No data available that match "chromatium"


Pre-steady-state kinetics of the reactions of [NiFe]-hydrogenase from Chromatium vinosum with H2 and CO. (1/157)

Results are presented of the first rapid-mixing/rapid-freezing studies with a [NiFe]-hydrogenase. The enzyme from Chromatium vinosum was used. In particular the reactions of active enzyme with H2 and CO were monitored. The conversion from fully reduced, active hydrogenase (Nia-SR state) to the Nia-C* state was completed in less than 8 ms, a rate consistent with the H2-evolution activity of the enzyme. The reaction of CO with fully reduced enzyme was followed from 8 to 200 ms. The Nia-SR state did not react with CO. It was discovered, contrary to expectations, that the Nia-C* state did not react with CO when reactions were performed in the dark. When H2 was replaced by CO, a Nia-C* EPR signal appeared within 11 ms; this was also the case when H2 was replaced by Ar. With CO, however, the Nia-C* state decayed within 40 ms, due to the generation of the Nia-S.CO state (the EPR-silent state of the enzyme with bound CO). The Nia-C* state, induced after 11 ms by replacing H2 by CO in the dark, could be converted, in the frozen enzyme, into the EPR-detectable state with CO bound to nickel (Nia*.CO) by illumination at 30 K (evoking the Nia-L* state), followed by dark adaptation at 200 K. This can be explained by assuming that the Nia-C* state represents a formally trivalent state of nickel, which is unable to bind CO, whereas nickel in the Nia-L* and the Nia*.CO states is formally monovalent.  (+info)

Kinetics of photoacclimation in cultures of Chromatium vinosum DSM 185 during shifts in light irradiance. (2/157)

Continuous cultures of Chromatium vinosum DSM 185 were shifted from a high to a low irradiance (67 to 4 microE m(-2) s(-1)) and vice versa (4 to 67 microE m(-2) s(-1)). The kinetics of photoacclimation of the cultures were analysed during these transitions until steady state was reached. When irradiance was shifted from 4 to 67 microE m(-2) s(-1), bacteriochlorophyll synthesis halted for 4 h. During this period, pigments were progressively diluted in the newly formed biomass, resulting in a lower specific pigment content. The specific growth rate of the organisms did not change immediately after the shift, but rather underwent a gradual increase during the following 10 h. This transition was accompanied by a transient increase in the levels of glycogen, indicating that CO2 fixation rates increased immediately after the shift, and that unused photosynthate was stored as glycogen. The shift from a high to a low irradiance was characterized by an immediate drop in the specific growth rate to virtually zero, and by comparatively sharp decreases in the specific rates of sulfur and sulfide oxidation and in the specific rate of glycogen accumulation. The specific content of bacteriochlorophyll a increased during the first 10 h. During the same period the specific content of glycogen decreased.  (+info)

Investigation of the role of a surface patch in the self-association of Chromatium vinosum high potential iron-sulfur protein. (3/157)

The role of a flattened, relatively hydrophobic surface patch in the self-association of Chromatium vinosum HiPIP was assessed by substituting phenylalanine 48 with lysine. The reduction potential of the F48K variant was 26 mV higher than that of the wild-type (WT) recombinant (rc) HiPIP, consistent with the introduction of a positive charge close to the cluster. Nuclear magnetic resonance spectroscopy (NMR) revealed that the electronic structure of the oxidized cluster in these two proteins is very similar at 295 K. In contrast, the electron transfer self-exchange rate constant of F48K was at least 15-fold lower than that of the WT rcHiPIP, indicating that the introduction of a positive charge at position 48 diminishes self-association of the HiPIP in solution. Moreover, the substitution at position 48 abolished the fine structure in the g(z) region of the electron paramagnetic resonance (EPR) spectrum of oxidized C. vinosum rcHiPIP recorded in the presence of 1 M sodium chloride. These results support the hypothesis that the flattened, relatively hydrophobic patch mediates interaction between two molecules of HiPIP and that freezing-induced dimerization of the HiPIP mediated by this patch is responsible for the unusual fine structure observed in the EPR spectrum of the oxidized C. vinosum HiPIP.  (+info)

NH---S hydrogen bonds in Peptococcus aerogenes ferredoxin, Clostridium pasteurianum rubredoxin, and Chromatium high potential iron protein. (4/157)

Results from refinement of the crystal structures of P. aerogenes ferredoxin and C. pasteurianum rubredoxin determined by x-ray diffraction show that there are 15-18 NH---S bonds in the former and six in the latter with lengths in the range 3.1-3.9 A. Earlier tritium exchange experiments are consistent with the presence of these hydrogen bonds in the ferredoxin structure and show that more peptide hydrogen atoms are available for exchange in apoferredoxin than in intact ferredoxin. Four types of NH---S bonds are observed and two of these are geometrically similar to the two types of 3(10) NH---O bonds. The existence of more NH---S bonds in ferredoxin than in high potential iron protein suggests why the -2 form of the Fe4S4 cluster is preferred in ferredoxin over the -1 form found in high potential iron protein. From comparison of Cys-X-Y-Cys sequences in rubredoxin, ferredoxin, and high potential iron protein we suggest that two Cys-X-Y-Cys-Z sequences, where Z may have conformation angles similar to glycine, are required to make a one-iron cluster, no more than one Cys-X-Y-Cys-Z-Gly sequence is required to form a Fe2S2 ferredoxin, and a Cys-X-Y-Cys-Gly sequence where Y has a conformation such that the cysteines bond to different iron atoms is necessary to form the tetrameric cluster.  (+info)

