Mono- and Stereopictres of 5.0 Angstrom coordination sphere of Arsenic atom in PDB 1j9b: Arsenate Reductase+0.4M Arsenite From E. Coli

Molybdenum cofactor is a cofactor required for the activity of enzymes such as sulfite oxidase, xanthine oxidoreductase, and aldehyde oxidase. It is a coordination complex formed between molybdopterin (which, despite the name, does not contain molybdenum) and an oxide of molybdenum. Molybdopterins, in turn, are synthesized from guanosine triphosphate. Molybdenum cofactor functions directly in ethylbenzene dehydrogenase, glyceraldehyde-3-phosphate ferredoxin oxidoreductase, and respiratory arsenate reductase. In animals and plants these enzymes use molybdenum bound at the active site in a tricyclic molybdenum cofactor. All molybdenum-using enzymes so far identified in nature use this cofactor The simplest structure of molybdopterin contains a pyranopterin coordinated to molybdenum. The pyranopterin structure is a fused ring system containing a pyran fused to pterin. In addition, the pyran ring is substituted with two thiols and an alkyl phosphate. In molybdopterin, the thiols coordinate to ...

Villadangos, A. F., K. Van Belle, K. Wahni, V. Tamu Dufe, S. Freitas, H. Nur, S. De Galan, J. A. Gil, J-F. Collet, L. M. Mateos, et al., Corynebacterium glutamicum survives arsenic stress with arsenate reductases coupled to two distinct redox mechanisms., Mol Microbiol, vol. 82, issue 4, pp. 998-1014, 2011 Nov. ...

Villadangos, A. F., K. Van Belle, K. Wahni, V. Tamu Dufe, S. Freitas, H. Nur, S. De Galan, J. A. Gil, J-F. Collet, L. M. Mateos, et al., Corynebacterium glutamicum survives arsenic stress with arsenate reductases coupled to two distinct redox mechanisms., Mol Microbiol, vol. 82, issue 4, pp. 998-1014, 2011 Nov. ...

Microbiome research encompasses sample types as diverse as the human gut, Antarctic soil, ocean water and acidic hot spring biofilms. These samples are challenging because they are difficult to lyse, with some microbes containing a tough extracellular matrix. Incomplete lysis of a microbial community results in an inaccurate representation of the microbial content of the sample. Additionally, PCR inhibitors present in these samples, especially humic acids, polysaccharides, polyphenolics, lipids and heavy metals, result in inaccurate quantitation of nucleic acids and may cause false negatives in qPCR. ...

Natural pollution of groundwater by arsenic adversely affects the health of tens of millions of people worldwide, with the deltaic aquifers of SE Asia being particularly polluted. The pollution is caused primarily by, or as a side reaction of, the microbial reduction of sedimentary Fe(III)-oxyhydroxides, but the organism(s) responsible for As release have not been isolated. Here we report the first isolation of a dissimilatory arsenate reducer from sediments of the Bengal Basin in West Bengal. The bacterium, here designated WB3, respires soluble arsenate and couples its reduction to the oxidation of acetate; WB3 is therefore implicated in the process of arsenic pollution of groundwater, which is largely by arsenite. The bacterium WB3 is also capable of reducing dissolved Fe(III) citrate, solid Fe(III)-oxyhydroxide, and elemental sulfur, using acetate as the electron donor. It is a member of the Desulfuromonas genus and possesses a dissimilatory arsenate reductase that was identified using ...

1JL3: Bacillus subtilis arsenate reductase is structurally and functionally similar to low molecular weight protein tyrosine phosphatases.

Close The Infona portal uses cookies, i.e. strings of text saved by a browser on the users device. The portal can access those files and use them to remember the users data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser. ...

