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A distinct group of DNA-binding proteins are the DNA-binding proteins that specifically bind single-stranded DNA. In humans, replication protein A is the best-understood member of this family and is used in processes where the double helix is separated, including DNA replication, recombination and DNA repair. [18]
TRANSFAC: a database about eukaryotic transcription factors, their genomic binding sites and DNA-binding profiles; JASPAR: a database of manually curated, non-redundant transcription factor binding profiles. MetOSite: a database about methionine sulfoxidation sites and its functional roles in proteins [35]
A DNA-binding domain (DBD) is an independently folded protein domain that contains at least one structural motif that recognizes double- or single-stranded DNA. A DBD can recognize a specific DNA sequence (a recognition sequence ) or have a general affinity to DNA. [ 1 ]
ChIP-seq combines chromatin immunoprecipitation (ChIP) with massively parallel DNA sequencing to identify the binding sites of DNA-associated proteins. It can be used to map global binding sites precisely for any protein of interest. Previously, ChIP-on-chip was the most common technique utilized to study these protein–DNA relations.
In ICP8, the herpes simplex virus (HSV-1) single-strand DNA-binding protein (ssDNA-binding protein (SSB)), the head consists of the eight alpha helices.The front side of the neck region consists of a five-stranded beta-sheet and two alpha helices, whereas the back side is a three-stranded beta-sheet The shoulder part of the N-terminal domain contains an alpha-helical and beta-sheet region. [1]
TDP-43 is 414 amino acid residues long. It consists of four domains: an N-terminal domain spanning residues 1–76 (NTD) with a well-defined fold that has been shown to form a dimer or oligomer; [6] [7] two highly conserved folded RNA recognition motifs spanning residues 106–176 (RRM1) and 191–259 (RRM2), respectively, required to bind target RNA and DNA; [8] an unstructured C-terminal ...
The Protein Data Bank (PDB) [1] is a database for the three-dimensional structural data of large biological molecules such as proteins and nucleic acids, ...
DNA binding sites are distinct from other binding sites in that (1) they are part of a DNA sequence (e.g. a genome) and (2) they are bound by DNA-binding proteins. DNA binding sites are often associated with specialized proteins known as transcription factors, and are thus linked to transcriptional regulation. The sum of DNA binding sites of a ...