The role of structural intersubunit microheterogeneity in the regulation of the activity in hysteresis of ribulose 1, 5-bisphosphate carboxylase/oxygenase. (5/157)

Many enzymes are composed of subunits with the identical primary structure. It has been believed that the protein structure of these subunits is the same. Ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO) comprises eight large subunits with the identical amino acid sequence and eight small subunits. Rotation of the side chains of the lysine residues, Lys-21 and Lys-305, in each of the eight large subunits in spinach RuBisCO in two ways produces microheterogeneity among the subunits. These structures are stabilized through hydrogen bonds by water molecules incorporated into the large subunits. This may cause different effects upon catalysis and a hysteretic, time-dependent decrease in activity in spinach RuBisCO. Changing the amino acid residues corresponding to Lys-21 and Lys-305 in non-hysteretic Chromatium vinosum RuBisCO to lysine induces hysteresis and increases the catalytic activity from 8.8 to 15.8 per site per second. This rate is approximately five times higher than that of the higher-plant enzyme.  (+info)

Energy transfer and charge separation in the purple non-sulfur bacterium Roseospirillum parvum. (6/157)

The antenna reaction centre system of the recently described purple non-sulfur bacterium Roseospirillum parvum strain 930I was studied with various spectroscopic techniques. The bacterium contains bacteriochlorophyll (BChl) a, 20% of which was esterified with tetrahydrogeranylgeraniol. In the near-infrared, the antenna showed absorption bands at 805 and 909 nm (929 nm at 6 K). Fluorescence bands were located at 925 and 954 nm, at 300 and 6 K, respectively. Fluorescence excitation spectra and time resolved picosecond absorbance difference spectroscopy showed a nearly 100% efficient energy transfer from BChl 805 to BChl 909, with a time constant of only 2.6 ps. This and other evidence indicate that both types of BChl belong to a single LH1 complex. Flash induced difference spectra show that the primary electron donor absorbs at 886 nm, i.e. at 285 cm(-1) higher energy than the long wavelength antenna band. Nevertheless, the time constant for trapping in the reaction centre was the same as for almost all other purple bacteria: 55+/-5 ps. The shape as well as the amplitude of the absorbance difference spectrum of the excited antenna indicated exciton interaction and delocalisation of the excited state over the BChl 909 ring, whereas BChl 805 appeared to have a monomeric nature.  (+info)

Characterization of clutathione amide reductase from Chromatium gracile. Identification of a novel thiol peroxidase (Prx/Grx) fueled by glutathione amide redox cycling. (7/157)

Among the Chromatiaceae, the glutathione derivative gamma-l-glutamyl-l-cysteinylglycine amide, or glutathione amide, was reported to be present in facultative aerobic as well as in strictly anaerobic species. The gene (garB) encoding the central enzyme in glutathione amide cycling, glutathione amide reductase (GAR), has been isolated from Chromatium gracile, and its genomic organization has been examined. The garB gene is immediately preceded by an open reading frame encoding a novel 27.5-kDa chimeric enzyme composed of one N-terminal peroxiredoxin-like domain followed by a glutaredoxin-like C terminus. The 27.5-kDa enzyme was established in vitro to be a glutathione amide-dependent peroxidase, being the first example of a prokaryotic low molecular mass thiol-dependent peroxidase. Amino acid sequence alignment of GAR with the functionally homologous glutathione and trypanothione reductases emphasizes the conservation of the catalytically important redox-active disulfide and of regions involved in binding the FAD prosthetic group and the substrates glutathione amide disulfide and NADH. By establishing Michaelis constants of 97 and 13.2 microm for glutathione amide disulfide and NADH, respectively (in contrast to K(m) values of 6.9 mm for glutathione disulfide and 1.98 mm for NADPH), the exclusive substrate specificities of GAR have been documented. Specificity for the amidated disulfide cofactor partly can be explained by the substitution of Arg-37, shown by x-ray crystallographic data of the human glutathione reductase to hydrogen-bond one of the glutathione glycyl carboxylates, by the negatively charged Glu-21. On the other hand, the preference for the unusual electron donor, to some extent, has to rely on the substitution of the basic residues Arg-218, His-219, and Arg-224, which have been shown to interact in the human enzyme with the NADPH 2'-phosphate group, by Leu-197, Glu-198, and Phe-203. We suggest GAR to be the newest member of the class I flavoprotein disulfide reductase family of oxidoreductases.  (+info)

Crystallographic structure refinement of Chromatium high potential iron protein at two Angstroms resolution. (8/157)

The structure of Chromatium high potential iron protein (HiPIP) has been refined by semiautomatic Fo-Fc (observed minus calculated structure amplitude Fourier methods to a convential R index, R=sum of the absolute value of Fo-Fc divided by the sum of Fo, of 24.7% for a model in which bond distances and angles are constrained to standard values. Bond length and angle constraints were applied only intermittenly during the computations. At a late stage of the refinement, atomic parameters for only the Fe4S4 cluster plus the 4 associated cystein S-gamma atoms were adjusted by least squares methods and kept fixed during the rest of the refinement. The refined model consists of 625 of the 632 nonhydrogen atoms in the protein plus 75 water molecules. Seven side chain atoms could not be located in the final electron density map. A computer program rather than visual inspection was used wherever possible in the refinement: for locating water molecules, for removing water molecules that too closely approach other atoms, for deleting atoms that lay in regions of low electron density, and for evaluating the progress of refinement. Fo-Fc Fourier refinement is sufficiently economical to be applied routinely in protein crystal structure determinations. The complete HiPIP refinement required approximately 12 hours of CDC 3600 computer time and cost less than $3000 starting from a "trial structure," based upon multipe isomorphoous replacement phases, which gave an R of 43%...  (+info)

*Sulfide-cytochrome-c reductase (flavocytochrome c)

Fukumori, Y.; Yamanaka, T. (1979). "Flavocytochrome c of Chromatium vinosum. Some enzymatic properties and subunit structure". ... "Partial purification and characterization of two soluble c-type cytochromes from Chromatium vinosum". Arch. Biochem. Biophys. ...

