03 enthalpy entropy and volume changes of electron transfer reactions in photosynthetic proteins
pplication of Thermodynamics to Biological and Materials Science
Ngày tải lên :
09/04/2015, 17:19
... Petrikaitė and Daumantas Matulis 77 Chapter Enthalpy, Entropy, and Volume Changes of Electron Transfer Reactions in Photosynthetic Proteins 93 Harvey J.M Hou Chapter Thermodynamics of Supramolecular ... evaluation Protein structure, ligand binding to proteins, nucleic acid conformation/binding /reactions are described in detail Cells and organs are also subjects of thermodynamic analysis, and cancer ... ITT of the protein -in- water heat engine of biology would seem to contradict the Second Law of Thermodynamics But in fact, the heat driven increase in disorder (in entropy) as pentagonal rings of...
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Iron(III) and copper(II) complexes bearing 8 quinolinol with amino acids mixed ligands synthesis, characterization and antibacterial investigation
Ngày tải lên :
02/09/2015, 13:46
... O- and N-containing ligands Spectrosc Lett 38 (1), 23–24 Mwadham, M.K., Eno, E.E., 2013 Structure, stabilization energies, and binding energies of quinoxaline (H2O)n, quinoxaline dimer, 747 and ... and their complexes in dimethylsulphoxide gave electronic transitions in terms of bands due to their electron transfer within the ligands, charge transfer transition from ligand orbitals to the ... iron(III) and copper(II) complexes of mixed ligands, 8-hydroxyquinoline and alanine or methionine amino acids: [M(HQ)(AA)nH2O, n = 0–2; M = Fe(III) and Cu(II)] Experimental Pseudomonas aeruginosa...
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Báo cáo khóa học: Isolation and biochemical characterization of two soluble iron(III) reductases from Paracoccus denitrificans docx
Ngày tải lên :
30/03/2014, 13:20
... utilizing both NADH and NADPH as electron donors, exhibiting ping-pong kinetics and having a number of activities including that of quinone reductase Indications exist that a quite small number of ... The proteins were eluted in two phases with 300 mL of linear gradient of 0–0.6 M NaCl and 50 mL of linear gradient of 0.6–1 M NaCl at a flow rate of 0.8 mLÆmin)1 Fractions of mL were collected and ... spectrum was obtained after the addition of 0.4 mM NADH Fig N-Terminal amino acid sequences of P denitrificans FerA and FerB (A) and comparison of the N-terminal amino acid sequence of FerB with the...
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Multimodal tumor imaging by iron oxides and quantum dots formulated in poly (lactic acid) d alpha tocopheryl polyethylene glycol 1000 succinate nanoparticles
Ngày tải lên :
13/10/2015, 15:54
... can basically be subdivided into two categories, namely the intrinsic and extrinsic factors Intrinsic factors mainly include the genetic make up of the body and the individuals cannot control ... its advantages and limitations Therefore, by only using one contrast agent and utilizing one mode of imaging may result in certain features within organs suggesting the onset of a particular ... THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF CHEMICAL AND BIOMOLECULAR ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE 2010 ACKNOWLEDGEMENTS First of all, I would like to express...
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Riverbank filtration: removal of iron, manganese and hardness
Ngày tải lên :
05/09/2013, 08:40
... the quality of tap water Moreover, in case of accidental spill of pollutant, the distribution of water should be discontinued In order to supply safe drinking water, reservoir water and bankfiltrate ... industrial and drinking water to remove high hardness and iron, manganese that is included in bankfiltrate MATERIALS AND METHODS Development areas of bankfiltrate Figure shows development areas of bankfiltrate ... The comparison of water flux and total hardness removal by pressure to select optimal membrane were shown in Fig and Fig Flux was increased with pressure increases in three kind of NF film UTC-60...
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Application of Hydrothermal Reaction to Biodegradability Improvement of Refractory Pollutants: Structural Conversion of Di- and Trichloroacetic Acid to Biodegradable Products
Ngày tải lên :
05/09/2013, 08:40
... time of CAAs in the field and laboratory study Initial water quality indexes of DCAA and TCAA did not change in ambient water Since the deviation of water quality indexes was less than % of each ... - 221 - Journal of Water and Environment Technology, Vol.1, No.2, 2 003 results of TOC and DOC In case of TCAA, more than 70 % of TOC and CODCr were mineralized within as shown in Figure After ... results, only the initial fracture of DCAA and TCAA was different from the reaction pathway of MCAA The initial decomposition of DCAA and TCAA was mainly due to complex reactions including hydrolysis,...
