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Exonuclease

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Revision as of 07:24, 1 April 2015 by Michal Harel (Talk | contribs)
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Exonucleases (ExN) cleave nucleotides at the end of a polynucleotide chain. In E. coli there are ExN I to VIII.

  • ExN-I cleaves single-stranded DNA.
  • ExN-II is associated with DNA polymerase.
  • ExN-III cleaves double-stranded DNA.
  • ExN-IV cleavage results in nucleoside monophosphate.
  • ExN-V cleaves linear double-stranded DNA.
  • ExN-VIII requires a free 5’ OH group for reacting.
  • ExN were found in human and yeast as well.

3D Structures of exonuclease

Updated on 01-April-2015

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman

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