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Group of Enzymes Involved in Different Repair Mechanisms

Repair system

Enzymes/Proteins

Base excision

DNA glycosylase
AP endonuclease
DNA polymerase
DNA ligase.

Nucleotide Excision

UvrA, UvrB, UvrC
DNA polymerase I
 DNA ligase.

Mismatch

Dam methylase
MutS, MutL, MutH
Exonuclease
DNA helicase
SSB proteins
DNA polymerase II
DNA ligase.