*Glutathione amide-dependent peroxidase

"Characterization of glutathione amide reductase from Chromatium gracile. Identification of a novel thiol peroxidase (Prx/Grx) ...

*Glutathione amide reductase

"Characterization of glutathione amide reductase from Chromatium gracile. Identification of a novel thiol peroxidase (Prx/Grx) ... "Crystallization and preliminary X-ray crystallographic analysis of glutathione amide reductase from Chromatium gracile". Acta ...

*Phototroph

Examples of phototroph organims: Rhodobacter capsulatus, Chromatium, Chlorobium etc. Originally used with a different meaning, ...

*Vampirococcus

As a bacterium, Chromatium is much larger than Vampirococcus. The benefit of preying on larger microbes is the sheer abundance ... Because Chromatium is a primary producer as a phototroph, it has been suggested that Vampirococcus could be considered a ... It should be noted that Vampirococcus does not use Chromatium's cellular machinery to reproduce like a virus. It only uses the ... Once the prokaryote has used all the prey's nutrients and reproduced, Vampirococcus leaves the Chromatium cell dead. All that ...

*Sulfide:quinone reductase

"Sulfide oxidation in the phototrophic sulfur bacterium Chromatium vinosum". Arch. Microbiol. 170 (1): 59-68. doi:10.1007/ ...

*Cytochrome c family

The Chromatium vinosum cytC' exhibits dimer dissociation upon ligand binding. Class III comprises the low redox potential ...

*Bacteria

Brune DC (1995). "Isolation and characterization of sulfur globule proteins from Chromatium vinosum and Thiocapsa ...

*Sippewissett Microbial Mat

Amoebobacter, Thiocapsa, Chromatium, and Thiocystis are among the species of purple sulfur bacteria identified. Purple sulfur ...

*Vampirovibrio chlorellavorus

... chlorellavorus leaves behind only the cell wall and cytoplasmic membrane of Chromatium along with a few intracytoplasmic ... "Electron Microscope Study of the Interaction of Epibiontic Bacteria with Chromatium minus in Natural Habitats."Microbial ...

*Teófilo Herrera Suárez

He also described several new bacterial species: Chromatium ruizi, Agrobacterium azotophilum, Achromobacter pozolis, and ...

*Gammaproteobacteria

Members of Chromatium are photosynthetic and oxidize hydrogen sulfide instead of water, producing sulfur as a waste product. ...

*Lake Cadagno

Anaerobic phototrophic bacteria - among them Chromatium okenii-thrive between the two layers where they find the ideal ...

*High potential iron-sulfur protein

... such as Chromatium, and Ectothiorhodospira. HiPIPs are periplasmic proteins in photosynthetic bacteria. They play a role of ...

*Flavocytochrome c sulfide dehydrogenase

... c sulfide dehydrogenase is an enzyme found in sulfur-oxidising bacteria such as the purple phototrophic bacteria Chromatium ...

*Photosynthes - Alemannische Wikipedia

Schwäfelpurpurbakterie (z. B. Chromatium, Ectothiorhodospira) oxidiere oderzue H2S zue Schwäfel, wu intra- oder extrazällulär ...

*Winogradsky column

These two gradients promote the growth of different microorganisms such as Clostridium, Desulfovibrio, Chlorobium, Chromatium, ...

*List of MeSH codes (B03)

Chromatium MeSH B03.440.425.410.350 --- Desulfovibrio MeSH B03.440.425.410.350.040 --- Desulfovibrio africanus MeSH B03.440. ... Chromatium MeSH B03.660.250.110.400 --- Halothiobacillus MeSH B03.660.250.110.750 --- Thiocapsa MeSH B03.660.250.110.750.660 ...

*Chromatium

... is a genus of photoautotrophic Gram-negative bacteria which are found in water. The cells are straight rod-shaped or ... Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria Chromatium J.P. Euzéby: List of ...

*Chromatium okenii

... is a Gram-negative bacterium found in water. It belongs to the Purple sulfur bacteria. These bacteria are ... Chromatium okenii is anaerobic and the cells are slightly curved or straight rods. George M. Garrity: Bergey's Manual of ... Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria Chromatium J.P. Euzéby: List of ...

