Types
In bacteria, transcription initiation requires an RNA polymerase and a single GTF: sigma factor.
In archaea and eukaryotes, transcription initiation requires an RNA polymerase and a set of multiple GTFs. The Transcription initiation by eukaryotic RNA polymerase II involves the following GTFs:
- TFIIA
- TFIIB
- TFIID
- TFIIE
- TFIIF
- TFIIH
Read more about this topic: General Transcription Factor
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