Definition of DNase in English:



mass nounBiochemistry
  • An enzyme which catalyses the hydrolysis of DNA into oligonucleotides and smaller molecules.

    • ‘We believe that it is because of specific digestion of the NA molecules by DNase and RNase.’
    • ‘The combination of streptokinase and streptococcal DNase produces marked reductions in viscosity, and these can only be attributed to the presence of the streptodornase.’
    • ‘Both unswollen and swollen nuclei could be further enlarged with the addition of DNase and RNase.’
    • ‘The RNA was treated with DNase to remove residual DNA and then it was reverse transcribed also as previously described.’
    • ‘Cells were broken either by a French cell press or lysozyme with a small amount of DNase 1.’


1940s from DNA+ -ase.