*Chromatium, ang malayang ensiklopedya

Ang Chromatium (Bigkas: Chro.ma'ti.um)(Griyego, chromatium, kulay) ay isang uri ng bakterya na hugis ovoid, mani, o isang hugis ... Chromatium. Halochromatium. Isochromatium. Lamprobacter. Lamprocystis. Marichromatium. Nitrosococcus. Pfennigia. ... Kinuha mula sa "https://tl.wikipedia.org/w/index.php?title=Chromatium&oldid=1440890" ...
1NEH: Three-dimensional solution structure of the oxidized high potential iron-sulfur protein from Chromatium vinosum through NMR. Comparative analysis with the solution structure of the reduced species.
1BLU: Crystal structure of the 2[4Fe-4S] ferredoxin from Chromatium vinosum: evolutionary and mechanistic inferences for [3/4Fe-4S] ferredoxins.
This report is based on data from 1,574 high-potential employees in Canada. Research suggests that although Canada has seen progress in the experiences of women in the workforce, there is still much room for improvement -- and this improvement is a business imperative. The Consider This sidebars present findings as well as questions that are intended to deepen the conversation about the advancement of high-potential employees The questions posed throughout this report incorporate insights gained from a panel of thought leaders from the academic, public, and private spheres in Canada and convened by Catalyst to get reactions to the reports findings. The goal in including these thought leaders perspectives is to further stimulate discussion about how organizations can strategically manage high-potential talent.
Introductory report: distribution and physiological role of hydrogenases in microorganisms. Characterization of iron-sulphur centres by EPR spectroscopy: comparison with model systems. Hydrogenase in strictly anaerobic bacteria. Structure and function of two hydrogenases from the dinitrogen-fixing bacterium Clostridium pasteurianum. Activity, acceptor specificity and function of hydrogenase in Methanobacterium thermoautotrophicum. Characterization of the periplasmic hydrogenase from Desulfovibrio gigas. Properties of hydrogenase from particulate fraction of Desulfovibrio vulgaris. Properties of hydrogenases from the anaerobic bacteria Megasphera elsdenii and Desulfovibrio vulgaris. Hydrogenase in anaerobic phototrophic bacteria. Nature of the iron sulfur core and stability of chromatium hydrogenase. Purification and some properties of the soluble part of hydrogenase from Chromatium vinosum. Physical and catalytic properties of the hydrogenase of Rhodospirillum rubrum. Comparison of properties ...
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I Norra Östersjöns vattendistrikt undersöktes år 2011 kiselalger på 58 vattendragslokaler, fördelade på följande län: Stockholm (20 st.), Uppsala (9 st.), Södermanland (13 st.) och Västmanland (16 st.). I denna rapport redovisas resultaten från Stockholms län.. Statusklassningen av provtagningslokalerna gjordes med hjälp av kiselalgsindexet IPS, som visar graden av påverkan av näringsämnen och lättnedbrytbar organisk förorening i ett vattendrag. Som stöd till detta index har även andelarna näringskrävande (TDI) och föroreningstoleranta (%PT) kiselalger beaktats.. I Stockholms län uppnådde bara en lokal, AB17 Åkersströmmen-Holmbroån, klass 1 eller hög status. Lokalen hade dock låg diversitet på grund av ensidig dominans av artgruppen Achnanthidium minutissimum.. Åtta lokaler i länet bedömdes tillhöra klass 2, god status. Av de som befann sig i klassens nedre, d.v.s. sämre, del kan framför allt lokalerna AB20 Ullnaån, AB10 Märstaån och AB12 ...
Corynebacterium minutissimum is a species of Corynebacterium associated with erythrasma, a type of skin rash. It can be distinguished from similar-appearing rashes by exposing the area to the light of a Woods lamp; C. minutissimum produces porphyrins that fluoresce coral-red. Dalal A, Likhi R (January 2008). "Corynebacterium minutissimum bacteremia and meningitis: a case report and review of literature". J. Infect. 56 (1): 77-9. doi:10.1016/j.jinf.2007.10.006. PMID 18036665. Habif, Thomas R. Clinical Dermatology (4th ed.). Mosby. p. 419. ISBN 0-323-01319-8. Type strain of Corynebacterium minutissimum at BacDive - the Bacterial Diversity Metadatabase Biology ...
This study was conducted to compare the effects of foliar spray and rhizosphere irrigation with purple phototrophic bacteria (PPB) on growth and stevioside (ST) yield of Stevia. rebaudiana. The S. rebaudiana plants were treated by foliar spray, rhizosphere irrigation, and spray plus irrigation with PPB for 10 days, respectively. All treatments enhanced growth of S. rebaudiana, and the foliar method was more efficient than irrigation. Spraying combined with irrigation increased the ST yield plant -1 by 69.2% as compared to the control. The soil dehydrogenase activity, S. rebaudiana shoot biomass, chlorophyll content in new leaves, and soluble sugar in old leaves were affected significantly by S+I treatment, too. The PPB probably works in the rhizosphere by activating the metabolic activity of soil bacteria, and on leaves by excreting phytohormones or enhancing the activity of phyllosphere microorganisms.
Corynebacterium minutissimum: …and attributed to the bacterium Corynebacterium minutissimum. The lesions are generally seen on the inner sides of the thighs, in the scrotum, in the toe webs, and in the armpits. Erythrasma is more likely to occur in a warm climate. It is usually effectively treated with broad-spectrum antibiotics, but (on…
Corynebacterium minutissimum symptoms, causes, diagnosis, and treatment information for Corynebacterium minutissimum (Erythrasma) with alternative diagnoses, full-text book chapters, misdiagnosis, research treatments, prevention, and prognosis.
As we can observed, the areas are more distinct than the previous time we saw the column As noted, at the bottom we can still notice a dark area due to anaerobic microorganisms and at the top we can also notice a green area due to aerobic microorganisms.The black coloured area at the bottom of the column is due to the presence of iron sulfide which degrades organic matter thus we can notice that black colour . In addition, a small pick coloured area can be observed in the middle region of the column and that is due to a substance produced by purple sulfur bacteria which are responsible for that pink colour. ...
