Reference: Struhl K and Davis RW (1977) Production of a functional eukaryotic enzyme in Escherichia coli: cloning and expression of the yeast structural gene for imidazole-glycerolphosphate dehydratase (his3). Proc Natl Acad Sci U S A 74(12):5255-9

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Abstract


A cloned segment of yeast DNA containing the structural gene for imidazoleglycerolphosphate dehydratase (D-erythro-imidazoleglycerolphosphate hydro-lase, EC 4.2.1.19) is transcribed and translated in Escherichia coli with sufficient fidelity to produce functional enzyme. This segment of yeast DNA was isolated as a viable molecular hybrid of bacteriophage lambda (lambdagt-Sc2601) which complements a nonrevertible hisB auxotroph of E. coli lacking dehydratase activity. The equivalent segments of DNA cloned from two independent his3 mutants of yeast lacking IGP dehydratase activity do not complement the hisB auxotroph. The two nonfunctional his3 alleles cloned in bacteriophage lambda can be recombined in E. coli to generate a hybrid phage which complements the hisB auxotroph. The dehydratase activity produced in E. coli by the cloned segment of yeast DNA strongly resembles the activity found in yeast.

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Journal Article | Research Support, U.S. Gov't, P.H.S.
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Struhl K, Davis RW
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