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FixJ family regulator AcfR of Azorhizobium caulinodans is involved in symbiosis with the host plant by Liu, Wei (author);Bai, Xue (author);Li, Yan (author);Zhang, Haikun (author);Hu, Xiaoke (author) is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is FixJ family regulator AcfR of Azorhizobium caulinodans is involved in symbiosis with the host plant about?
## Abstract ## Background A wide variety of bacterial adaptative responses to environmental conditions are mediated by signal transduction pathways. Two-component signal transduction systems are one of the predominant means used by bacteria to sense the signals of the host plant and adjust their interaction behaviour. A total of seven open reading frames have been identified as putative two-component response regulators in the gram-negative nitrogen-fixing bacteria Azorhizobium caulinodans ORS571. However, the biological functions of these response regulators in the symbiotic interactions between A. caulinodans ORS571 and the host plant Sesbania rostrata have not been elucidated to date. ## Results In this study, we identified and investigated a two-component response regulator, AcfR, with a phosphorylatable N-terminal REC (receiver) domain and a C-terminal HTH (helix-turn-helix) LuxR DNA-binding domain in A. caulinodans ORS571. Phylogenetic analysis showed that AcfR possessed close evolutionary relationships with NarL/FixJ family regulators. In addition, six histidine kinases containing HATPase\_c and HisKA domains were predicted to interact with AcfR. Furthermore, the biological
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- Author
- Liu, Wei (author);Bai, Xue (author);Li, Yan (author);Zhang, Haikun (author);Hu, Xiaoke (author)
- Publisher
- Springer Science and Business Media LLC
- Published
- 2021
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)