Lineage: cellular organisms; Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; Chromatiaceae; Nitrosococcus; Nitrosococcus ...
naproxeno ratiopharm 500 mg comprimidos recubiertos efg prospecto With few high-potential replacements in the system this season, the Yankees have mixed and matched to find help. They have used 50 players this season, tied with the Cubs for most in the majors and five more than they used all of last year. They have used 31 position players, most in the majors, including gone-if-you-blinked players Ben Francisco, Reid Brignac and Travis Ishikawa ...
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Phototrophic Fe(II)-oxidizing bacteria couple the oxidation of ferrous iron [Fe(II)] to reductive CO2 fixation by using light energy. Rhodopseudomonas palustris TIE-1 has a three-gene operon, designated the pio operon (for phototrophic iron oxidation), that is necessary for phototrophic Fe(II) oxidation. The first gene in the operon, pioA, encodes a c-type cytochrome that is upregulated under Fe(II)-grown conditions. PioA contains a signal sequence and shares homology with MtrA, a decaheme c-type cytochrome from Shewanella oneidensis MR-1 (TC# 5.B.5.1.1). The second gene, pioB, encodes an outer membrane β-barrel protein, a homologue of MtrB from S. oneidensis MR-1. The third gene, pioC, encodes a high potential iron sulfur protein (HiPIP) with a twin-arginine translocation (Tat) signal sequence and is similar to the Fe(II) oxidoreductase (Iro) from Acidithiobacillus ferrooxidans. Like PioA, PioB and PioC appear to be secreted proteins. Deletion of the pio operon results in loss of Fe(II) ...
Résumé : Engineering photosynthetic bacteria to utilize a heterologous reaction center (RC) containing a different photo-pigment could improve solar energy conversion efficiency by allowing the cell to absorb a broader range of the solar spectrum. One promising candidate is the homodimeric Type I RC from Heliobacterium modesticaldum (HbRC). It is the simplest known RC and has the benefit of using Bchl g, which absorbs in the near-infrared region of the spectrum. The purple phototrophic bacterium Rhodobacter (Rba.) sphaeroides was chosen as the platform into which the HbRC is introduced. However, to assemble a functional HbRC, engineered production of bacteriochlorophyll g (BChl g), must first be achieved. BChl g and BChl b are two chlorophyll (Chl) derivatives that contain an ethylidene substituent on ring B and share very similar biosynthetic pathways. Using the background strain Rba. sphaeroides producing BChl b rather than the native BChl a, we were able to re-direct the biosynthesis of ...
When driving potential is in great need inside a vessel to attain cathodic protection, High Potential Magnesium Vessel Anodes should be considered. High potential Magnesium anodes are most commonly used in soil based application; however, when an aqueous application requires high driving potential and an impressed current option is not economical, high potential Magnesium anodes are the best option. High potential Magnesium anodes have a driving potential of -1.75V CSE, compared to H-1A Magnesiums -1.55V CSE, Zincs -1.10V CSE or Aluminums -1.05V CSE. Corrpro provides the high potential anodes in a 3" diameter by 22" length or 3" diameter by 30" length.. Both the 3"x22" and 3"x30" anodes come with a 5/8" N/F/ threaded male end and female end. By going with this design option it gives the user easy threaded installation onto a bolt or through a hole, while also providing the option to thread multiple anodes together when applications require more surface area or weight. A common mounting option ...
Looking for Amoebobacter? Find out information about Amoebobacter. A genus of bacteria in the family Chromatiaceae; cells are spherical and nonmotile, have gas vacuoles, and contain bacteriochlorophyll a on vesicular... Explanation of Amoebobacter
Christopher D. Laughrey; High-potential gas production and fracture-controlled porosity in Upper Devonian Kane "sand," central-western Pennsylvania. AAPG Bulletin ; 66 (4): 477-482. doi: Download citation file:. ...
A shaped mass resorbable in the body, comprises collagen and a bioresorbable binding agent for collagen, the binding agent being selected, e.g., from polymers of C2-16 α-hydroxyalkanoic acids, polymers of natural amino acids, hydrolyzed collagen or hydrolyzed elastin.
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TY - JOUR. T1 - Carotenoid excited-state properties in photosynthetic purple bacterial reaction centers. T2 - Effects of the protein environment. AU - Pan, Jie. AU - Lin, Su. AU - Allen, James. AU - Williams, Joann. AU - Frank, Harry A.. AU - Woodbury, Neal. PY - 2011/6/2. Y1 - 2011/6/2. N2 - Carotenoid excited-state properties are characterized and compared in reaction centers (RCs) of wild-type (WT) Rhodobacter (Rb.) sphaeroides, and a mutant VR(L157), in which the near-infrared absorbance band associated with the primary electron donor, P, is missing. Energy transfer from the carotenoid (spheroidenone) S2 and relaxed S1 excited states to an adjacent monomeric-bacteriochlorophyll is unchanged between WT and the mutant RC samples. However, two other excited states, including a vibrationally hot S1 state and a state referred to as S*, have distinct properties in the two RCs. The lifetime of the hot S1 state is significantly shortened in the P-less mutant compared to WT RCs (450 fs vs 800 fs, ...
From genomic libraries of purple sulphur bacteria, fragments were cloned that encoded for proteins involved in the synthesis of poly(3-hydroxyalkanoic acids), PHA. A 12.5- and a 15.0- plus a 15.6-kbp
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
