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A restriction enzyme, restriction endonuclease, REase, ENase or restrictase is an enzyme that cleaves DNA into fragments at or near specific recognition sites within molecules known as restriction sites. Restriction enzymes are one class of the broader endonuclease group of enzymes.
- Restriction modification system
The restriction modification system ( RM system) is found in...
- Endonuclease
Restriction enzymes are endonucleases from eubacteria and...
- Restriction modification system
Restriktionsenzyme, genauer auch Restriktionsendonukleasen (REN), sind Enzyme, die DNA an bestimmten Positionen erkennen und schneiden können. Restriktionsendonukleasen treten unter anderem in Bakterien und Archaeen auf [1] und dienen dort der Abwehr von Bakteriophagen.
Restriction endonucleases are enzymes that recognize a specific DNA sequence, called a restriction site, and cleave the DNA within or adjacent to that site. For example, the restriction endonuclease EcoR I, isolated from the bacterium Escherichia coli, recognizes the following sequence:
A deeper look into the apparent self-defense mechanisms of these bacteriophage-resistant bacteria revealed their secret weapon: a group of enzymes called restriction endonucleases, or...
Bacterial restriction/modification systems protect against invaders. The discovery of restriction enzymes, or restriction endonucleases (REs), was pivotal to the development of molecular cloning. REs occur naturally in bacteria, where they specifically recognize short stretches of nucleotides in DNA and catalyze double-strand breaks at or near
