dc.creatorAcuña, J.
dc.creatorRojas, J.
dc.creatorAmaro, A.
dc.creatorToledo, H.
dc.creatorJerez, C.
dc.date.accessioned2018-12-20T15:24:40Z
dc.date.available2018-12-20T15:24:40Z
dc.date.created2018-12-20T15:24:40Z
dc.date.issued1992
dc.identifierFEMS Microbiology Letters, Volumen 96, Issue 1, 1992, Pages 37-42
dc.identifier15746968
dc.identifier03781097
dc.identifier10.1016/0378-1097(92)90453-U
dc.identifierhttp://repositorio.uchile.cl/handle/2250/159043
dc.description.abstractNi2+, Fe2+ and Cu2+ were attractants and aspartate was an apparent repellent for Leptospirillum ferrooxidans, a behaviour opposite to that for Escherichia coli. Membranes from L. ferrooxidans contained proteins with a molecular mass in the range of 80 kDa which were methylated in vitro. Methylation was stimulated in the presence of a membrane-free extract from E. coli, showing the response pattern expected for L. ferrooxidans, increased methylation by Ni2+, and demethylation by aspartate. This suggests the existence of sensory transducers having a common methylation domain with the E. coli methyl-accepting chemotaxis proteins. Total chromosomal DNA digests from L. ferrooxidans, Thiobacillus ferrooxidans and T. thiooxidans hybridized with probes containing different domains of the tar gene from E. coli, implying the presence of tar type genes in the acidophilic bacteria studied.
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
dc.sourceFEMS Microbiology Letters
dc.subjectChemosensory system
dc.subjectLeptospirillum ferrooxidans
dc.subjectProtein methylation
dc.subjectThiobacillus ferrooxidans
dc.titleChemotaxis of Leptospirillum ferrooxidans and other acidophilic chemolithotrophs: comparison with the Escherichia coli chemosensory system
dc.typeArtículos de revistas


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