Biochemistry of arsenic detoxification
WebMar 15, 2024 · Sometimes, arsenate is metabolized by bacterial respiration. In this section, the mechanism of bacterial arsenic detoxification has been discussed and basic mechanisms for arsenic detoxification are represented by Fig. 1. Arsenate Reduction. In ars operon, ArsC enzyme plays key role in arsenate reduction. WebOct 15, 2005 · The results imply that, when S. meliloti is exposed to environmental arsenate, arsenate enters the cell through phosphate transport systems and is reduced to arsenite by ArsC, which is the first report of an aquaglyceroporin with a physiological function in arsenic resistance. ABSTRACT We report a novel pathway for arsenic detoxification in the …
Biochemistry of arsenic detoxification
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WebAbstract. Arsenic is present in many environments and is released by various natural processes and anthropogenic actions. Although arsenic is recognized to cause a wide … WebApr 20, 2012 · Arsenic detoxification is thought to often proceed through the Challenger pathway, as it is the case for mammals (Drobna et al., 2009), with the notable possible exception of a pathway involving the recently discovered gene As3MT [see history in (Pierce et al., 2012)]. Nevertheless, it has long been known that some living organisms tolerate, …
WebMay 23, 2013 · Arsenic is present in many environments and is released by various natural processes and anthropogenic actions. Although arsenic is recognized to cause a wide range of adverse health effects in humans, … WebMar 2, 2024 · Arsenic is a public concern due to its widespread occurrence and carcinogenicity. Consumption of arsenic-contaminated fish is an important exposure pathway for human health. This study focused on understanding how exposure to arsenic-contaminated fish is informative to human health risk assessment. While the …
WebNov 8, 2005 · Mechanism of arsenic uptake and detoxification in plants. Although largely unknown in plants, the mechanisms of As detoxification have been well characterized in bacteria and yeast, which commonly achieve tolerance to As by the reduction of As V to As III by arsenate reductase enzymes, and then the exclusion of toxic oxyanions As III from … WebNov 1, 2002 · To depict the arsenic detoxification functional gene patterns, 429 soil samples were collected from 39 paddy fields across four climatic zones in China, with …
WebAlthough arsenic is recognized to cause a wide range of adverse health effects in humans, diverse bacteria can metabolize it by detoxification and energy conservation reactions. This review highlights the current understanding of the ecology, biochemistry and genomics of these bacteria, and their potential application in the treatment of ...
WebOct 1, 2002 · All living organisms have systems for arsenic detoxification. The common themes are (a) uptake of As(V) in the form of arsenate by phosphate transporters, (b) … how many hours does a part time employee workWebThe biochemistry of arsenic Francis C. Knowles and Andrew A. Benson The process of arsenic detoxification in marine algae has revealed basic mechanisms for the action of … how altimeters workWebApr 20, 2012 · Geochemistry often reveals unexpected (anti)correlations. Arsenic (As) and selenium (Se) are cases in point. We explore the hypothesis that bacteria living in an As-replete environment recruited a biological process involving Se and sulfur to fulfil their need for As detoxification. how alternating current is generatedWebEnzymatic methylation of arsenic is a detoxification process in microorganisms but in humans may activate the metalloid to more carcinogenic species. We describe the first structure of an As(III) S-adenosylmethionine methyltransferase by X-ray crystallography that reveals a novel As(III) binding domain. how many hours does a person need to sleepWebArsenic can accumulate and can be subject to various biotransformations including reduction, oxidation, and methylation. Bacterial methylation of inorganic arsenic is … how many hours does a pe teacher workWebMay 1, 1983 · The process of arsenic detoxification in marine algae has revealed basic mechanisms for the action of arsenic on cells and their proteins. 178 The biochemistry … how many hours does a person work in a yearhow many hours does a person sleep