The eukaryotic processivity factor PCNA serves the same function as the prokaryotic DNA polymerase III $\beta$-subunit.

Question

Quizplus · Accepted Answer

PCNA (proliferating cell nuclear antigen) is a processivity factor for DNA polymerase δ in eukaryotes, ensuring efficient and accurate synthesis of DNA during replication. The prokaryotic equivalent is the DNA polymerase III holoenzyme, which includes the F1F1S1βF1F1F10-subunit that also serves as a processivity factor. Therefore, the statement is true.

The Eukaryotic Processivity Factor PCNA Serves the Same Function as the Prokaryotic