doi: 10.1006/jmbi.1997.1607.
Co-localization of polar replication fork barriers and rRNA transcription terminators in mouse rDNA
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- PMID: 9514756
- DOI: 10.1006/jmbi.1997.1607
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Co-localization of polar replication fork barriers and rRNA transcription terminators in mouse rDNA
J Mol Biol.
.
Abstract
We investigated the replication of the region where transcription terminates in mouse rDNA. It contains a replication fork barrier (RFB) that behaves in a polar manner, arresting only replication forks moving in the direction opposite to transcription. This RFB consists of several closely spaced fork arrest sites that co-localize with the transcription terminator elements, known as Sal boxes. Sal boxes are the target for mTTF-I (murine transcription termination factor I). These results suggest that both termination of rRNA transcription and replication fork arrest may share cis-acting as well as trans-acting factors.
Copyright 1998 Academic Press Limited.
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