Characterisation of a Lambda Transducing Phage Carrying the F Conjugation Gene TraG
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Molecular Biology
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A lambda transducing phage carrying the traGSTD genes of the E. coli K12 factor F was isolated by an in vivo technique, and characterized in tra complementation tests, by determining its restriction endonuclease fragment sizes, and by measuring heteroduplex molecules. The size and location on the F physical map of the tra transducing segment was thereby determined. Comparison of the proteins synthesized in UV-irradiated cells by this phage and by a derivative carrying the amber traG79 mutation, allowed the traG product to be identified as a protein of molecular weight 100,000. In the same experiments, the sizes of the traT and traD products made by the phage were also measured, being 25,000 and 85,000 daltons respectively.
traG protein of the F sex factor of Escherichia coli K-12 and its role in conjugation.
Manning P, Morelli G, Achtman M Proc Natl Acad Sci U S A. 1981; 78(12):7487-91.
PMID: 7038680 PMC: 349293. DOI: 10.1073/pnas.78.12.7487.
Promoter-distal region of the tra operon of F-like sex factor R100 in Escherichia coli K-12.
Hansen B, Manning P, Achtman M J Bacteriol. 1982; 150(1):89-99.
PMID: 6277874 PMC: 220085. DOI: 10.1128/jb.150.1.89-99.1982.
Overproduction, purification and characterization of the F traT protein.
Minkley Jr E, Willetts N Mol Gen Genet. 1984; 196(2):225-35.
PMID: 6238226 DOI: 10.1007/BF00328054.
The effect of tra mutations on the synthesis of the F-pilin membrane polypeptide.
Moore D, Sowa B Mol Gen Genet. 1981; 184(2):260-4.
PMID: 6120442 DOI: 10.1007/BF00272914.
Nucleotide sequence of the surface exclusion genes traS and traT from the IncF0 lac plasmid pED208.
Finlay B, Paranchych W J Bacteriol. 1986; 166(3):713-21.
PMID: 3011738 PMC: 215180. DOI: 10.1128/jb.166.3.713-721.1986.