PtrA is required for coordinate regulation of gene expression during phosphate depletion in a marine Synechococcus

ABSTRACT: The genome of the marine Synechococcus sp. WH8102 displays a minimal regulatory network yet physiological and molecular responses of this organism are tuned to episodic limitation for nitrogen and phosphorus. Microarray analyses have demonstrated a key role for the two-component regulatory system, PhoBR, in the regulation of P transport and metabolism in this strain. However, there is some evidence that another regulator, SYNW1019 (designated as ptrA), probably under the control of PhoB, is involved in the wider response to P-depletion. PtrA is one of only two genome encoded DNA binding proteins of the CRP family in Synechococcus sp. WH8102, and a potential transcriptional regulator with homology to NtcA, the global nitrogen regulator in cyanobacteria. To define the precise role of this re

ORGANISM(S): Synechococcus sp. WH 8102

SUBMITTER: Ian Paulsen 

PROVIDER: E-GEOD-18511 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress