generation and propagation in the microgene polymerization reaction and in vivo
pplication of Thermodynamics to Biological and Materials Science
Ngày tải lên :
09/04/2015, 17:19
... Chapter Tandem DNA Repeats: Generation and Propagation in the Microgene Polymerization Reaction and in vivo 175 Mark Itsko, Eitan Ben-Dov, Avinoam Rabinovitch and Arieh Zaritsky Chapter The Second ... than the increase in order (decrease in entropy) as the model protein associates Thus, in spite of the increase in order of the protein component, the ITT of ECMPs, is endothermic like those of the ... the arrow-of-time) using the argument, “Let us draw an arrow arbitrarily If as we follow the arrow we find more and more of the random element in the state of the world, then the arrow is pointing...
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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
... to the enhanced kinetic lability of the alanine-amino acid ligand which, through Jahn–Teller distortion, may assist the ligand exchange and binding to the organisms We would in nearest future ... 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 ... vibrational frequency These bathochromic effects (ca 20 cmÀ1) in the groups were attributed to coordination See Fig The UV/visible spectra band assignment of the ligands and their complexes in dimethylsulphoxide...
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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
... 3) In the case of FerB, the distinctive spectral features (Fig 3) and the ping-pong kinetic patterns (Fig 6) make it likely that the enzyme shuttles between the forms containing oxidized and ... prosthetic group and those having a noncovalently bound flavin cofactor Considering the negative result of the spectroscopic search for a bound flavin group and the sequential kinetic pattern obtained ... Non-denaturing electrophoresis was carried out in the same manner, but with omission of SDS from the gel running and loading buffers, and the sample was not pretreated under denaturing conditions Staining...
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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
... imaging system, in vivo, ex vivo and in vitro analyses should be done and cross-referenced Most studies in the research field are related to either ex vivo or in vitro analysis, lacking in in vivo ... 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 ... QDs (containing 1.42 µg/mL Cd), the free IO (containing 5.73 µg/mL Fe), and the QDs and IOs-loaded PLA-TPGS NPs (containing 1.42 µg/mL Cd and 5.73 µg/mL Fe) respectively dispersed in the medium...
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Riverbank filtration: removal of iron, manganese and hardness
Ngày tải lên :
05/09/2013, 08:40
... permanganate, according to literature, and this reaction is finished at the second round Mogan and stumm finds that the potassium permanganate demand to oxidize manganese is less than the stoichiometric ... bankfiltrate are being discussed as alternative water resources However, constructing a new reservoir dam may damage the natural ecology and upset the balance in nature In the meantime, the Nakdong ... manganese by MnO2 slurry The results using Lagmuir isotherms to investigate Mn adsorption amounts by MnO2 slurry was shown in Fig The slope is 1/qmax and calculated the value of the maximum Mn adsorption...
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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
... was selected The reactions of DCAA and TCAA with water were conducted at 250 oC and MPa within 60 The desired pressure was obtained by adjusting the initial sample volume using the data on steam ... reactor was sealed, and then the air inside was replaced with pure nitrogen gas The reactor was put into the preheated molten salt bath during the desired reaction time Then the reactor was immediately ... that DCAA and TCAA were partially fractured and then converted to other products at the beginning of hydrothermal reaction In the total carbon contents of DCAA, 59 % of malic 25 17 27 57 Reaction...
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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
... was contained in lesser amounts in the roots and rhizomes than in the leaves and stems The content of 18:2n6c, 18:3n3 and LCFAs in the leaves and stems was compared with that in the roots and rhizomes ... stems, and -11.6 ± 1.5‰ in the roots and rhizomes Meanwhile, Z marina in the leaves and stems has -9.7 ± 1.0‰, and in the roots and rhizomes has -9.6 ± 1.0‰ Fig shows that the leaves and stems ... LCFAs other Fig.3 Dominant fatty acid content in the leaves Fig - Dominant fatty acid content in the Fig.4 Dominant fatty acid content in the roots the Fig - Dominant fatty acid content in and stems...
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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
... as well as the quality of the products is very good [2] Acknowledgement [3] The author was funded by the Ministry of Industry and Trade, S R Vietnam and the Food Industries Research Institute ... of extracting shikimic acid was simultaneously carried out in the distillation flask After finishing this process, the aqueous solution in the flask was filled to remove solid part and then concentrated ... 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...
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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
... probably involved in cysteine binding), the in vitro activity of further mutants was measured in the presence and absence of cysteine It turned out that also for the mutant proteins His-CoaB R206Q and ... 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 ... be involved in 4¢-phosphopantothenate binding are not functionally equivalent, at least in the E coli protein In order to assign a function to the conserved lysine residue and to all the other...
