Dataset Information
Transcription profiling of Sinorhizobium meliloti genes upon rpoE1 over-expression
Ontology highlight
ABSTRACT:
transcription profile of a strain over-expressing rpoE1 under the control of the arabinose-dependent
PBAD promoter of plasmid pMLBAD-rpoE1. A strain containing the empty vector pMLBAD
was used as a reference.
ORGANISM(S): Sinorhizobium meliloti
SUBMITTER: Claude Bruand
PROVIDER: E-MEXP-3471 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Publications
Sinorhizobium meliloti sigma factors RpoE1 and RpoE4 are activated in stationary phase in response to sulfite.
PloS one 20121130 11
Rhizobia are soil bacteria able to establish a nitrogen-fixing symbiosis with legume plants. Both in soil and in planta, rhizobia spend non-growing periods resembling the stationary phase of in vitro-cultured bacteria. The primary objective of this work was to better characterize gene regulation in this biologically relevant growth stage in Sinorhizobium meliloti. By a tap-tag/mass spectrometry approach, we identified five sigma factors co-purifying with the RNA polymerase in stationary phase: t ...[more]
