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Bomba Dam et al.
Research in microbiology, 158(4), 330-338 (2007-05-19)
Chemolithotrophic oxidation of reduced sulfur compounds was studied in the betaproteobacterium Tetrathiobacter kashmirensis in correlation with its transposon (Tn5-mob)-inserted mutants impaired in sulfur oxidation (Sox(-)) and found to be carried out via the tetrathionate intermediate (S(4)I) pathway. The group of
Mei Kikumoto et al.
Applied and environmental microbiology, 79(1), 113-120 (2012-10-16)
Thiosulfate dehydrogenase is known to play a significant role in thiosulfate oxidation in the acidophilic, obligately chemolithoautotroph, Acidithiobacillus ferrooxidans. Enzyme activity measured using ferricyanide as the electron acceptor was detected in cell extracts of A. ferrooxidans ATCC 23270 grown on
Wriddhiman Ghosh et al.
Systematic and applied microbiology, 29(5), 396-403 (2006-07-11)
Paracoccus versutus-like isolates from the rhizosphere of Clitoria ternatea, a slender leguminous herb (family--Papilionaceae), found ubiquitously in waste places and village forests of the Lower Gangetic plains of India, presented a case of graduated infraspecific variation that was capped by
Daniel B Grabarczyk et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(52), E7166-E7175 (2015-12-15)
The bacterial Sox (sulfur oxidation) pathway is an important route for the oxidation of inorganic sulfur compounds. Intermediates in the Sox pathway are covalently attached to the heterodimeric carrier protein SoxYZ through conjugation to a cysteine on a protein swinging
Zhanna Bugaytsova et al.
European journal of biochemistry, 271(2), 272-280 (2004-01-14)
The moderately thermophilic bacterium Acidithiobacillus caldus is found in bacterial populations in many bioleaching operations throughout the world. This bacterium oxidizes elemental sulfur and other reduced inorganic sulfur compounds as the sole source of energy. The purpose of this study
Gábor Peintler et al.
Physical chemistry chemical physics : PCCP, 12(10), 2356-2364 (2010-05-08)
It is experimentally proven that the stoichiometry of the tetrathionate-chlorite reaction is 2S4O(2-)6 + 8(1/2)ClO-(2) + 6H2O = 8SO(2-)4 + ClO-(3) + 7(1/2)Cl- + 12H+ near 1:4 molar ratio of the reactants. Re-evaluation of the previously measured front velocity--concentration curves
Caroline C Gillis et al.
Cell host & microbe, 23(1), 54-64 (2017-12-26)
During Salmonella-induced gastroenteritis, mucosal inflammation creates a niche that favors the expansion of the pathogen population over the microbiota. Here, we show that Salmonella Typhimurium infection was accompanied by dysbiosis, decreased butyrate levels, and substantially elevated lactate levels in the
Poul Bennekou et al.
Blood cells, molecules & diseases, 48(2), 102-109 (2011-12-06)
The vanadate-induced increase in passive uptake of calcium and cobalt and their interference were studied in human red cells using (45)Ca and (57)Co as tracers. Vanadate is a potent inhibitor of the Ca-pump in red cells, although in fed cells
Wriddhiman Ghosh et al.
FEMS microbiology letters, 270(1), 124-131 (2007-03-01)
Two tropical leguminous-rhizospheric strains, SST and JT 001, phylogenetically closest to Paracoccus thiocyanatus and Paracoccus pantotrophus, respectively, were isolated on reduced sulfur compounds as sole energy and electron sources. While SST had versatile chemolithotrophic abilities to oxidize thiosulfate, tetrathionate, thiocyanate
Antoine Buetti-Dinh et al.
BMC bioinformatics, 21(1), 23-23 (2020-01-23)
Network inference is an important aim of systems biology. It enables the transformation of OMICs datasets into biological knowledge. It consists of reverse engineering gene regulatory networks from OMICs data, such as RNAseq or mass spectrometry-based proteomics data, through computational
Parameth Thiennimitr et al.
Proceedings of the National Academy of Sciences of the United States of America, 108(42), 17480-17485 (2011-10-05)
Conventional wisdom holds that microbes support their growth in vertebrate hosts by exploiting a large variety of nutrients. We show here that use of a specific nutrient (ethanolamine) confers a marked growth advantage on Salmonella enterica serovar Typhimurium (S. Typhimurium)
T A Pivovarova et al.
Prikladnaia biokhimiia i mikrobiologiia, 48(6), 640-645 (2013-01-22)
Aboriginal and experimental (constructed of pure microbial cultures) communities of acidophilic chemolithotrophs have been studied. The oxidation of elemental sulfur, sodium thiosulfate, and potassium tetrathionate as sole sources of energy has been monitored. The oxidation rate of the experimental community
Rich Boden et al.
Environmental microbiology, 12(10), 2688-2699 (2010-05-21)
A new pathway of dimethylsulfide (DMS) metabolism was identified in a novel species of Gammaproteobacteria, Methylophaga thiooxidans sp. nov., in which tetrathionate (S(4)O(6)(2-)) was the end-product of DMS oxidation. Inhibitor evidence indicated that DMS degradation was initiated by demethylation, catalysed
Lars Ole Simonsen et al.
Blood cells, molecules & diseases, 47(4), 214-225 (2011-10-04)
The passive transport of calcium and cobalt and their interference were studied in human red cells using (45)Ca and (57)Co as tracers. In ATP-depleted cells, with the ATP concentration reduced to about 1μM, the progress curve for (45)Ca uptake at
Amaury Buvignier et al.
