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. 1992 Apr;174(7):2361–2366. doi: 10.1128/jb.174.7.2361-2366.1992

Production of active Serratia marcescens metalloprotease from Escherichia coli by alpha-hemolysin HlyB and HlyD.

Y Suh 1, M J Benedik 1
PMCID: PMC205859  PMID: 1551853

Abstract

Serratia marcescens produces an abundant extracellular metalloprotease. The gene for this protease had previously been cloned and expressed in Escherichia coli, in which no functional protease could be found. However, the protease gene carries the LXGGXGND repeat motif found in alpha-hemolysin and other proteins secreted by homologous systems. Using a dual-plasmid complementation system, we show that the alpha-hemolysin hlyB and hlyD transport determinants are sufficient to allow secretion and activation of a functional metalloprotease species from E. coli, as are the comparable protease secretion functions of Erwinia chrysanthemi. However, strains expressing protease with the hlyBD transport system are unstable and rapidly lose the ability to produce functional protease.

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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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