Field studies on the migration of arsenic and cadmium in a carbonate gravel aquifer near Munich (Germany)

Zahn, Michael T.; Seiler, Klaus-Peter

doi:10.1016/0022-1694(92)90255-t

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…Blax) between GroEL and non-native pre-fllactamase (Blax), which is in equilibrium with native pre-fllactamase (Blay), as indicated by the low enzymatic activity. The equilibrium dissociation constant of GroEL" Blax has been estimated to be in the nanomolar range or smaller [34]. The concentration of free GroEL, therefore, is less than 1% at equimolar concentrations of substrate protein and GroEL binding sites.…”

Section: Discussionmentioning

confidence: 98%

Effect of single point mutations in citrate synthase on binding to GroEL

Zahn¹,

Lindner²,

Axmann³

et al. 1996

FEBS Letters

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Six single point mutants of yeast citrate synthase were analyzed for binding to the molecular chaperone GroEL. In contrast to the wild-type and G276S, all other G276-mutants were able to displace pre-/]-Iactamase from GroEL. The off-rate constant for pre-/3-1actamase must be at least partially rate-limiting, leading to an equilibrium dissociation constant between 10 -l° M and 10-12M. Direct evidence for binding of citrate synthase was obtained from gel filtration experiments. The results suggest that thermodynamic rather than structural features of the mutants determine the degree of binding to the chaperone.

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Section: Discussionmentioning

confidence: 98%

Effect of single point mutations in citrate synthase on binding to GroEL

Zahn¹,

Lindner²,

Axmann³

et al. 1996

FEBS Letters

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“…Alexander and Seiler, 1983;Zahn and Seiler, 1992). Adequate matches of predicted to observed curves did not succeed as in column experiments due to tracer transport through different kinds of pathways in the heterogeneous aquifer.…”

Section: Introductionmentioning

confidence: 87%

Determination of bacterial and viral transport parameters in a gravel aquifer assuming linear kinetic sorption and desorption

Mallen

Małoszewski

Flynn

et al. 2005

Journal of Hydrology

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“…Grain size analyses of borehole samples revealed a wide variation in textures, ranging from fine sands to sand and gravel sequences; these occasionally contain localized iron oxide stained beds. Zahn and Seiler (1992) estimated the gravels to have an effective porosity of 11%. Hydrochemical monitoring of site groundwater revealed it to have a relatively consistent, near‐neutral pH and an ionic strength dominated by calcium bicarbonate (Seiler and Müller, 2001).…”

Section: Methodsmentioning

confidence: 99%

Characterizing Aquifer Heterogeneity Using Bacterial and Bacteriophage Tracers

et al. 2015

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Microorganisms constitute an almost exclusive form of life in the earth's subsurface environment (not including caves), particularly at depths exceeding the soil horizon. While of broad interest to ecology and geology, scientific interest in the fate and transport of microorganisms, particularly those introduced through the anthropogenic environment, has focused on understanding the subsurface environment as a pathway for human pathogens and on optimizing the use of microbial organisms for remediation of potable groundwater. This special section, inspired by the 2014 Ninth International Symposium for Subsurface Microbiology, brings together recent efforts to better understand the spatiotemporal occurrence of anthropogenic microbial groundwater contamination and the fate and transport of microbes in the subsurface environment: in soils, deep unsaturated zones, and within aquifer systems. Work includes field reconnaissance, controlled laboratory studies to improve our understanding of specific fate and transport processes, and the development and application of improved mechanistic understanding of microbial fate and transport processes in the subsurface environment. The findings confirm and also challenge the limitations of our current understanding of highly complex microbial fate and transport processes across spatiotemporal scales in the subsurface environment; they also add to the increasing knowledge base to improve our ability to protect drinking water resources and perform in situ environmental remediation.

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Field studies on the migration of arsenic and cadmium in a carbonate gravel aquifer near Munich (Germany)

Cited by 9 publications

References 8 publications

Effect of single point mutations in citrate synthase on binding to GroEL

Effect of single point mutations in citrate synthase on binding to GroEL

Determination of bacterial and viral transport parameters in a gravel aquifer assuming linear kinetic sorption and desorption

Characterizing Aquifer Heterogeneity Using Bacterial and Bacteriophage Tracers

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