Open AccessA possible osmodependent protease in Escherichia coli
Author(s) -
Meury Jean
Publication year - 1994
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1994.tb06717.x
Subject(s) - osmotic shock , protease , osmotic concentration , escherichia coli , strain (injury) , chemistry , osmotic pressure , biochemistry , biology , enzyme , gene , anatomy
When a strain of Escherichia coli , expressing a hybrid protein GalK‐β‐Gal, is shifted to high osmolarity, the β‐galactosidase activity strongly decreases within 20 min of shock. The loss of β‐galactosidase activity results from degradation of the hybrid protein under osmotic stress. The results raise the possibility that osmotic stress induces a specific osmodependent protease.
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