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Deoxyribonuclease I (usually called DNase I), is an endonuclease of the DNase family coded by the human gene DNASE1. [5] DNase I is a nuclease that cleaves DNA preferentially at phosphodiester linkages adjacent to a pyrimidine nucleotide, yielding 5'-phosphate-terminated polynucleotides with a free hydroxyl group on position 3', on average producing tetranucleotides.
DNase I hypersensitive sites within chromatin [1] In genetics , DNase I hypersensitive sites ( DHSs ) are regions of chromatin that are sensitive to cleavage by the DNase I enzyme. In these specific regions of the genome, chromatin has lost its condensed structure, exposing the DNA and making it accessible.
DNase I Structure: DNase I is a glycoprotein with a molecular weight of 30,000 Da and a carbohydrate chain of 8-10 residues attached to Asn18 (orange). [3] It is an 𝛼,𝛽-protein with two 6-stranded 𝛽-pleated sheets which form the core of the structure. [ 4 ]
A DNase footprinting assay [1] is a DNA footprinting technique from molecular biology/biochemistry that detects DNA-protein interaction using the fact that a protein bound to DNA will often protect that DNA from enzymatic cleavage. This makes it possible to locate a protein binding site on a particular DNA molecule.
DNase I hypersensitive sites within chromatin [1]. In genetics a hypersensitive site is a short region of chromatin and is detected by its super sensitivity to cleavage by DNase I and other various nucleases (DNase II and micrococcal nucleases).
DNase-seq (DNase I hypersensitive sites sequencing) is a method in molecular biology used to identify the location of regulatory regions, based on the genome-wide sequencing of regions sensitive to cleavage by DNase I. [1] [2] [3] FAIRE-Seq is a successor of DNase-seq for the genome-wide identification of accessible DNA regions in the genome ...
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Deoxyribonuclease-1-like 1 is an enzyme that in humans is encoded by the DNASE1L1 gene. [ 5 ] [ 6 ] [ 7 ] It is also known as DNaseX due to its localisation on the X chromosome . [ 8 ]