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A vial of RNAse A for use in molecular biology. Bovine pancreatic ribonuclease, also often referred to as bovine pancreatic ribonuclease A or simply RNase A, is a pancreatic ribonuclease enzyme that cleaves single-stranded RNA. Bovine pancreatic ribonuclease is one of the classic model systems of protein science. [1]
Ribonuclease (commonly abbreviated RNase) is a type of nuclease that catalyzes the degradation of RNA into smaller components. Ribonucleases can be divided into endoribonucleases and exoribonucleases , and comprise several sub-classes within the EC 2.7 (for the phosphorolytic enzymes) and 3.1 (for the hydrolytic enzymes) classes of enzymes.
RNase A contains histidine in its active site, and uses it to accomplish acid-base catalysis and cleavage of RNA. [2] Certain histidine residues in the active site act as bases to remove protons from 2’ hydroxyls of ribose sugars, while others act as acids to donate protons to the 5’ oxygen of adjacent riboses to make them better leaving ...
[5] [6] [7] For example, RNase 7, a member of the RNase A superfamily, is secreted by human skin and serves as a potent antipathogen defence. [8] [9] For these secreted RNases, enzymatic activity may not even be necessary for the RNase's exapted function. For example, immune RNases act by destabilizing the cell membranes of bacteria. [10] [11]
Pancreatic ribonuclease family (EC 4.6.1.18, RNase, RNase I, RNase A, pancreatic RNase, ribonuclease I, endoribonuclease I, ribonucleic phosphatase, alkaline ribonuclease, ribonuclease, gene S glycoproteins, Ceratitis capitata alkaline ribonuclease, SLSG glycoproteins, gene S locus-specific glycoproteins, S-genotype-assocd. glycoproteins, ribonucleate 3'-pyrimidino-oligonucleotidohydrolase) is ...
RNase H is an enzyme that hydrolyzes RNA, and when used in an antisense oligonucleotide application results in 80-95% down-regulation of mRNA expression. [ 6 ] The use of Morpholino antisense oligonucleotides for gene knockdowns in vertebrates , which is now a standard technique in developmental biology and is used to study altered gene ...
Ribonuclease T 1 (EC 4.6.1.24, guanyloribonuclease, Aspergillus oryzae ribonuclease, RNase N1, RNase N2, ribonuclease N3, ribonuclease U1, ribonuclease F1, ribonuclease Ch, ribonuclease PP1, ribonuclease SA, RNase F1, ribonuclease C2, binase, RNase Sa, guanyl-specific RNase, RNase G, RNase T 1, ribonuclease guaninenucleotido-2'-transferase (cyclizing), ribonuclease N3, ribonuclease N1) is a ...
It cleaves either single-stranded or double-stranded RNA, depending on the enzyme. Example includes both single proteins such as RNase III, RNase A, RNase T1, RNase T2 and RNase H and also complexes of proteins with RNA such as RNase P and the RNA-induced silencing complex. Further examples include endoribonuclease XendoU found in frogs .