WebJan 30, 2024 · The ability to bypass CTCF boundaries varies with their insulation strength and the tissue-specific enhancers responsible for activation. SCR is required for Sox2 expression in epiblast cells a ... CTCF binds to the consensus sequence CCGCGNGGNGGCAG (in IUPAC notation). This sequence is defined by 11 zinc finger motifs in its structure. CTCF's binding is disrupted by CpG methylation of the DNA it binds to. On the other hand, CTCF binding may set boundaries for the spreading of DNA … See more 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. CTCF is involved in many cellular processes, … See more CCCTC-Binding factor or CTCF was initially discovered as a negative regulator of the chicken c-myc gene. This protein was found to be binding to three regularly spaced repeats of the core sequence CCCTC and thus was named CCCTC binding factor. See more CTCF binds to itself to form homodimers. CTCF has also been shown to interact with Y box binding protein 1. CTCF also co-localizes with See more • CCCTC-binding+factor at the U.S. National Library of Medicine Medical Subject Headings (MeSH) • FactorBook CTCF See more The primary role of CTCF is thought to be in regulating the 3D structure of chromatin. CTCF binds together strands of DNA, thus forming chromatin loops, and anchors DNA to cellular … See more The binding of CTCF has been shown to have many effects, which are enumerated below. In each case, it is unknown if CTCF directly evokes the … See more • Ohlsson R, Renkawitz R, Lobanenkov V (2001). "CTCF is a uniquely versatile transcription regulator linked to epigenetics and … See more
MCM complexes are barriers that restrict cohesin-mediated loop …
WebInterestingly, CTCF is found to be enriched in the domain boundaries. However, CTCF binding alone is not sufficient to demarcate the domain boundaries, as only 15% of CTCF binding sites are located in the domain boundaries [161]. Additional factors such as cohesin might be also required at the topological domain boundaries [162,163]. WebHowever, how boundary function is established is not well understood. Here, we combine genome-wide analyses and transgenic mouse assays to dissect the regulatory logic of clustered-CCCTC-binding factor (CTCF) boundaries in vivo, interrogating their function at multiple levels: chromatin interactions, transcription and phenotypes. tshirt tuck hack
CTCF - Wikipedia
WebFeb 17, 2024 · HOTTIP facilitates the posterior HOXA TAD to drive a homeotic transcription program partly by binding to annotated CBSs (Luo et al., 2024), suggesting that HOTTIP … WebFeb 27, 2015 · CTCF functions as an insulator by organizing Hox clusters into spatially disjoint domains. Ablation of CTCF binding disrupts topological boundaries such that caudal Hox genes leave the repressed domain and become subject to transcriptional activation. Hence, CTCF is required to insulate facultative heterochromatin from impinging … WebMay 6, 2013 · CTCF has it all. The transcription factor binds to tens of thousands of genomic sites, some tissue-specific, others ultra-conserved. It can act as a transcriptional activator, repressor and insulator, and it can pause transcription. CTCF binds at chromatin domain boundaries, at enhancers and gene promoters, and inside gene bodies. t shirt tuck in rule