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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. [ 5 ] [ 6 ] CTCF is involved in many cellular processes, including transcriptional regulation , insulator activity, V(D)J recombination [ 7 ] and regulation of chromatin architecture.
CTCF forms methylation-sensitive insulators that regulate X-chromosome inactivation. Transcriptional repressor CTCFL (this protein) is a paralog of CTCF and appears to be expressed primarily in the cytoplasm of spermatocytes, unlike CTCF which is expressed primarily in the nucleus of somatic cells. CTCF and CTCFL are normally expressed in a ...
At this locus, CTCF functions as an insulator-binding protein forming a chromosomal boundary. [13] CTCF is present in both the chicken β-globin locus and human β-globin locus. Within cHS4 of the chicken β-globin locus, CTCF binds to a region (FII) that is responsible for enhancer blocking activity. [5]
The gene therapy will compete with Australia-based CSL Behring’s Hemgenix, a similar treatment that won FDA approval for hemophilia B in 2022. That drug has a similar list price of $3.5 million ...
Topologically associating domains within chromosome territories, their borders and interactions. A topologically associating domain (TAD) is a self-interacting genomic region, meaning that DNA sequences within a TAD physically interact with each other more frequently than with sequences outside the TAD. [1]
In the developing B cell, the first recombination event to occur is between one D and one J gene segment of the heavy chain locus. Any DNA between these two gene segments is deleted. This D-J recombination is followed by the joining of one V gene segment, from a region upstream of the newly formed DJ complex, forming a rearranged VDJ gene segment.
Composite gene models of TCF/LEF genes. Extracted from Torres-Aguila et. al. (2022). [1]The TCF/LEF family (T cell factor/lymphoid enhancer factor family) is a group of genes that encode transcription factors which bind to DNA through a SOX-like high mobility group domain.
TDP-43 (Transactive response DNA-binding protein) is a nuclear protein involved in regulating gene expression by binding to and modifying nucleic acids. [45] More specifically, TDP-43 plays critical roles in RNA processing, including splicing, stability, and transport. [46] In healthy cells, TDP-43 is predominantly found in the nucleus.