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Deoxyribonuclease II (DNase II) is also known as acid deoxyribonuclease because it has optimal activity in the low pH environment of lysosomes where it is typically found in higher eukaryotes. Some forms of recombinant DNase II display a high level of activity in low pH in the absence of divalent metal ions, similar to eukaryotic DNase II. [7]
Type I site-specific deoxyribonuclease (EC 3.1.21.3, type I restriction enzyme, deoxyribonuclease (ATP- and S-adenosyl-L-methionine-dependent), restriction-modification system, deoxyribonuclease (adenosine triphosphate-hydrolyzing), adenosine triphosphate-dependent deoxyribonuclease, ATP-dependent DNase, type 1 site-specific deoxyribonuclease) is an enzyme. [1]
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.
In molecular biology, endonucleases are enzymes that cleave the phosphodiester bond within a polynucleotide chain (namely DNA or RNA).Some, such as deoxyribonuclease I, cut DNA relatively nonspecifically (with regard to sequence), while many, typically called restriction endonucleases or restriction enzymes, cleave only at very specific nucleotide sequences.
Type II site-specific deoxyribonuclease (EC 3.1.21.4, type II restriction enzyme) is an enzyme. [1] This enzyme catalyses the endonucleolytic cleavage of DNA to give specific double-stranded fragments with terminal 5'-phosphates.
RecBCD is a model enzyme for the use of single molecule fluorescence as an experimental technique used to better understand the function of protein-DNA interactions. [23] The enzyme is also useful in removing linear DNA, either single- or double-stranded, from preparations of circular double-stranded DNA, since it requires a DNA end for activity.
HindIII (pronounced "Hin D Three") is a type II site-specific deoxyribonuclease restriction enzyme isolated from Haemophilus influenzae that cleaves the DNA palindromic sequence AAGCTT in the presence of the cofactor Mg 2+ via hydrolysis. [1] HindIII restrictions process results in formation of overhanging palindromic sticky ends.
Type III site-specific deoxyribonuclease (EC 3.1.21.5, type III restriction enzyme, restriction-modification system) is an enzyme. [1] This enzyme catalyses the following chemical reaction Endonucleolytic cleavage of DNA to give specific double-stranded fragments with terminal 5'- phosphates