Relevant bibliographies by topics / CzcCBA transporter

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'CzcCBA transporter'

Author: Grafiati
Published: 11 March 2023
Last updated: 31 July 2025

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Journal articles on the topic "CzcCBA transporter"

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Leedjärv, Anu, Angela Ivask, and Marko Virta. "Interplay of Different Transporters in the Mediation of Divalent Heavy Metal Resistance in Pseudomonas putida KT2440." Journal of Bacteriology 190, no. 8 (2007): 2680–89. http://dx.doi.org/10.1128/jb.01494-07.

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ABSTRACT According to in silico analysis, the genome of Pseudomonas putida KT2440 encodes at least four Zn/Cd/Pb efflux transporters—two P-type ATPases (CadA1 and CadA2) and two czc chemiosmotic transporters (CzcCBA1 and CzcCBA2). In this study we showed that all these transporters are functional, but under laboratory conditions only two of them were involved in the mediation of heavy metal resistance in P. putida KT2440. CadA2 conferred Cd2+ and Pb2+ resistance, whereas CzcCBA1 was involved in export of Zn2+, Cd2+, and possibly Pb2+. CadA1, although nonfunctional in P. putida, improved Zn2+ r
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2

Anton, Andreas, Cornelia Große, Jana Reißmann, Thomas Pribyl, and Dietrich H. Nies. "CzcD Is a Heavy Metal Ion Transporter Involved in Regulation of Heavy Metal Resistance in Ralstonia sp. Strain CH34." Journal of Bacteriology 181, no. 22 (1999): 6876–81. http://dx.doi.org/10.1128/jb.181.22.6876-6881.1999.

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ABSTRACT The Czc system of Ralstonia sp. strain CH34 mediates resistance to cobalt, zinc, and cadmium through ion efflux catalyzed by the CzcCB2A cation-proton antiporter. The CzcD protein is involved in the regulation of the Czc system. It is a membrane-bound protein with at least four transmembrane α-helices and is a member of a subfamily of the cation diffusion facilitator (CDF) protein family, which occurs in all three domains of life. The deletion ofczcD in a Ralstonia sp. led to partially constitutive expression of the Czc system due to an increased transcription of the structural czcCBA
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3

Thadtapong, Nalumon, Soraya Chaturongakul, Sunhapas Soodvilai, and Padungsri Dubbs. "Colistin and Carbapenem-Resistant Acinetobacter baumannii Aci46 in Thailand: Genome Analysis and Antibiotic Resistance Profiling." Antibiotics 10, no. 9 (2021): 1054. http://dx.doi.org/10.3390/antibiotics10091054.

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Resistance to the last-line antibiotics against invasive Gram-negative bacterial infection is a rising concern in public health. Multidrug resistant (MDR) Acinetobacter baumannii Aci46 can resist colistin and carbapenems with a minimum inhibitory concentration of 512 µg/mL as determined by microdilution method and shows no zone of inhibition by disk diffusion method. These phenotypic characteristics prompted us to further investigate the genotypic characteristics of Aci46. Next generation sequencing was applied in this study to obtain whole genome data. We determined that Aci46 belongs to Past
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4

Legatzki, Antje, Gregor Grass, Andreas Anton, Christopher Rensing, and Dietrich H. Nies. "Interplay of the Czc System and Two P-Type ATPases in Conferring Metal Resistance to Ralstonia metallidurans." Journal of Bacteriology 185, no. 15 (2003): 4354–61. http://dx.doi.org/10.1128/jb.185.15.4354-4361.2003.

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ABSTRACT Cadmium and zinc are removed from cells of Ralstonia metallidurans by the CzcCBA efflux pump and by two soft-metal-transporting P-type ATPases, CadA and ZntA. The czcCBA genes are located on plasmid pMOL30, and the cadA and zntA genes are on the bacterial chromosome. Expression of zntA from R. metallidurans in Escherichia coli predominantly mediated resistance to zinc, and expression of cadA predominantly mediated resistance to cadmium. Both transporters decreased the cellular content of zinc or cadmium in this host. In the plasmid-free R. metallidurans strain AE104, single gene delet
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5

Vaccaro, Brian J., W. Andrew Lancaster, Michael P. Thorgersen, et al. "Novel Metal Cation Resistance Systems from Mutant Fitness Analysis of Denitrifying Pseudomonas stutzeri." Applied and Environmental Microbiology 82, no. 19 (2016): 6046–56. http://dx.doi.org/10.1128/aem.01845-16.