ID G2E4Q3_9GAMM Unreviewed; 601 AA. AC G2E4Q3; DT 16-NOV-2011, integrated into UniProtKB/TrEMBL. DT 16-NOV-2011, sequence version 1. DT 25-OCT-2017, entry version 24. DE RecName: Full=V-type ATP synthase subunit I {ECO:0000256,RuleBase:RU361189}; GN ORFNames=ThidrDRAFT_3266 {ECO:0000313,EMBL:EGV29529.1}; OS Thiorhodococcus drewsii AZ1. OC Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; OC Chromatiaceae; Thiorhodococcus. OX NCBI_TaxID=765913 {ECO:0000313,EMBL:EGV29529.1, ECO:0000313,Proteomes:UP000004200}; RN [1] {ECO:0000313,EMBL:EGV29529.1, ECO:0000313,Proteomes:UP000004200} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=AZ1 {ECO:0000313,EMBL:EGV29529.1, RC ECO:0000313,Proteomes:UP000004200}; RG US DOE Joint Genome Institute (JGI-PGF); RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S., RA Peters L., Land M.L., Hauser L., Vogl K., Liu Z., Imhoff J., Thiel V., RA Frigaard N.-U., Bryant D.A., Woyke T.J.; RT "The draft genome of Thiorhodococcus drewsii ...
By Margery Weinstein When Medtronic, Inc., a Minneapolis-based provider of medical technology, needed a way to give high-potential employees a sense of teamwork under pressure, it turned to simulation technology. The company incorporated a team-based leadership simulation from Enspire Learning into its Emerging Leader Program (ELP) that creates insights on personal leadership styles. It also allows emerging leaders to practice cross-functional teamwork that deals with ambiguity under time pressure, communication across the enterprise, and making strategic trade-offs.
Keywords :. What we expect as an opportunity or a gift is not experienced like this by the person concerned : the gifted understands everything very quickly and is bored in class. He is disappointed by the school that does not meet its expectations, and risk of dropping out at any time. He perceives very quickly the difference with the others, a difference difficult to live with because it is out of step with his peers : he does not have the same centers of interest and therefore, it is difficult to make friends and then lives in its own bubble away ; it is hypersensitive and suffers from this difference.. Gifted, early, in advance, with a high potential, the qualifiers for these children are many, and in France we are talking about children intellectually precocious. But precocity is to say that these children are just ahead and so that one day they might be overtaken by the other. This is not the case.. Children increasingly many These children would be more numerous, perhaps because they are ...
The genus of Gram positive bacilli including Corynebacterium diphtheriae, the cause of diphtheria in humans. Genus also includes C. minutissimum, the cause of erythrasma in humans and the diphtheroids which are commensal corynebacteria making up part of the human respiratory tract normal flora.. ...
... : Erythrasma is a skin infection caused by a gram positive anaerobic bacillus known as Corynebacterium Minutissimum and Erythrasma occurs in intertriginous area - where two skin areas touch or rub together.
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Three-dimensional structure of AprB from A. fulgidus (A, B) and selected, homology modeling-based AprB models from Allochromatium vinosum (C, D), Pelagibacter u
Author: S. MATHAVI, A.V. RAGHAVENDRA RAO, A. KAVITHA, G. SASIKALA, INDRA PRIYADHARSINI. Category: Microbiology. [Download PDF]. Abstract:. Introduction: Coryneform or the nondiphtherial Corynebacterium species remains a neglected group as contaminants. Theseorganisms havebeen associated with invasive disease, particularly in immunocompromised patients. Species like Corynebacterium amycolatum, Corynebacterium jeikeium , Corynebacterium minutissimum and Corynebacterium urealyticum are reported with increasing frequency. An alarming rate of antibiotic resistance is also documented among such organisms. Aim and Objective: This study was done to find out the various species of clinically relevant Coryneforms and to determine their antibiogram.. Materials and Methods: A total of 857 clinical samples (Pus, wound swab, urine, blood, sputum and catheter tips) received in the Microbiology department during January 2013 to October 2013 were included in the study. They were subjected to Grams staining and ...
International Hydrogenases Conference 2004: Independent Meeting held at the University of Reading, 24-29 August 2004. Edited by R. Cammack (Kings College London, U.K.) and F. Sargent (University of East Anglia, Norwich, U.K.). Organized by R. Cammack and R. Robson (University of Reading, U.K.). Sponsored by COST (European Cooperation in the field of Scientific and Technical Research), the European Science Foundation and the European Office of Aerospace Research and Development. ...
All tests showed easy failures of the slab (50 to 95 cm), which stayed on top 40-50 cm of faceted crystals Expectations for the next days. Potential for increasing and persistant danger due to the very cold conditions and forecasts for winds. Possible new slabs on top of the week layers may cause even easier fractures! Please, stay alert, dig profiles, make snow stability tests and adapt your touring/riding according to the results! M. Panayotov, 09.01.2017 . ...
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Klotrimazol, Dermálny krém, ATC D01AC01, SPC (Súhrn údajov o prípravku) Terapeutické indikácie: Mykózy kože, kožných záhybov a slizníc spôsobené dermatofytmi, kvasinkami (napr. rôznymi druhmi kandíd), a plesňami, ako sú napr.: interdigitálne mykózy, kandidózy genitálnej oblasti (candida vulvitis, candida balanitis), pityriasis versicolor, paronychie a povrchové kandidózy. Candibene krém je účinný aj na erytrazmu (kožné ochorenie, ktoré vyvoláva Corynebacterium minutissimum).
Purple and green bacteria and cyanobacteria are photosynthetic. Photosynthetic bacteria are able to produce energy from the suns rays in a process similar to that used by plants. Instead of using...
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Chromatium - WikipediaChromatium - Wikipedia

