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. 1977 May;130(2):877–887. doi: 10.1128/jb.130.2.877-887.1977

Characterization of lambda Escherichia coli hybrids carrying chemotaxis genes.

M Silverman, P Matsumura, M Hilmen, M Simon
PMCID: PMC235294  PMID: 233725

Abstract

Molecular cloning techniques were used to construct hybrid Escherichia coli lambda phage and isolate Col E1 factors that carried the cheB region of the E. coli genome. The products of these genes were examined by using a series of deletions in the phage to stimulate specific polypeptide synthesis in ultraviolet-irradiated cells and by using Col factor to program protein synthesis in minicells. Seven flagellar related polypeptides were synthesized. Three of these with apparent molecular weights of 38,000, 28,000, and 8,000 were associated with the cheB region; three polypeptides 63,000, 61,000, and 60,000 were associated with the region that maps between cheB and cheA. These bands were referred to as the triplet group. We suggest that these polypeptides are the same as the methyl-accepting chemotaxis protein described by Kort et al. (Proc. Natl. Acad. Sci. U.S.A. 72:3939-3943, 1975). Another polypeptide with a molecular weight of 12,000 is associated with the cheA region which also produces at least three gene products. We conclude that the cheA-cheB region in E. coli is complex. Further genetic and biochemical analyses are required to describe all of these products.

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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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