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Characterization of the Carbon Stable Isotope Ratio and Fatty Acid Structure of Zostera japonica in Coastal Areas
Ngày tải lên :
05/09/2013, 10:17
... of PC1-axio, suggest that 18:2n6c and LCFAs were contained in greater amounts in the roots and rhizomes than in the leaves and stems, and 18:3n3 was contained in lesser amounts in the roots and ... structure in Z japonica We found about 30 kinds of fatty acids in the leaves and stems and about 36 kinds of fatty acids in the roots and rhizomes of Z japonica We focused on the fatty acid content of ... up in a shallower zone than Z marina Seawater in the intertidal zone should contain more CO2 than in the sublittoral zone because the seawater in the intertidal zone - 103 - Journal of Water and...
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Tài liệu Báo cáo " Obtaining Essential Oil and Shikimic Acid from Star Anise Fruit (Illicium verum Hook) " ppt
Ngày tải lên :
12/02/2014, 17:20
... funded by the Ministry of Industry and Trade, S R Vietnam and the Food Industries Research Institute Vietnam [4] References [5] [1] B.T.B Ngoc, Research on technology of obtaining, refining star anise ... regulated to maintain a rate of condensate of 22- 25 drops per The oil sample was allowed to cool at room temperature and then the volume of obtained essential oil was read During distilling essential ... combining of distillation and extraction in the Clevenger apparatus is suitable B.Q Thuat, B.T.B Ngoc / VNU Journal of Science, Natural Sciences and Technology 26 (2010) 110-113 for obtaining...
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Tài liệu Báo cáo khóa học: Active-site residues and amino acid specificity of the bacterial 4¢-phosphopantothenoylcysteine synthetase CoaB pptx
Ngày tải lên :
19/02/2014, 12:20
... [6], determining the elution volumes of standard proteins and the void volume of the column The Superdex 200 PC 3.2/30 column and the standard proteins used for calibration were obtained from ... tempting to speculate that the loop is involved in binding one of the (co)substrates of CoaB, indicating that the provided models of the substrate binding sites of human CoaB not give a complete insight ... Purification of His-CoaB and Dfp proteins was examined using tricine-SDS/PAGE (10%) under reducing conditions [16] Prestained protein molecular mass standards were obtained from New England Biolabs 166...
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Tài liệu Báo cáo khoa học: The SCO2299 gene from Streptomyces coelicolor A3(2) encodes a bifunctional enzyme consisting of an RNase H domain and an acid phosphatase domain pdf
Ngày tải lên :
19/02/2014, 18:20
... On the other hand, when induced at 37 °C, almost all of the protein accumulated in an insoluble form Recombinant proteins of the N-terminal (amino acid residues 1–159) and C-terminal (residues ... consisting of an RNase H domain and an APase domain The RNase H and APase activities of the full length SCO2299 protein depend on its N-terminal RNase H domain and C-terminal APase domain, respectively, ... the independence of the two domains Analyses of other SCO2299-like proteins and comparisons with the SCO2299 protein will provide some information on the role of the intermediate region and further...
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Tài liệu Báo cáo khoa học: Distribution of class I, III and IV alcohol dehydrogenase mRNAs in the adult rat, mouse and human brain ppt
Ngày tải lên :
21/02/2014, 00:20
... because of their implications in the metabolism of ethanol and retinoic acid In vitro and in vivo data indicate that ADH1, ADH3 and ADH4 can oxidize retinol to retinal, with ADH4 having very ... (retinoic acid receptors, cellular binding proteins and oxidizing enzymes) have been mapped within the adult dopamine system [35] In the adult brain, retinoic acid has been proposed to be involved ... expression in the adult brains of 15 different inbred strains has been investigated by isoelectric focusing followed by staining of enzyme activity [41] ADH3 activity was detected in all strains studied...
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Tài liệu Báo cáo Y học: The b-1,4-endogalactanase A gene from Aspergillus niger is specifically induced on arabinose and galacturonic acid and plays an important role in the degradation of pectic hairy regions pdf
Ngày tải lên :
21/02/2014, 01:21
... stranded sequence was determined for a region of this construct containing galA and some of the flanking regions, resulting in the genomic sequence of A niger galA The presence of one putative intron ... described in Material and methods, and transferred for h to minimal medium containing carbon sources as indicated in Fig Expression of galA was only detected in the presence of sugar beet pectin, whereas ... and 0.3% L-arabinose and is predominantly linear Potato arabinogalactan consists of 86% D-galactose and 6.6% L-arabinose, while soy arabinogalactan consists of 57% D-galactose and 38% L-arabinose...
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Tài liệu Báo cáo khoa học: Coordination chemistry of iron(III)±porphyrin±antibody complexes In¯uence on the peroxidase activity of the axial coordination of an imidazole on the iron atom ppt
Ngày tải lên :
21/02/2014, 03:20
... binding of ligands on the iron of Fe(porphyrin))13G10 complexes: (A) binding of H2O2 on the iron of 13G10-(Fe(ToCPP), (B) binding of two CN± ligands on the iron of 13G10-(Fe(ToCPP), (C) binding ... rings packed against tyrosine residues of the VL domain Binding of imidazoles to the iron(III) of Fe(ToCPP) and Fe(ToCPP))13G10 The second part of our results concerns the binding of imidazole derivatives ... performed in the presence of a,a- and a,b-1,2-Fe(DoCPP))13G10 complexes, the rate of oxidation of ABTS by H2O2 increased sharply in the presence of increasing amounts of imidazole, from an initial...
