Weakening of the T7 promoter-polymerase interaction facilitates promoter release.

Abstract excerpt

During transcription initiation, RNA polymerases retain interactions with their promoters until the RNA is extended to 8-13 nucleotides, at which point the polymerase releases the promoter and moves downstream. It has been shown that release of the T7 promoter is inhibited when the T7 RNA polymerase-promoter interaction is strengthened. Here we asked whether release would be facilitated when the T7...

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