Aquaporin Z of Escherichia coli: reassessment of its regulation and physiological role.
Transcription of an aqpZ-lac fusion in a single copy on the Escherichia coli chromosome increased as cells entered the stationary growth phase. This was true in a variety of media, and increased transcription in enriched medium required the RpoS sigma factor. Expression of the aqpZ-lac fusion was not affected by up- or downshifts in osmolality. Disruption of aqpZ had no detectable adverse effects.
Soupene
Eric
E
Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, USA.
King
Natalie
N
Lee
Haidy
H
Kustu
Sydney
S
D020346:Aquaporins / Q000235:genetics / Q000378:metabolism*; D004926:Escherichia coli / Q000254:growth & development / Q000378:metabolism*; D029968:Escherichia coli Proteins; D017353:Gene Deletion; D008565:Membrane Proteins; D009994:Osmolar Concentration
D020346:Aquaporins; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; C106425:aqpZ protein, E coli