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. 1987 Dec;169(12):5648–5652. doi: 10.1128/jb.169.12.5648-5652.1987

The blue copper protein gene of Alcaligenes faecalis S-6 directs secretion of blue copper protein from Escherichia coli cells.

K Yamamoto 1, T Uozumi 1, T Beppu 1
PMCID: PMC214024  PMID: 2824441

Abstract

The gene encoding a blue copper protein (a member of the pseudoazurins) of 123 amino acid residues, containing a single type I Cu2+ ion, was cloned from Alcaligenes faecalis S-6. The nucleotide sequence of the coding region, as well as the 5'- and 3'-flanking regions, was determined. The deduced amino acid sequence after Glu-24 coincided with the reported sequence of the blue protein, and its NH2-terminal sequence of 23 residues resembled a typical signal peptide. The cloned gene was expressed under the control of the tac promoter in Escherichia coli, and the correctly processed blue protein was secreted into the periplasm. The blue protein produced in E. coli possessed the activity to transfer electrons to the copper-containing nitrite reductase of A. faecalis S-6 in vitro.

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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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