T
Tracy L. Raivio
Researcher at University of Alberta
Publications - 61
Citations - 4335
Tracy L. Raivio is an academic researcher from University of Alberta. The author has contributed to research in topics: Bacterial outer membrane & Response regulator. The author has an hindex of 31, co-authored 55 publications receiving 3812 citations. Previous affiliations of Tracy L. Raivio include University of Calgary & Princeton University.
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Journal ArticleDOI
Periplasmic Stress and ECF Sigma Factors
TL;DR: Prevailing evidence suggests that, in E. coli, a second envelope stress response controlled by the Cpx two-component system ensures proper pilus assembly.
Journal ArticleDOI
Envelope stress responses and Gram-negative bacterial pathogenesis.
TL;DR: The sigma(E), Cpx and Bae envelope stress responses of Escherichia coli are involved in the maintenance, adaptation and protection of the bacterial envelope in response to a variety of stressors as mentioned in this paper.
Journal ArticleDOI
Transduction of envelope stress in Escherichia coli by the Cpx two-component system.
TL;DR: The data support a model for Cpx-mediated signal transduction in which the kinase/phosphatase ratio is elevated by stress, and the sequence and phenotypes of periplasmic cpx* mutations suggest that interactions with a periplasmsic signaling molecule may normally dictate a decreased kinase-phosph atase ratio under nonstress conditions.
Journal ArticleDOI
The Cpx envelope stress response is controlled by amplification and feedback inhibition
TL;DR: The ability to autoactivate and then subsequently repress allows for a temporary amplification of the Cpx response that may be important in rescuing cells from transitory stresses and cueing the appropriately timed elaboration of virulence factors.
Journal ArticleDOI
Characterization of the Cpx Regulon in Escherichia coli Strain MC4100
Nancy L. Price,Tracy L. Raivio +1 more
TL;DR: It is found that while there appears to be little overlap between the Cpx and Bae envelope stress responses, the sigma(E) and Cpx responses reciprocally regulate a large group of strongly Cpx-regulated genes, most of which are uncharacterized.