Polyamine transport and role of potE in response to osmotic stress in Escherichia coli.
When transport of polyamines in Escherichia coli was examined, putrescine excretion was observed under two different physiological conditions: (i) strictly correlated to growth and (ii) following a hyperosmotic shock. Spermidine was not excreted. Characterization of a deletion mutant showed that PotE is not involved in these transport processes.
Schiller
D
D
Institut für Biochemie, Universität Köln, D-50674 Cologne, Germany.
Kruse
D
D
Kneifel
H
H
Krämer
R
R
Burkovski
A
A
D017920:Antiporters / Q000235:genetics / Q000378:metabolism*; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D004926:Escherichia coli / Q000378:metabolism*; D029968:Escherichia coli Proteins; D017353:Gene Deletion; D009997:Osmotic Pressure; D011073:Polyamines / Q000378:metabolism*; D011700:Putrescine / Q000378:metabolism
D017920:Antiporters; D001426:Bacterial Proteins; D029968:Escherichia coli Proteins; D011073:Polyamines; C071519:PotE protein, E coli; D011700:Putrescine