The arsR-type HTH domain is a DNA-binding, winged helix-turn-helix (wHTH) domain present in transcription regulators of the arsR/smtB family, involved in stress-response to heavy metal ions. This family of prokaryotic metal-sensing transcription repressors is named after Escherichia coli arsR, an arsenic-responsive repressor of the ars operon for arsenate reductase and metal ion extrusion, and after Synechococcus PCC 7942 smtB, a Zn(II)-responsive repressor of the smtA gene for a Zn sequestering metallothionein [ (PUBMED:12829264) ]. ArsR/smtB-like repressors of metal resistance operons specifically bind to the operator/promoter and seem to dissociate from the DNA in the presence of metal ions, permitting transcription of proteins involved in metal-ions efflux and/or detoxification. The crystal structure of the cyanobacterial smtB shows a fold of five alpha-helices (H) and a pair of antiparallel beta-strands (B) in the topology H1-H2-H3-H4-B1-B2-H5. Helices 3 and 4 comprise the helix-turn-helix ...

The Mono Lake State Reserve, California wall mural by Alain Thomas will add a distinctive touch to any room. Choose from standard sizes or get a custom size to perfectly fit your wall.

A sample of unknown GS1, a probably amorphous Zn, Fe Arsenate. An attractive translucent green coloured sample with resinous lustre and conchoidal fracture.

Note: The information on this page has been researched and summarized from various sources by Mono Lake Committee staff and is not from the perspective of

p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class=publication>Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href=http://www.nrbook.com/b/bookcpdf.php>Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...

Business Directory for Ammonium Arsenate Suppliers in Mumbai - Get contact details of Ammonium Arsenate Manufacturers, Wholesale Ammonium Arsenate Exporters, Best Ammonium Arsenate Traders & Distributors Across the Mumbai.

November 19, 2020. Warning: this blog contains some hardcore plant science. Look away now if this is a bit much! This blog celebrates the publication in the Journal of Experimental Botany of a new paper about arsenate reductase in plants. Dr. Sina Fischer of the Future Food Beacon is the first author on the study and performed much of the work, assisted by a number of co-authors. including Dr Paulina Flis who leads Prof. Salts Ionomics Facility. Prof. David E. …. ...

Search Indian Sodium Arsenate Manufacturers and Suppliers Details - Contact to Sodium Arsenate Exporters in India, Sodium Arsenate Wholesalers, Sodium Arsenate Distributors and Traders from India.

We couldnt find a conversion between moles Sodium Arsenate and kilomol Do a quick conversion: 1 moles Sodium Arsenate = 1 kilomol using the online calculator for metric conversions.

SWISS-MODEL Repository entry for A0L1M4 (UBIE_SHESA), Ubiquinone/menaquinone biosynthesis C-methyltransferase UbiE. Shewanella sp (strain ANA-3)

Arsenic is a toxic metalloid which is widely distributed in nature. It is normally present as arsenate under oxic conditions while arsenite is predominant under reducing condition. The major discharges of arsenic in the environment are mainly due to natural sources such as aquifers and anthropogenic sources. It is known that arsenite salts are more toxic than arsenate as it binds with vicinal thiols in pyruvate dehydrogenase while arsenate inhibits the oxidative phosphorylation process. The common mechanisms for arsenic detoxification are uptaken by phosphate transporters, aquaglyceroporins, and active extrusion system and reduced by arsenate reductases via dissimilatory reduction mechanism. Some species of autotrophic and heterotrophic microorganisms use arsenic oxyanions for their regeneration of energy. Certain species of microorganisms are able to use arsenate as their nutrient in respiratory process. Detoxification operons are a common form of arsenic resistance in microorganisms. Hence, the use of

Volume 73, no. 16, p. 5130-5137, 2007. Page 5134: A miscalculation was made during the conversion of units for the measured N2O concentrations in sediment denitrification bioassays reported in Fig. 4B and the associated discussion in the text. The reported N2O production rates are too high by a factor of 1/0.028, or 36-fold, as they were not corrected for the headspace volume of the bioassay serum bottles (28 ml). The correct ranges of N2O production rates are 0.001 to 1.8 μmol cm−3 day−1 for Mono Lake samples and 0.01 to 0.5 μmol cm−3 day−1 for Searles Lake samples. Our observations regarding the effects of salinity on denitrification, as well as the other major implications of the study, however, are not affected by this correction.. ...

