title: AqpZ-mediated water permeability in Escherichia coli measured by stopped-flow spectroscopy.
abstract: We report that the water permeability of wild-type Escherichia coli during exponential growth is comparable to that of an aqpZ disruption mutant. In contrast, an increase in permeability is observed for the wild type at the onset of the stationary stage with no significant corresponding change in the permeability of the mutant.
authors.affiliation: Department of Chemistry and Biochemistry, University of Oklahoma, 620 Parrington Oval, Room 208, Norman, OK 73019, USA.
authors.forename: Rachael C
authors.initials: RC
authors.lastname: Mallo
authors.forename: Michael T
authors.initials: MT
authors.lastname: Ashby
mesh_terms: D020346:Aquaporins / Q000032:analysis / Q000378:metabolism*; D004926:Escherichia coli / Q000254:growth & development / Q000378:metabolism*; D029968:Escherichia coli Proteins / Q000032:analysis / Q000378:metabolism*; D008565:Membrane Proteins / Q000032:analysis / Q000378:metabolism*; D010539:Permeability; D013057:Spectrum Analysis; D014867:Water / Q000378:metabolism*
chemical_list: D020346:Aquaporins; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; C106425:aqpZ protein, E coli; D014867:Water