TtsI, a key regulator of Rhizobium species NGR234 is required for type III-dependent protein secretion and synthesis of rhamnose-rich polysaccharides.

@article{Marie2004TtsIAK,
  title={TtsI, a key regulator of Rhizobium species NGR234 is required for type III-dependent protein secretion and synthesis of rhamnose-rich polysaccharides.},
  author={Corinne Marie and William J. Deakin and Tuula Ojanen-Reuhs and Ericka Diallo and Brad L Reuhs and William J. Broughton and Xavier Perret},
  journal={Molecular plant-microbe interactions : MPMI},
  year={2004},
  volume={17 9},
  pages={958-66}
}
Formation of nitrogen-fixing nodules on legume roots by Rhizobium sp. NGR234 requires an array of bacterial factors, including nodulation outer proteins (Nops) secreted through a type III secretion system (TTSS). Secretion of Nops is abolished upon inactivation of ttsI (formerly y4xI), a protein with characteristics of two-component response regulators that was predicted to activate transcription of TTSS-related genes. During the symbiotic interaction, the phenotype of NGR omega ttsI differs… CONTINUE READING

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