| Literature DB >> 384367 |
Abstract
A modified in vitro replication system has been characterized and used to catalogue the host proteins required for the replication of plasmid RSF1030. These extracts differ from systems described previously in that endogenous DNA is removed. Replication in vitro therefore requires an exogenouos RSF1030. Synthesis in the in vitro system faithfully mimics in vivo replication with respect to the products synthesized, effects of specific inhibitors, and requirements for RNA polymerase and DNA polymerase I. In addition, we find that proteins encoded by dnaB, dnaC, dnaG, dnaI, dnaP and polC (DNA polymerase III), are required for in vitro plasmid synthesis. The product of dnaA is not required. Extracts prepared from E. coli mutants deficient in in vitro replication can be complemented by addition of purified proteins or of extracts carrying the wild type protein.Entities:
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Year: 1979 PMID: 384367 PMCID: PMC327934 DOI: 10.1093/nar/6.10.3289
Source DB: PubMed Journal: Nucleic Acids Res ISSN: 0305-1048 Impact factor: 16.971