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11 january 2019 15:00:21

 
Two essential replicative DNA polymerases exchange dynamically during DNA replication and after replication fork arrest (Biophysical Journal)
 




The replisome is a multiprotein machine responsible for the faithful replication of chromosomal and plasmid DNA. Using single-molecule super-resolution imaging, we characterized the dynamics of three replisomal proteins in live Bacillus subtilis cells: the two replicative DNA polymerases, PolC and DnaE, and a processivity clamp loader subunit, DnaX. We quantified the protein mobility and dwell times during normal replication and following replication fork stress using damage-independent and damage-dependent conditions.


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32 viewsCategory: Biophysics
 
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