Identification, cloning and initial characterisation of FeuPQ in Brucella suis: a new sub-family of two-component regulatory systems

To cause disease, Brucella species have to adapt to a range of different environments. Environmental sensing and adaptive responses in bacteria often involve the concerted action of a two-component regulatory system, consisting of sensor and response regulator components. Amplification and sequence...

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Veröffentlicht in:FEMS microbiology letters 1998-05, Vol.162 (1), p.143-150
Hauptverfasser: Dorrell, N, Spencer, S, Foulonge, V, Guigue-Talet, P, O'Callaghan, D, Wren, B.W
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container_issue 1
container_start_page 143
container_title FEMS microbiology letters
container_volume 162
creator Dorrell, N
Spencer, S
Foulonge, V
Guigue-Talet, P
O'Callaghan, D
Wren, B.W
description To cause disease, Brucella species have to adapt to a range of different environments. Environmental sensing and adaptive responses in bacteria often involve the concerted action of a two-component regulatory system, consisting of sensor and response regulator components. Amplification and sequence analysis of response regulators from Brucelia species identified a response regulator sequence with 96% similarity to Rhizobium leguminosarum FeuP. In R. leguminosarum, the FeuPQ two-component system is involved in the regulation of iron uptake. A Brucella suis feuP isogenic mutant was constructed but was not attenuated in the murine brucellosis model. The survival and multiplication of the mutant in macrophages was also unaffected. The FeuPQ regulon represents a newly characterised subfamily of response regulators.
doi_str_mv 10.1111/j.1574-6968.1998.tb12991.x
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Environmental sensing and adaptive responses in bacteria often involve the concerted action of a two-component regulatory system, consisting of sensor and response regulator components. Amplification and sequence analysis of response regulators from Brucelia species identified a response regulator sequence with 96% similarity to Rhizobium leguminosarum FeuP. In R. leguminosarum, the FeuPQ two-component system is involved in the regulation of iron uptake. A Brucella suis feuP isogenic mutant was constructed but was not attenuated in the murine brucellosis model. The survival and multiplication of the mutant in macrophages was also unaffected. 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Environmental sensing and adaptive responses in bacteria often involve the concerted action of a two-component regulatory system, consisting of sensor and response regulator components. Amplification and sequence analysis of response regulators from Brucelia species identified a response regulator sequence with 96% similarity to Rhizobium leguminosarum FeuP. In R. leguminosarum, the FeuPQ two-component system is involved in the regulation of iron uptake. A Brucella suis feuP isogenic mutant was constructed but was not attenuated in the murine brucellosis model. The survival and multiplication of the mutant in macrophages was also unaffected. The FeuPQ regulon represents a newly characterised subfamily of response regulators.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>9595675</pmid><doi>10.1111/j.1574-6968.1998.tb12991.x</doi><tpages>8</tpages></addata></record>
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identifier ISSN: 0378-1097
ispartof FEMS microbiology letters, 1998-05, Vol.162 (1), p.143-150
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source Oxford University Press Journals All Titles (1996-Current); MEDLINE; Wiley Online Library Journals Frontfile Complete; Alma/SFX Local Collection
subjects Amino Acid Sequence
Animals
Bacterial Proteins
Bacteriology
Biological and medical sciences
Brucella
Brucella - genetics
Brucella - growth & development
Brucella - metabolism
Brucella - pathogenicity
Brucella melitensis - genetics
Brucella suis
Brucellosis
Brucellosis - microbiology
Cell Line
Cloning
Cloning, Molecular
Deferoxamine - pharmacology
DNA, Bacterial - analysis
FeuPQ
Fundamental and applied biological sciences. Psychology
genbank/x87324
genbank/y13235
Humans
Iron
Isogenic mutant
Macrophages
Mice
Mice, Inbred BALB C
Microbiology
Molecular Sequence Data
Monocytes - microbiology
Multiplication
Mutation
Permeability, membrane transport, intracellular transport
PhoPQ
Regulators
Regulatory sequences
Regulon - genetics
Rhizobium leguminosarum
sequence alignment
Sequence Analysis, DNA
sequence homology
Sequence Homology, Amino Acid
Spleen - microbiology
Transcription Factors - genetics
Transcription Factors - physiology
Two‐component regulatory system
title Identification, cloning and initial characterisation of FeuPQ in Brucella suis: a new sub-family of two-component regulatory systems
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