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. 1978 Jan;133(1):81–84. doi: 10.1128/jb.133.1.81-84.1978

Gene dosage effects of the structural gene for a lipoprotein of the Escherichia coli outer membrane.

N R Movva, E Katz, P L Asdourian, Y Hirota, M Inouye
PMCID: PMC221979  PMID: 338599

Abstract

The gene dosage effects of the structural gene (lpp) for the lipoprotein of the Escherichia coli outer membrane were examined. A novel F-prime factor containing the lpp gene was constructed. The amount of the free-form lipoprotein in the merodiploid strain carrying the F-prime factor was found to be about two times as great as that in the corresponding haploid strain. On the other hand, the amount of the bound-form lipoprotein, which is vovalently linked to the peptidoglycan, was not significantly different in the merodiploid strain as compared with the corresponding haploid strain. The present results suggest that the lpp gene is expressed constitutively in contrast to another major protein of the E. coli outer membrane, tolG protein (protein II, D. B. Datta et al., J. Bacteriol. 128:834-841, 1976). The F-prime factor isolated may include a portion of the E. coli chromosome (located between 33 and 36 min on the genetic map) that is not covered by any other F-prime factor.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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