Unique error signature of the four-subunit yeast DNA polymerase epsilon.

Abstract excerpt

We have purified wild type and exonuclease-deficient four-subunit DNA polymerase epsilon (Pol epsilon) complex from Saccharomyces cerevisiae and analyzed the fidelity of DNA synthesis by the two enzymes. Wild type Pol epsilon synthesizes DNA accurately, generating single-base substitutions and deletions at average error rates of </=2 x 10-5 and </=5 x 10-7, respectively. Pol epsilon lacking 3' --> 5' exonuclease...

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