exonuclease /exo·nu·cle·ase/ (ek″so-noo´kle-ās) any nuclease specifically catalyzing the hydrolysis of terminal bonds of deoxyribonucleotide or ribonucleotide chains, releasing mononucleotides.
exonuclease
ex·o·nu·cle·ase ( k s -n  kl - s, -z)n. Any of a group of enzymes that catalyze the hydrolysis of single nucleotides from the end of a DNA or RNA chain. |
exonuclease
[ek′sōno̅o̅′klē·ās]
Etymology: Gk, exo + L, nucleus, nut; ase, enzyme
an enzyme that digests DNA or RNA from the ends of the strands. Compare endonuclease.
exonuclease
a nuclease that cleaves single mononucleotides from the end of a polynucleotide chain.
exonuclease III
one from E. coli that removes nucleotides from the 3′ ends of double-stranded DNA.
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