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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
... comparisons with the SCO2299 protein will provide some information on the role of the intermediate region and further information on the relation between the two domains Multiple RNase H genes in the S ... 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, ... proteins were examined in vitro employing a 12-bp oligomeric RNAÆDNA hybrid as a substrate As shown in Fig 3, the full length protein and the N-terminal domain of SCO2299 could cleave the RNA strand...
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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
... involvement of ADH1 and ADH4 in ethanol oxidation in brain tissue Regarding retinoid metabolism in the adult brain, enzymes other than ADH4 must be active, because in vivo and in vitro data indicate ... can be oxidized in brain homogenates and that catalase is involved in the accumulation of acetaldehyde in the brain [27], explaining its presence despite the absence of ADH1 and the fact that acetaldehyde ... 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 high...
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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
... and containing the galA gene and approximately 700 bp 3¢-flanking region, in pIM4700 (containing the pkiA promoter) A niger The sugar composition of the arabinogalactans from potato, onion and soy ... proteins The three arabinogalactans were incubated with GALA for 15 min, 30 min, h and 20 h to determine the substrate specificity of the enzyme The degradation of the polymer Ó FEBS 2002 and subsequent ... proteins in A niger [33] The fusion construct (pIM3982) was made by introducing an NsiI site at the translation start point of galA and by then cloning a fragment, starting at this NsiI site and...
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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
... face of the porphyrin and, in the more favorable conformation, H2O2 binds to the iron on the same face of the porphyrin as the catalytic COOH residue, the imidazole binding to the iron on the opposite ... 1/[ImH] and 1/[ImH]2 ± [(ToCPP)Fe(CN)2] (19.5 0.3 mM) (Table 1) The binding of the ®rst CN± ligand to the iron was thus more easy in the hydrophobic binding pocket of the antibody than the binding ... bind on the other more hindered face of the porphyrin that bears the three a-carboxyphenyl groups and is stacked against the antibody protein (Fig 7) This hypothesis is further sustained by the C50...
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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
... (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 Q and N residues ... information for BLXI in the presence of Mn2þ (or Co2þ) and Mg2þ would provide insight into the molecular determinants responsible for the differences in Ea The large variation in Ea of BLXI inactivation ... molecules in the aggregate As the aggregate increased in size with inactivation time, more and more soluble enzyme may remain trapped in the insoluble pellet during centrifugation These results...
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Dissimilatory Fe(III) and Mn(IV) reducing prokaryotes
Ngày tải lên :
15/03/2014, 23:56
... Fe(III) and Mn(IV) is of environmental significance in a variety of aquatic sediments and the subsurface, influencing both the carbon cycle and the fate of many metals and metalloids, in both pristine ... Fe(III) and Mn(IV) and thus microbial Fe(III) and Mn(IV) reduction results in a marked increase in dissolved iron and manganese in anaerobic environments and in cultures of FMR However, in both ... electron acceptor The ability of FMR to both reduce and oxidize extracellular quinones permits their use with other quinoneoxidizing and quinone-reducing microorganisms as an interspecies electron...
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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
... tissues, including kidney, placenta, cerebellum and corpus callosum of the brain at the transcription level L-CoR interacts with both HDAC2 and another corepressor C-terminal binding protein, mediating ... aprotinin and 1.5 lgÆmL)1 pepstatin A) and eluted in the elution buffer (1% SDS and 0.1 m NaHCO3) The mixture was incubated at 65 °C for h to reverse the formaldehyde cross-linking Protein was ... activity of the hGnRH II gene in TE671 and JEG-3 cells In vivo effect of RARa and RXRa with their ligands, ATRA and 9-cisRA, on the promoter activity of the hGnRH II gene in TE671 cells and JEG-3...
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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
... 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 ... 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 assays indicated that AR3)13 ... Brinkmann, A.O & Trapman, J (1997) Functional in vivo interaction between the amino-terminal, transactivation domain and the ligand binding domain of the androgen receptor Biochemistry 36, 1052–1064...
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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 ... [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 modulating these ... studying the structure of oligosaccharides is crucial in ascertaining their role The total carbohydrate content in laminin was shown to be 32% Reports of the abundance of carbohydrates in laminin...
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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
... 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 ... Resulting in Compounds Possessing N-O Bonds Recently, in our study toward the total synthesis of 7-deoxypancratistatin, we needed to reductively cleave the N-O bond in the product resulting from ... was removed in vacuo and the residue was taken up in CH2C12 (25 mL) The reaction mixture was then made basic to pH = using a N aqueous NaOH solution The layers were separated and the aqueous...
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