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exonuclease Line breaks: exo|nucle¦ase
Pronunciation: /ˌɛksəʊˈnjuːklɪeɪz/

Definition of exonuclease in English:


An enzyme which removes successive nucleotides from the end of a polynucleotide molecule.
Example sentences
  • Orn was shown by in vitro analysis to be an exonuclease specific for RNA molecules shorter than five nucleotides in length.
  • A given exonuclease hydrolyzes DNA at a fixed rate, but there exist a distribution of conformations and a distribution of hydrolysis rates.
  • The rapid rise of the first fluorescence maximum puts a strict upper bound on the timescale of magnesium binding to the exonuclease.
Definition of exonuclease in:
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