Arsenate minerals usually refer to the naturally occurring orthoarsenates, possessing the (AsO4)3− anion group and, more rarely, other arsenates with anions like AsO3(OH)2− (also written HAsO42−) (example: pharmacolite Ca(AsO3OH).2H2O) or (very rarely) [AsO2(OH)2]− (example: andyrobertsite). Arsenite minerals are much less common.[1] Both the Dana[2] and the Strunz[3] mineral classifications place the arsenates in with the phosphate minerals. Example arsenate minerals include: ...

Shop The CYMA MOSFET Enhanced 8mm Gearbox is a high performance and high quality release from CYMA which has been proven by their release in the popular rifles. Need to replace your gearbox or just looking for something new to upgrade your old AEG? Look no further than the CYMA 8mm Gearbox. Features: ... , Internal Parts, Gearbox, M4 / M16 Series

Raw Material India (RMI) is a new startup - an online platform Only For Industrial Raw Materials of all types. This is Indias First-Of-Its-Kind Exclusive B2B Raw Materials website.. ...

TRIVENI INTERCHEM PVT. LTD. - Exporter, Manufacturer, Distributor, Supplier, Trading Company of Chromated copper arsenate based in Vapi, India

ID A0KYP4_SHESA Unreviewed; 549 AA. AC A0KYP4; DT 12-DEC-2006, integrated into UniProtKB/TrEMBL. DT 12-DEC-2006, sequence version 1. DT 07-JUN-2017, entry version 59. DE SubName: Full=Pyridoxal-dependent decarboxylase {ECO:0000313,EMBL:ABK48913.1}; GN OrderedLocusNames=Shewana3_2686 {ECO:0000313,EMBL:ABK48913.1}; OS Shewanella sp. (strain ANA-3). OC Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales; OC Shewanellaceae; Shewanella. OX NCBI_TaxID=94122 {ECO:0000313,EMBL:ABK48913.1, ECO:0000313,Proteomes:UP000002589}; RN [1] {ECO:0000313,Proteomes:UP000002589} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ANA-3 {ECO:0000313,Proteomes:UP000002589}; RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., RA Pitluck S., Chertkov O., Brettin T., Bruce D., Han C., Tapia R., RA Gilna P., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., RA Kim E., Newman D., Salticov C., Konstantinidis K., Klappenback ...

Polyphysa peniculus growing in artificial seawater methylates arsenate to produce a dimethylarsenic derivative, probably dimethylarsinate. When L-methionine-methyl-d3 is added to the culture the CD3 label is incorporated intact in the dimethylarsenic compound to a considerable extent, indicating that S-adenosylmethionine, or some related sulphonium compound, is involved in the biological methylation. Conclusive evidence of the CD3 incorporation was provided by using a specially developed hydride generation-gas chromatography-mass spectrometry methodology.. ...

LEE VINING, Mono Co. - After Id managed to descend the steepest part of the 9,945-foot Tioga Pass, loosened fingers that had been cramped tightly around the steering wheel, and quit peering nervously at the yawning abyss on my right, I became aware of a mighty blue-green sweep of salty water before me. [...] several thousand feet above it, I could appreciate its lonely setting, a sharp contrast with the alpine lakes surrounded by meadows and forests that Id just left behind in Yosemite National Park. Besides water, it contains copious amounts of salts, detergents and baking soda. Years of court battles had persuaded the city fathers and mothers of perpetually thirsty Los Angeles to stop, after half a century, from diverting four of five streams that pour down the same slopes on which my elderly car now soared toward the shores of Mono Lake. After checking in at a surprisingly busy motel, grateful Id made reservations, I walked north a few doors to the headquarters of the Mono Lake Committee to

John, I cant tell you how inspired I am by your gallery - it is breathtaking in its originality, beauty and mood. What youve done here is captured a very, very special aspect of Mono Lake which few others have obtained. Your use of shooting into the light here is so effectively done in this gallery...your vision here is wonderfully refreshing. Who needs the sun when so much can be done in the twilight! Thank you for sharing ...

