Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response

Kocan M, Schaffer S, Ishige T, Sorger-Herrmann U, Wendisch VF, Bott M (2006)
Journal of Bacteriology 188(2): 724-732.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Corynebacterium glutamicum contains genes for 13 two-component signal transduction systems. In order to test for their essentiality and involvement in the adaptive response to phosphate (Pi) starvation, a set of 12 deletion mutants was constructed. One of the mutants was specifically impaired in its ability to grow under Pi limitation, and therefore the genes lacking in this strain were named phoS (encoding the sensor kinase) and phoR (encoding the response regulator). DNA microarray analyses with the C glutamicum wild type and the Delta phoRS mutant supported a role for the PhoRS system in the adaptation to P, starvation. In contrast to the wild type, the Delta phoRS mutant did not induce the known Pi starvation-inducible (psi) genes within 1 hour after a shift from P, excess to Pi limitation, except for the pstSCAB operon, which was still partially induced. This indicates an activator function for PhoR and the existence of at least one additional regulator of the pst operon. Primer extension analysis of selected psi genes (pstS, ugpA, phoR, ushA, and nucH) confirmed the microarray data and provided evidence for positive autoregulation of the phoRS genes.
Erscheinungsjahr
Zeitschriftentitel
Journal of Bacteriology
Band
188
Zeitschriftennummer
2
Seite
724-732
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Kocan M, Schaffer S, Ishige T, Sorger-Herrmann U, Wendisch VF, Bott M. Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response. Journal of Bacteriology. 2006;188(2):724-732.
Kocan, M., Schaffer, S., Ishige, T., Sorger-Herrmann, U., Wendisch, V. F., & Bott, M. (2006). Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response. Journal of Bacteriology, 188(2), 724-732. doi:10.1128/Jb.188.2.724-732.2006
Kocan, M., Schaffer, S., Ishige, T., Sorger-Herrmann, U., Wendisch, V. F., and Bott, M. (2006). Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response. Journal of Bacteriology 188, 724-732.
Kocan, M., et al., 2006. Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response. Journal of Bacteriology, 188(2), p 724-732.
M. Kocan, et al., “Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response”, Journal of Bacteriology, vol. 188, 2006, pp. 724-732.
Kocan, M., Schaffer, S., Ishige, T., Sorger-Herrmann, U., Wendisch, V.F., Bott, M.: Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response. Journal of Bacteriology. 188, 724-732 (2006).
Kocan, M., Schaffer, S., Ishige, T., Sorger-Herrmann, U., Wendisch, Volker F., and Bott, M. “Two-component systems of Corynebacterium glutamicum: Deletion analysis and involvement of the PhoS-PhoR system in the phosphate starvation response”. Journal of Bacteriology 188.2 (2006): 724-732.

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