title: Aquaporin Z of Escherichia coli: reassessment of its regulation and physiological role.
abstract: 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.
authors.affiliation: Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, USA.
authors.forename: Eric
authors.initials: E
authors.lastname: Soupene
authors.forename: Natalie
authors.initials: N
authors.lastname: King
authors.forename: Haidy
authors.initials: H
authors.lastname: Lee
authors.forename: Sydney
authors.initials: S
authors.lastname: Kustu
mesh_terms: 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
chemical_list: D020346:Aquaporins; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; C106425:aqpZ protein, E coli