Company Name: American Security Resources Corp., Stock Symbol: ARSC, Industry: Alternative Energy, Total Posts: 51817, Last Post: 1/13/2018 1:39:05 PM

Olivenite Group. Structurally distinct, intermediate member of the solid solution series between Olivenite and Adamite with a Zn:Cu ratio of (ideally) ...

arsenate) how to start binary options trading - how to start binary options trading, binary option system, binary options brokers not in cyprus, binary options value chart

In molecular biology, the ars operon is an operon found in several bacterial taxon. It is required for the detoxification of arsenate, arsenite, and antimonite. This system transports arsenite and antimonite out of the cell. The pump is composed of two polypeptides, the products of the arsA and arsB genes. This two-subunit enzyme produces resistance to arsenite and antimonite. Arsenate, however, must first be reduced to arsenite before it is extruded. A third gene, arsC, expands the substrate specificity to allow for arsenate pumping and resistance. ArsC is an approximately 150-residue arsenate reductase that uses reduced glutathione (GSH) to convert arsenate to arsenite with a redox active cysteine residue in the active site. ArsC forms an active quaternary complex with GSH, arsenate, and glutaredoxin 1 (Grx1). The three ligands must be present simultaneously for reduction to occur. ArsA and ArsB form an anion-translocating ATPase. The ArsB protein is distinguished by its overall hydrophobic ...

Mesoporous pellet adsorbent developed from mixing at an appropriate ratio of natural clay, iron oxide, iron powder, and rice bran was used to investigate the optimization process of batch adsorption parameters for treating aqueous solution coexisting with arsenate and arsenite. Central composite design under response surface methodology was applied for optimizing and observing both individual and interactive effects of four main influential adsorption factors such as contact time (24-72 h), initial solution pH (3-11), adsorbent dosage (0-20 g/L) and initial adsorbate concentration (0.25-4.25 mg/L). Analysis of variance suggested that experimental data were better fitted by the quadratic model with the values of regression coefficient and adjusted regression coefficient higher than 95%. The model accuracy was supported by the correlation plot of actual and predicted adsorption efficiency data and the residual plots. The Pareto analysis suggested that initial solution pH, initial adsorbate concentration,

Concurrent occurrence of chromium (Cr), copper (Cu) and arsenic (As) from chromated copper arsenate (CCA) wood preservative in aquatic ecosystems demands that their joint-actions in eliciting toxic effects be assessed for adequate understanding of the health risk they may pose to biota. Clarias gariepinus was exposed to As2O3 , CrO3 and CuO and their composite mixtures (1:1

TY - JOUR. T1 - Increasing the arsenate adsorption capacity of neutralized red mud (Bauxsol). AU - Genc Fuhrman, Hülya. AU - Tjell, Jens Christian. AU - McConchie, D.. PY - 2004. Y1 - 2004. M3 - Journal article. VL - 271. SP - 313. EP - 320. JO - Journal of Colloid and Interface Science. JF - Journal of Colloid and Interface Science. SN - 0021-9797. ER - ...

Scientists have found a microbe in Mono Lake, California, that uses arsenic as a fundamental building block, changing the definition of life as we know it and the search for extraterrestrial life.

Scientists at the Harvard Smithsonian centre for Astrophysics say that have isolated arsenic tolerant bacteria from mono lake an ancient alkaline lake in California. They were fed arsenic instead of phosphorous an element essential for life and they gradually replaced the phosphorous with arsenic atoms. This, say scientists, will change the way we view adaptability of life forms.

Collection of images from trips to California. Highlights include Bodie State Historic Park, Mono Lake Tufa State Reserve, Lassen Volcanic National Park and Yosemite National Park.

LEBANON, Ohio (AP) - A 5-year-old Ohio boy with cerebral palsy became wedged between furniture and suffocated to death while playing at his …

We report the isolation of a pinnacle-forming cyanobacterium isolated from a microbial mat covering the sediment surface at Little Salt Spring-a flooded sinkhole in Florida with a perennially microoxic and sulfidic water column. The draft genome of the isolate encodes all of the enzymatic machinery necessary for both oxygenic and anoxygenic photosynthesis, as well as genes for methylating hopanoids at the C-2 position. The physiological response of the isolate to H2S is complex: (i) no induction time is necessary for anoxygenic photosynthesis; (ii) rates of anoxygenic photosynthesis are regulated by both H2S and irradiance; (iii) O2 production is inhibited by H2S concentrations as low as 1 μM and the recovery rate of oxygenic photosynthesis is dependent on irradiance; (iv) under the optimal light conditions for oxygenic photosynthesis, rates of anoxygenic photosynthesis are nearly double those of oxygenic photosynthesis ...

