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DNA pol III epsilon subunit
Organism Escherichia coli
(str. K-12 substr. MG1655)
Symbol dnaQ
Entrez 946441
RefSeq (Prot) NP_414751.1
UniProt P03007
Other data
EC number
Chromosome genome: 0.24 - 0.24 Mb

dnaQ is a protein required for DNA replication in bacteria. It is the ε (epsilon) subunit of the DNA polymerase III holoenzyme.[1]

The ε subunit's role is to remove misincorporated bases from DNA.


  1. ^ Huang Y, Braithwaite DK, Ito J (January 1997). "Evolution of dnaQ, the gene encoding the editing 3' to 5' exonuclease subunit of DNA polymerase III holoenzyme in Gram-negative bacteria". FEBS Lett. 400 (1): 94–8. doi:10.1016/S0014-5793(96)01361-0. PMID 9000520. 

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