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Tài liệu Báo cáo Y học: Bivalent cations and amino-acid composition contribute to the thermostability of Bacillus licheniformis xylose isomerase doc
Ngày tải lên :
22/02/2014, 07:20
... amino acids (i.e Q, N, S, and T) and an increase in charged amino-acid residues (i.e K, E, and R) in hyperthermophilic proteins As S and T can catalyze the deamination and backbone cleavage of ... chain of an amino acid These mutations to both metal-binding sites, M1 and M2, resulted in destabilized XIs For example, mutation of His220 in the class I S rubiginosus XI affected metal binding ... inactivating at a measurable rate increase from the apoenzyme to the Mn2þ-containing enzyme, loss of the metal cofactor could be the limiting step in BLXI inactivation Higher Ea values of inactivation...
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Dissimilatory Fe(III) and Mn(IV) reducing prokaryotes
Ngày tải lên :
15/03/2014, 23:56
... environments and in cultures of FMR However, in both cultures and sediments, most of the Fe(II) and Mn(II) produced during microbial reduction of insoluble Fe(III) and Mn(IV) oxides often remains in solid ... reduction of poorly crystalline Fe(III) oxide In most instances, sustained growth is difficult to maintain in consecutive transfer of pure cultures with crystalline Fe(III) oxides as the electron ... oxides in cultures without added electron shuttling compounds and chelators and the lack of evidence for release of electron shuttling or chelating compounds by the microorganisms (Nevin and Lovley,...
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Báo cáo khoa học: Involvement of NF-jB subunit p65 and retinoic acid receptors, RARa and RXRa, in transcriptional regulation of the human GnRH II gene pot
Ngày tải lên :
16/03/2014, 10:20
... receptor interacting protein (GRIP1), activator of thyroid and retinoic acid receptor (ACTR) and p300 ⁄ cAMP response element binding proteinbinding protein (CBP ⁄ p300) [26–28] This may explain the ... formation of Complex A, indicating that the p65 subunit and members of the RAR family are involved in the DNA–protein Complex in TE671 cells Intriguingly, along with the abolition of Complex ... GnRH II gene in both cell lines, indicating the strong potency of repression induced by p65 -v e 274bp Fig ChIP assay of GnRH II promoter on TE671 cells It shows binding of p65, RAR and RXR to...
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Báo cáo Y học: Amino acids 3–13 and amino acids in and flanking the 23FxxLF27 motif modulate the interaction between the N-terminal and ligand-binding domain of the androgen receptor pdf
Ngày tải lên :
17/03/2014, 10:20
... function of the AR3)36 subdomain AR3)13 in N/C interaction and the role of individual amino acid residues in and flanking the 23 FQNLF27motif in AR16)36 in N/C interaction Yeast protein interaction ... the right of each bar and represents the ratio of activities determined in the presence and absence of R1881 (C) Western analysis of indicated GalAD-AR.NTD proteins in the yeast protein interaction ... bovine serum (Life The ligand-dependent interaction between AR NTD and AR LBD, N/C interaction, was studied in yeast and mammalian in vivo protein interaction systems, and in Ó FEBS 2002 Interaction...
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Báo cáo khoa học: Structural characterization of N-linked oligosaccharides of laminin from rat kidney: changes during diabetes and modulation by dietary fiber and butyric acid pdf
Ngày tải lên :
22/03/2014, 17:20
... functioning of the kidney, maintaining the glomerular basement membrane architecture is crucial, which in turn depends on the proper structure and function of matrix proteins, including laminin and ... condition of rats [14] In this article, we have tried to determine and explore the changes in Nlinked oligosaccharides of laminin during diabetes and the likelihood of dietary fiber and butyric acid in ... in the presence of protease inhibitors for further studies SDS/PAGE of laminin The purity of laminin was ascertained by 3.5% SDS ⁄ PAGE and visualized by silver staining for bands corresponding...
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Reductive Cleavage of N-O Bonds in Hydroxylamines and Hydroxamic Acid Derivatives Using Samarium Diiodide pot
Ngày tải lên :
22/03/2014, 18:20
... and stereoselective reductions of 2-hydroxyimino amides with SmI2 in the presence of the proton source methanol.14b Interestingly, there appear to be no reports of the cleavage of N-O bonds in ... reduction of a wide variety of compounds containing nitrogen in an uncommon oxidation state has been examined) 7"18 Treatment of these N-O bond containing compounds with SmI2 resulted in good to ... hydroxylamines are shown in Table Some of the yields reported are for the acetamide or trifluoroacetamide instead of the primary amines, due to problems arising in their isolation For example, in the...
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