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ABSTRACTMetal ion transport systems have been studied extensively, but the specificity of a given transporter is often unclear from amino acid sequence data alone. In this study, predicted Cu2+and Zn2+resistance systems inPseudomonas stutzeristrain RCH2 are compared with those experimentally implicated in Cu2+and Zn2+resistance, as determined by using a DNA-barcoded transposon mutant library. Mutant fitness data obtained under denitrifying conditions are combined with regulon predictions to yield a much more comprehensive picture of Cu2+and Zn2+resistance in strain RCH2. The results not only c
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6

Gibbons, Sean M., Kevin Feris, Michele A. McGuirl, et al. "Use of Microcalorimetry To Determine the Costs and Benefits toPseudomonas putidaStrain KT2440 of Harboring Cadmium Efflux Genes." Applied and Environmental Microbiology 77, no. 1 (2010): 108–13. http://dx.doi.org/10.1128/aem.01187-10.

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ABSTRACTA novel microcalorimetric approach was used to analyze the responses of a metal-tolerant soil bacterium (Pseudomonas putidastrain KT2440) to metal resistance gene deletions in cadmium-amended media. As hypothesized, under cadmium stress, the wild-type strain benefited from the resistance genes by entering the exponential growth phase earlier than two knockout strains. In the absence of cadmium, strain KT1, carrying a deletion in the main component (czcA1) of a Cd/Zn chemiosmotic efflux transporter (CzcCBA1), grew more efficiently than the wild type and released ∼700 kJ (per mole of bio
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7

Munkelt, Doreen, Gregor Grass, and Dietrich H. Nies. "The Chromosomally Encoded Cation Diffusion Facilitator Proteins DmeF and FieF from Wautersia metallidurans CH34 Are Transporters of Broad Metal Specificity." Journal of Bacteriology 186, no. 23 (2004): 8036–43. http://dx.doi.org/10.1128/jb.186.23.8036-8043.2004.

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ABSTRACT Genomic sequencing of the β-proteobacterium Wautersia (previously Ralstonia) metallidurans CH34 revealed the presence of three genes encoding proteins of the cation diffusion facilitator (CDF) family. One, CzcD, was previously found to be part of the high-level metal resistance system Czc that mediates the efflux of Co(II), Zn(II), and Cd(II) ions catalyzed by the CzcCBA cation-proton antiporter. The second CDF protein, FieF, is probably mainly a ferrous iron detoxifying protein but also mediated some resistance against other divalent metal cations such as Zn(II), Co(II), Cd(II), and
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8

Gao, Fanglin, Wanquan Xiang, Xiaoyan Zhang, Xiaoxing Huang, Feifei She, and Yancheng Wen. "Copper enhances tetracycline resistance via the efflux transporter CrdAB-CzcBA in Helicobacter pylori." Frontiers in Medicine 12 (July 21, 2025). https://doi.org/10.3389/fmed.2025.1552537.

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Helicobacter pylori infection is a significant risk factor for various gastrointestinal diseases, while the standard triple therapy for its eradication is increasingly compromised by antibiotic resistance. This study investigates the role of the CrdAB-CzcBA efflux pump and its regulation by copper in tetracycline resistance in H. pylori. Using minimum inhibitory concentration (MIC) determination and growth curve analysis, we found that the deletion of crdA or czcA significantly reduced tetracycline resistance, while overexpression of CrdAB-CzcBA under the urease promoter enhanced bacterial res
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9

Alquethamy, Saleh F., Felise G. Adams, Ram Maharjan, et al. "The molecular basis of Acinetobacter baumannii cadmium toxicity and resistance." Applied and Environmental Microbiology, September 8, 2021. http://dx.doi.org/10.1128/aem.01718-21.

