Abstract
The toxin-antitoxin system parD (kis kid) of plasmid R1 is coregulated by the coordinated action of its two gene products. Here we describe the isolation and the in vivo characterization of three single-amino-acid changes in the Kid toxin, G4E, C74Y, and E91K, that affect the coregulatory activity but preserve the toxicity of the protein.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Bacterial Proteins / chemistry
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Bacterial Proteins / genetics
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Bacterial Proteins / metabolism*
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Culture Media
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DNA-Binding Proteins / chemistry
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DNA-Binding Proteins / genetics
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DNA-Binding Proteins / metabolism*
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Escherichia coli / genetics
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Escherichia coli / growth & development
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Escherichia coli / metabolism*
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Escherichia coli Proteins / chemistry*
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Escherichia coli Proteins / genetics
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Escherichia coli Proteins / metabolism
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Gene Expression Regulation, Bacterial*
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Homeostasis*
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Mutation
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Plasmids
Substances
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Bacterial Proteins
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Culture Media
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DNA-Binding Proteins
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Escherichia coli Proteins
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ParD protein, E coli
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ParD protein, Plasmid R1
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kid toxin protein, E coli plasmid R1
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parD protein, Bacteria