Open AccessProteins induced by high osmotic pressure in Escherichia coli
Author(s) -
Clark David,
Parker Jack
Publication year - 1984
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.1574-6968.1984.tb01380.x
Subject(s) - osmotic pressure , regulon , escherichia coli , osmotic shock , osmosis , chemistry , heat shock protein , gel electrophoresis , osmotic concentration , shock (circulatory) , biochemistry , biology , medicine , gene , membrane
The protein composition of Escherichia coli grown under conditions of high and low osmotic pressure and following shifts from one condition to the other was examined by two‐dimensional gel electrophoresis. Upon shift to high osmotic pressure there is a rapid induction of a group of proteins whose synthesis persists during prolonged growth at elevated osmotic pressure. An osmotic down‐shift results in the repression of these proteins. Neither shift induced the heat shock regulon.