Chromatium is a genus of photoautotrophic Gram-negative bacteria which are found in water. The cells are straight rod-shaped or ... Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria Chromatium J.P. Euzéby: List of ...
more infohttps://en.wikipedia.org/wiki/Chromatium

Chromatium okenii - WikipediaChromatium okenii - Wikipedia

Chromatium okenii is a Gram-negative bacterium found in water. It belongs to the Purple sulfur bacteria. These bacteria are ... Chromatium okenii is anaerobic and the cells are slightly curved or straight rods. George M. Garrity: Bergeys Manual of ... Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria Chromatium J.P. Euzéby: List of ...
more infohttps://en.wikipedia.org/wiki/Chromatium_okenii

Chromatium - microbewikiChromatium - microbewiki

Chromatium. From MicrobeWiki, the student-edited microbiology resource. Revision as of 21:05, 12 May 2015 by Skaur5. (talk , ... Chromatium is a gram negative bacteria found in marine environments. They tend to be flagellated straight rod shaped or even ... Chromatium okenii is a gram negative purple sulfur bacteria that is capable of anoxygenic photosynthesis. It uses hydrogen ... The specialized species such as Chromatium okenii, Allochromatium warmingii, and Isochromatium budfer. These species depend on ...
more infohttps://microbewiki.kenyon.edu/index.php?title=Chromatium&oldid=114350

Chromatium - microbewikiChromatium - microbewiki

Chromatium is a gram negative bacteria found in marine environments. They tend to be flagellated straight rod shaped or even ... Chromatium okenii is a gram negative purple sulfur bacteria that is capable of anoxygenic photosynthesis. It uses hydrogen ... The specialized species such as Chromatium okenii, Allochromatium warmingii, and Isochromatium budfer. These species depend on ... Chromatium were first described by Swiss botanist, Maximilian Perty, in 1852. He introduced the genus name and called them " ...
more infohttps://microbewiki.kenyon.edu/index.php?title=Chromatium&printable=yes

Chromatium - Wikipedia, ang malayang ensiklopedyaChromatium - Wikipedia, ang malayang ensiklopedya

Ang Chromatium (Bigkas: Chro.mati.um)(Griyego, chromatium, kulay) ay isang uri ng bakterya na hugis ovoid, mani, o isang hugis ... Chromatium. Halochromatium. Isochromatium. Lamprobacter. Lamprocystis. Marichromatium. Nitrosococcus. Pfennigia. ... Kinuha mula sa "https://tl.wikipedia.org/w/index.php?title=Chromatium&oldid=1440890" ...
more infohttps://tl.wikipedia.org/wiki/Chromatium

Cloning, characterization, and functional expression in Escherichia coli of chaperonin (groESL) genes from the phototrophic...Cloning, characterization, and functional expression in Escherichia coli of chaperonin (groESL) genes from the phototrophic...

A recombinant lambda phage which was able to propagate in groE mutants of Escherichia coli was isolated from a Chromatium ... genes from the phototrophic sulfur bacterium Chromatium vinosum.. R G Ferreyra, F C Soncini, A M Viale ... genes from the phototrophic sulfur bacterium Chromatium vinosum. ... genes from the phototrophic sulfur bacterium Chromatium vinosum ... genes from the phototrophic sulfur bacterium Chromatium vinosum. ...
more infohttps://jb.asm.org/content/175/5/1514?ijkey=2326baceee548250b1b6a5ce2f487ea6d4d4e8b7&keytype2=tf_ipsecsha

Structural examination of the nickel site in chromatium vinosum hydrogenase: redox state oscillations and structural changes...Structural examination of the nickel site in chromatium vinosum hydrogenase: redox state oscillations and structural changes...

An X-ray absorption spectroscopic study of structural changes occurring at the Ni site of Chromatium vinosum hydrogenase during ... An X-ray absorption spectroscopic study of structural changes occurring at the Ni site of Chromatium vinosum hydrogenase during ... Structural examination of the nickel site in chromatium vinosum hydrogenase: redox state oscillations and structural changes ... article{Davidson2000StructuralEO, title={Structural examination of the nickel site in chromatium vinosum hydrogenase: redox ...
more infohttps://www.semanticscholar.org/paper/Structural-examination-of-the-nickel-site-in-redox-Davidson-Choudhury/b74663f791bdf1ca39a172786cab4abb6294b469

RCSB PDB - Protein Feature View 









 - LH1 alpha polypeptide - D2Z0P2 (D2Z0P2 THETI)RCSB PDB - Protein Feature View - LH1 alpha polypeptide - D2Z0P2 (D2Z0P2 THETI)

The PDB archive contains information about experimentally-determined structures of proteins, nucleic acids, and complex assemblies. As a member of the wwPDB, the RCSB PDB curates and annotates PDB data according to agreed upon standards. The RCSB PDB also provides a variety of tools and resources. Users can perform simple and advanced searches based on annotations relating to sequence, structure and function. These molecules are visualized, downloaded, and analyzed by users who range from students to specialized scientists.
more infohttps://www.rcsb.org/pdb/protein/D2Z0P2

