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Scientific article
English

The repA2 Gene of the Plasmid R100.1 Encodes a Repressor of Plasmid Replication

Published inPlasmid, vol. 10, no. 2, p. 148-155
Publication date1983
Abstract

We have constructed two miniplasmids, derived from the resistance plasmid R100.1. In one of these plasmids 400 bp of R100.1 DNA have been replaced by DNA from the transposon Tn1000 (gamma-delta). This substitution removes the amino-terminal end of the repA2 coding sequence of R100.1 and results in an increased copy number of the plasmid carrying the substitution. The copy number of the substituted plasmid is reduced to normal levels in the presence of R100.1. The repA2 gene thus encodes a trans-acting repressor function involved in the control of plasmid replication.

Funding
  • Swiss National Science Foundation - 3.169.0.81
Citation (ISO format)
LIU, Chengpin, CHURCHWARD, Gordon, CARO, Lucien. The <i>repA2</i> Gene of the Plasmid R100.1 Encodes a Repressor of Plasmid Replication. In: Plasmid, 1983, vol. 10, n° 2, p. 148–155. doi: 10.1016/0147-619X(83)90067-7
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ISSN of the journal0147-619X
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