RNA polymerase is composed of 2α, β, β', and σ subunits; the core enzyme lacks σ, whereas the holoenzyme contains it for attachment.
RNA polymerase consists of subunits 2α, β, β', and σ. The core enzyme lacks σ, while the holoenzyme includes σ, which is necessary for attachment.
| Front | Subunits of RNA polymerase Structure The two functional components are called |
|---|---|
| Back | 2α, β, β', σ Core enzyme (without σ) Holoenzyme (with σ, required for attachment) |
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