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. 1985 Dec;164(3):1386–1389. doi: 10.1128/jb.164.3.1386-1389.1985

Cloning and expression of the Thiobacillus ferrooxidans glutamine synthetase gene in Escherichia coli.

M E Barros, D E Rawlings, D R Woods
PMCID: PMC219347  PMID: 2866177

Abstract

The glutamine synthetase (GS) gene glnA of Thiobacillus ferrooxidans was cloned on recombinant plasmid pMEB100 which enabled Escherichia coli glnA deletion mutants to utilize (NH4)2SO4 as the sole source of nitrogen. High levels of GS-specific activity were obtained in the E. coli glnA deletion mutants containing the T. ferrooxidans GS gene. The cloned T. ferrooxidans DNA fragment containing the glnA gene activated histidase activity in an E. coli glnA glnL glnG deletion mutant containing the Klebsiella aerogenes hut operon. Plasmid pMEB100 also enabled the E. coli glnA glnL glnG deletion mutant to utilize arginine or low levels of glutamine as the sole source of nitrogen. There was no detectable DNA homology between the T. ferrooxidans glnA gene and the E. coli glnA gene.

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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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