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Antitermination is the Prokaryotic cell's aid to fix premature termination of RNA synthesis during the transcription of DNA.

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If the transcription is terminated prematurely (often after 100 - 1000 base pairs), the antiterminator binds to the transcribed RNA or upstream of the DNA terminator and "re-starts" the transcription.

Important in lambda-phage transcriptional regulation and also a form of positive regulation. In lambda-phage proteins N and Q are antiterminators. N protein prevents termination in early operons of lambda, but not in other phage or bacterial operons.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Antitermination". A list of authors is available in Wikipedia.
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