multiple subunits

How Many Subunit Are Present In DNA Polymerase III? The DNA polymerase III holoenzyme is composed of 10 subunits. The core of the polymerase contains the catalytic polymerase subunit, α, the proofreading 3′ → 5′ exonuclease, ε, and a subunit of unknown function, θ. How many subunits are in DNA polymerase 3? DNA polymerase III