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J Bacteriol. Mar 1994; 176(6): 1793–1795.
PMCID: PMC205273

"Protease I" of Escherichia coli functions as a thioesterase in vivo.

Abstract

Escherichia coli protease I is assayed as an esterase active with certain synthetic model chymotrypsin substrates. However, the gene encoding protease I has the same DNA sequence and genomic location as tesA, a gene that encodes E. coli thioesterase I. We report that both hydrolase activities utilize the same active site and demonstrate that the protein functions as a thioesterase in vivo.

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Selected References

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