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Acinetobacter species are ubiquitous Gram-negative bacteria that can be found in water, soil, and as commensals of the human skin. The successful inhabitation of Acinetobacter species in diverse environments is primarily attributable to the expression of an arsenal of stress resistance determinants, which includes an extensive repertoire of metal ion efflux systems. Metal ion homeostasis in the hospital pathogen Acinetobacter baumannii contributes to pathogenesis, however, insights into its metal ion transporters for environmental persistence are lacking. Here, we studied the impact of cadmium
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10

Ramnarine, Stephen D. B., Omar Ali, Jayaraj Jayaraman, and Adesh Ramsubhag. "Early transcriptional changes of heavy metal resistance and multiple efflux genes in Xanthomonas campestris pv. campestris under copper and heavy metal ion stress." BMC Microbiology 24, no. 1 (2024). http://dx.doi.org/10.1186/s12866-024-03206-7.

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Abstract Background Copper-induced gene expression in Xanthomonas campestris pv. campestris (Xcc) is typically evaluated using targeted approaches involving qPCR. The global response to copper stress in Xcc and resistance to metal induced damage is not well understood. However, homologs of heavy metal efflux genes from the related Stenotrophomonas genus are found in Xanthomonas which suggests that metal related efflux may also be present. Methods and Results Gene expression in Xcc strain BrA1 exposed to 0.8 mM CuSO4.5H2O for 15 minutes was captured using RNA-seq analysis. Changes in expression
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Dissertations / Theses on the topic "CzcCBA transporter"

1

Sendra, Véronique. "Homéostasie et résistance au cuivre chez Cupriavidusmetallidurans CH34 : la proteine CopH et les transporteurs membranaires CuSa et CzcA." Grenoble 1, 2007. http://www.theses.fr/2007GRE10139.

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Le gène copH est l'un des 19 gènes constituant le cluster cop, impliqué dans la détoxication du cuivre dans le cytoplasme et le périplasme, chez Cupriavidus meta//idurans CH34, souche modèle pour l'étude de la résistance aux métaux lourds chez les bactéries. La protéine CopH, localisée dans le périplasme, possède une structure et une fonction inconnues mais son expression est stimulée par la présence de cuivre. Nous avons analysé les propriétés de liaison CopH-Cu: les données montrent la présence d'un centre Cu(II) de type 2 dans un champ de ligands azotés. Les 2 seuls résidus histidine, a pri
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2

NESLER, Andrea. "MODULATING HEAVY METAL ACCUMULATION IN PLANTS: OVEREXPRESSION OF THE PSEUDOMONAS PUTIDA EFFLUX COMPLEX CZCCBA." Doctoral thesis, 2013. http://hdl.handle.net/11562/540150.

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Negli ultimi decenni aree sempre maggiori sono state sfruttate, degradate ed inquinate dalle attività antropiche. Tra gli inquinanti più pericolosi rilasciati nell’ambiente vi sono i metalli pesanti. Questi vengono dispersi nell’ambiente attraverso processi industriali, rilascio di fanghi di depurazione, attività minerarie e pratiche agricole (Hüttermann et al., 1999; Shull, 1998). Queste attività causano un accumulo nell’ambiente di metalli pesanti che sono già naturalmente presenti nei suoli (Godbold and Hüttermann, 1985; Breckle, 1991; Nies, 1999). I metalli pesanti grazie alle loro caratte
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3

Sendra, Véronique. "Homéostasie et résistance au cuivre chez Cupriavidus metallidurans CH34 : la protéine CopH et les transporteurs membranaires CusA et CzcA." Phd thesis, 2007. http://tel.archives-ouvertes.fr/tel-00180556.

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Le gène copH est l'un des 19 gènes constituant le cluster cop, impliqué dans la détoxication du cuivre dans le cytoplasme et le périplasme, chez Cupriavidus metallidurans CH34, souche modèle pour l'étude de la résistance aux métaux lourds chez les bactéries. La protéine CopH, localisée dans le périplasme, possède une structure et une fonction inconnues mais son expression est stimulée par la présence de cuivre. Nous avons analysé les propriétés de liaison CopH-Cu : les données montrent la présence d'un centre Cu(II) de type 2 dans un champ de ligands azotés. Les 2 seuls résidus histidine, a pr
APA, Harvard, Vancouver, ISO, and other styles
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