Applied and environmental microbiology, 85(15) (2019-05-28)
Several studies undertaken on the biodeterioration of concrete sewer infrastructures have highlighted the better durability of aluminate-based materials. The bacteriostatic effect of aluminum has been suggested to explain the increase in durability of these materials. However, no clear demonstration of
Wan-Zhen Xu et al.
Journal of separation science, 34(14), 1746-1753 (2011-06-16)
The novel surface imprinted polymer composites (MIP/K(2)Ti(4)O(9)) were prepared using dibenzothiophene (DBT) as the template, 4-vinylpyridine as the functional monomer and potassium tetratitanate whisker (K(2)Ti(4)O(9)) as the carrier. The synthetic product was characterized by Fourier transform infrared spectroscopy and scanning
Daniel B Grabarczyk et al.
PloS one, 12(3), e0173395-e0173395 (2017-03-04)
The Sox pathway found in many sulfur bacteria oxidizes thiosulfate to sulfate. Pathway intermediates are covalently bound to a cysteine residue in the carrier protein SoxYZ. We have used biochemical complementation by SoxYZ-conjugates to probe the identity of the intermediates
Leonardo J van Zyl et al.
Applied and environmental microbiology, 74(18), 5686-5694 (2008-07-29)
Acidithiobacillus caldus is a moderately thermophilic, acidophilic bacterium that has been reported to be the dominant sulfur oxidizer in stirred-tank processes used to treat gold-bearing arsenopyrite ores. It is also widely distributed in heap reactors used for the extraction of
Tsuyoshi Sugio et al.
Bioscience, biotechnology, and biochemistry, 73(6), 1381-1386 (2009-06-09)
When tetrathionate-grown Acidithiobacillus ferrooxidans ATCC 23270 cells were incubated with ferric ions and tetrathionate at pH 3.0, ferrous ions were produced enzymatically. Fe(3+)-reductase, which catalyzes Fe(3+) reduction with tetrathionate, was purified to homogeneity not only from tetrathionate-grown, but also from
R Robles-Reyes et al.
Revista latinoamericana de microbiologia, 43(2), 76-83 (2006-10-26)
Salmonella belongs to the Enterobacteriaceae family, and is the cause of illnesses such as enteric fevers, enteritis and septicemia. Accordingly, a necessity exists of researching and developing new techniques,--which must be sensible, specific, economic and fast--for genus determination; all this
David T Riglar et al.
Nature biotechnology, 35(7), 653-658 (2017-05-30)
Bacteria can be engineered to function as diagnostics or therapeutics in the mammalian gut but commercial translation of technologies to accomplish this has been hindered by the susceptibility of synthetic genetic circuits to mutation and unpredictable function during extended gut
Jillian A Jastrzembski et al.
Journal of agricultural and food chemistry, 65(48), 10542-10549 (2017-11-14)
The level of hydrogen sulfide (H
Kristina N-M Daeffler et al.
Molecular systems biology, 13(4), 923-923 (2017-04-05)
There is a groundswell of interest in using genetically engineered sensor bacteria to study gut microbiota pathways, and diagnose or treat associated diseases. Here, we computationally identify the first biological thiosulfate sensor and an improved tetrathionate sensor, both two-component systems
Sebastian E Winter et al.
Nature, 467(7314), 426-429 (2010-09-25)
Salmonella enterica serotype Typhimurium (S. Typhimurium) causes acute gut inflammation by using its virulence factors to invade the intestinal epithelium and survive in mucosal macrophages. The inflammatory response enhances the transmission success of S. Typhimurium by promoting its outgrowth in
Mamoru Haratake et al.
Inorganic chemistry, 48(16), 7805-7811 (2009-09-03)
The molecular details of the selenium metabolism and transport in living systems are still not completely understood, despite their physiological importance. Specifically, little is known about the membrane transport of selenium from most of the selenium containing compounds. In the
Olena I Rzhepishevska et al.
Applied and environmental microbiology, 73(22), 7367-7372 (2007-09-18)
Acidithiobacillus caldus has been proposed to play a role in the oxidation of reduced inorganic sulfur compounds (RISCs) produced in industrial biomining of sulfidic minerals. Here, we describe the regulation of a new cluster containing the gene encoding tetrathionate hydrolase
Nandini Sarkar et al.
Biochimie, 93(5), 962-968 (2011-03-01)
Tissue deposition of fibrillar protein aggregates called amyloid is the root cause of several degenerative diseases. Thus identification of compounds which can prevent or reduce protein aggregation can serve as a potential therapeutic target. In the present study we have
Tat'yana I Bogdanova et al.
International journal of systematic and evolutionary microbiology, 56(Pt 5), 1039-1042 (2006-04-22)
A thermotolerant, Gram-positive, aerobic, endospore-forming, acidophilic bacterium (strain Kr1T) was isolated from the pulp of a gold-containing sulfide concentrate processed at 40 degrees C in a gold-recovery plant (Siberia). Cells of strain Kr1(T) were straight to slightly curved rods, 0.8-1.2
Sebastian E Winter et al.
Gut microbes, 2(1), 58-60 (2010-01-01)
Salmonella is a common cause of food poisoning. However, after ingestion the pathogen has to compete with resident microbes that already occupy the intestinal lumen (microbiota), which poses a challenge for Salmonella to successfully colonize this niche. Recent data show
Daniel Kupka et al.
Research in microbiology, 160(10), 767-774 (2009-09-29)
Mesophilic iron and sulfur-oxidizing acidophiles are readily found in acid mine drainage sites and bioleaching operations, but relatively little is known about their activities at suboptimal temperatures and in cold environments. The purpose of this work was to characterize the
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