Pueraria tuberose Linn. is an inexpensive and efficient source to provide all the required nutrients and medicinal benefits for a healthy and rejuvenating body. The present investigation has been undertaken to evaluate the role of Pueraria tuberosa Linn. in modifying the sodium arsenate induced biochemical alterations in albino rats. Administration of sodium arsenate in rats induces oxidative stress, which leads to the generation of free radicals in the body. These free radicals interact with tissue leading to tissue damage i.e, kidney damage. Animals were divided into 6 groups, Group I (control group) rats were treated with normal saline (1mg/kg), Group II ( Positive Control) rats were treated with sodium arsenate (1mg/kg).Group III rats were treated with sodium arsenate (1mg/kg) and Vitamin E (100 mg/kg).Group IV rats were treated with sodium arsenate (1mg/kg) and Pueraria tuberosa linn. extract (50 mg/kg), Group V rats were treated with sodium arsenate (1mg/kg) and Pueraria tuberosa linn.

using it instead of phosphorus in their biochemistry. To determine this, Dr. Wolfe-Simon took samples of the microbes, adding more and more arsenic while decreasing the amount of phosphorus in their environment to essentially zero. This would kill almost everything known to man, yet these little critters thrived. Even weirder, the bacteria were able to survive when either the phosphorus or the arsenic was reduced, but not both. So somehow, its able to use both of these elements as needed to survive.. Amazingly, using radioisotope-tagged molecules containing arsenic, they were able to find that the microbes incorporated the arsenic into their very DNA! Its hard to stress how shocking this is; as I understand it, saying something like that to a microbiologist without evidence wouldve had them slowly backing away from you and looking for weapons or an escape route.. That is seriously freaky. So what does this mean in the scale of things?. For one thing, it means that life, as Jeff Goldblum so ...

Founded in 2007, Jiangxi Qianhua Industry Co., Ltd. is a specialized production and trade enterprise. Now, we are mainly engaged in the research and manufacturing of fine chemicals.

How was Mono Lake formed? Mono Lake Basin was formed by the same geologic processes that shaped the Nevada and Eastern Sierra landscape over the past

The article explains why it was that standards of proof that were acceptable to different degrees to geologists, physicists and biologists were unacceptable to chemists. The answer pertains to what we call background knowledge. In this case, chemists were compelled to ask how DNA with arsenic replacing phosphorus in its backbone could possibly be stable given everything they knew about the instability of arsenate esters. The latter had been studied for several decades, and while arsenic DNA itself had not been synthesized before, simpler arsenate esters were known to be highly unstable in water. The chemists were quite confident in extrapolating from these simple cases to questioning the stable existence of arsenic DNA; if arsenic DNA indeed were so stable, then almost everything they had known about arsenate esters for fifty years would have been wrong, a possibility that was highly unlikely. Thus for chemists, arsenic DNA was an extraordinary claim. And as Carl Sagan said, they needed to see ...

The befitting capping capabilities of AsO43− provide a stable Cu2O nanocatalyst from a galvanic reaction between a Cu(ii) precursor salt and As(0) nanoparticles. This stable Cu2O hydrosol appears to be a suitable catalyst for the one-electron transfer reversible redox reaction between Eosin Y and NaBH4. The

Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on small chemical compounds.

The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format. By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. To select a subset of the search results, click Selective Export button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export. After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format. ...

Kasalicky, V., Y. Zeng, K. Piwosz, K. Šimek, H. Kratochvilová, and M. Koblizek. 2018. Aerobic anoxygenic photosynthesis is commonly present within the genus Limnohabitans. Applied and Environmental Microbiology 84: e02116-17 ...

Tip - The easiest way to check the shipping cost for what you want to buy is put all of the stuff you want in to your basket. Then in your basket under the sub total there is a link for Estimate Shipping & Tax click this and fill in the details and it will tell you the shipping cost and if you qualify for free shipping. ...