the pathogenesis of tumors better, we produced rabbit polyclonal antibody of human transcription factor CTCF protein and detected its expression in several kinds of human cancer cells and tissues. GST fusion protein of human CTCF-N domain was purified by GSTrap-FF affinity chromatography and was successfully expressed under induction of IPTG in E. coli BL21. Western blotting analysis demonstrated that the polyclonal antibody can recognize the endogenous CTCF from HepG2, MCF-7 and HeLa cells specifically. The produced antibodies can be used for gene expression regulation and tissue distribution study at protein level.
Animals ; Antibodies ; immunology ; metabolism ; CCCTC-Binding Factor ; Escherichia coli ; genetics ; metabolism ; Genetic Vectors ; genetics ; Glutathione Transferase ; biosynthesis ; genetics ; HeLa Cells ; Hep G2 Cells ; Humans ; Rabbits ; Recombinant Fusion Proteins ; biosynthesis ; genetics ; immunology ; Repressor Proteins ; biosynthesis ; genetics ; immunology