Sulfur metabolism by marine heterotrophic bacteria involved in sulfur cycling in the ocean | SpringerLinkSulfur metabolism by marine heterotrophic bacteria involved in sulfur cycling in the ocean | SpringerLink

Sulfide oxidation in the phototrophic sulfur bacterium Chromatium vinosum. Archives Microbiol, 170: 59-68CrossRefGoogle Scholar ... Nucleotide sequence of the heme subunit of flavocytochrome c from the purple phototrophic bacterium, Chromatium vinosum. A 2.6- ...
more infohttps://link.springer.com/article/10.1007%2Fs11430-017-9234-x

Prokaryota - WikispeciesProkaryota - Wikispecies

Genus Chromatium [I]. *Genus Lamprobacter [V]. *Genus Lamprocystis [VI]. *Genus Thiocapsa [IV] ...
more infohttps://species.wikimedia.org/wiki/Prokaryota

NASA Technical Reports Server (NTRS) - The evolution of glutathione metabolism in phototrophic microorganismsNASA Technical Reports Server (NTRS) - The evolution of glutathione metabolism in phototrophic microorganisms

CHROMATIUM CYANOBACTERIA DISULFIDES DISULFIDES/ANALYSIS EUKARYOTES EUKARYOTIC CELLS EVOLUTION EXOBIOLOGY GLUTATHIONE ... Chromatium vinosum, Rhodospirillum rubrum, Rhodobacter sphaeroides, and Rhodocyclus gelatinosa), the cyanobacteria [Anacystis ... CHROMATIUM; CYANOBACTERIA; DISULFIDES/ANALYSIS; EUKARYOTIC CELLS; OXIDATION-REDUCTION; OXYGEN/TOXICITY; PHOTOSYNTHESIS/ ...
more infohttps://ntrs.nasa.gov/search.jsp?R=20040089109&hterms=euglena&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3Deuglena

Schneider, K. [WorldCat Identities]Schneider, K. [WorldCat Identities]

Nature of the iron sulfur core and stability of chromatium hydrogenase. Purification and some properties of the soluble part of ... hydrogenase from Chromatium vinosum. Physical and catalytic properties of the hydrogenase of Rhodospirillum rubrum. Comparison ...
more infohttp://worldcat.org/identities/lccn-n79-143693/

Cytochrome c, class II (IPR002321) | InterPro | EMBL-EBICytochrome c, class II (IPR002321) | InterPro | EMBL-EBI

The Chromatium vinosum cytC exhibits dimer dissociation upon ligand binding [PMID: 8230224]. ...
more infohttp://www.ebi.ac.uk/interpro/entry/IPR002321

Yoch DC[au] - PubMed - NCBIYoch DC[au] - PubMed - NCBI

Regulation of nitrogenase activity by covalent modification in Chromatium vinosum.. Gotto JW, Yoch DC. ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed?cmd=search&term=Yoch+DC%5Bau%5D&dispmax=50

Phylogeny of Dissimilatory Sulfite Reductases Supports an Early Origin of Sulfate Respiration | Journal of BacteriologyPhylogeny of Dissimilatory Sulfite Reductases Supports an Early Origin of Sulfate Respiration | Journal of Bacteriology

Chromatium vinosum (16). Comparative analysis revealed that the evolutionary distance between the enzymes fromChromatium ... strain MS 81-1-C (provided by D. Nelson) (lane 11), Chromatium vinosum ATCC 17899 (lane 12), and Methanosarcina acetivorans (UI ... 1979) Siroheme-sulfite reductase isolated from Chromatium vinosum. Purification and investigation of some of its molecular and ... detectable in the phototrophic sulfur bacterium Chromatium vinosum and in the sulfur-oxidizing chemolithotrophThiobacillus ...
more infohttps://jb.asm.org/content/180/11/2975?ijkey=6431bf03bd9a7cdc3a2d993af9d318d5efd8a188&keytype2=tf_ipsecsha

Vallabhaneni Sita Rama Das, 1933-2010: teacher and mentor | SpringerLinkVallabhaneni Sita Rama Das, 1933-2010: teacher and mentor | SpringerLink

I. Effect of carbon source and hydrogen gas on biosynthetic patterns in Chromatium. In: Studies on Microalgae and ...
more infohttps://link.springer.com/article/10.1007/s11120-015-0210-1

PPT - Microbial Ecology PowerPoint presentation | free to download  - id: 3b5a88-ODk5YPPT - Microbial Ecology PowerPoint presentation | free to download - id: 3b5a88-ODk5Y

Chromatium Chlorobium. Chromatium Chlorobium. Desulfovibrio. S2O32-. So 19. Siklus Sulfur. 1.Sulfur dalam bentuk unsur tidak ... Chromatium ---- use reduced org. and inorg. substanses as e-donors) are found at lower depths Chemolithotrophic bacteria ( ...
more infohttp://www.powershow.com/view/3b5a88-ODk5Y/Microbial_Ecology_powerpoint_ppt_presentation

Relationship of chlorophyll to protein and lipoids; molecular and colloidal solutions. Chlorophyll units | Springer for...Relationship of chlorophyll to protein and lipoids; molecular and colloidal solutions. Chlorophyll units | Springer for...

Chroma-tium. Ann. physiol. physiochim. Biol. 1, 298 (1925).Google Scholar. *. Leyon, H.: The structure of chloroplasts. III. A ...
more infohttps://rd.springer.com/chapter/10.1007/978-3-642-94798-8_14
  • Chromatium is a gram negative bacteria found in marine environments. (kenyon.edu)