: an enzyme that breaks down a nucleotide chain into two or more shorter chains by cleaving the internal covalent bonds linking nucleotides — compare exonuclease
Examples of endonuclease in a Sentence
Recent Examples on the WebBoth circular strands of DNA are protected from endonucleases.
Robert F. Service, Science | AAAS, 29 Aug. 2019 Xofluza interferes with a protein inside the flu virus called polymerase acidic endonuclease, which helps stop the virus from replicating, Dr. Adalja explains.
Korin Miller, SELF, 26 Oct. 2018 Humans don’t make UV endonuclease, either; researchers found it in a bacterium called Micrococcus luteus.
Robbie Gonzalez, WIRED, 2 July 2018 Oftentimes those sequences were flanked by a set of genes coding for a class of strand-cutting enzymes called endonucleases.
Megan Molteni, WIRED, 27 Apr. 2018
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'endonuclease.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.