c60 and molecular structure of fullerenes
Báo cáo khoa học: Three-dimensional structure of a thermostable native cellobiohydrolase, CBH IB, and molecular characterization of the cel7 gene from the filamentous fungus, Talaromyces emersonii ppt
Ngày tải lên :
23/03/2014, 13:20
... present the 3D structure of the native CBH IB from T emersonii, the first structure of any protein from this source and the first structure of a native fungal CBH core (glycoprotein) Molecular cloning, ... was 1.8°, the standard deviation of the hydrogen bond energies was 0.7 and overall G-factor, a measure of the normality of the structure, was 0.0 Fig SDS/PAGE and activity analysis of recombinant ... in position With the exception of four a-helices and two pairs of short b-strands, the rest of the protein consists almost entirely of loops connecting the b-strands The loops extending from the...
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the risk and term structure of interest rates
Ngày tải lên :
05/01/2014, 16:56
... Risk and Term Structure of Interest Rates • The risk structure of interest rates looks at bonds with the same term to maturity and different interest rates • The term structure of interest ... over the life of the long-term bond • Buyers of bonds not prefer bonds of one maturity over another; they will not hold any quantity of a bond if its expected return is less than that of another ... determined by the demand for and supply of that bond • Investors have preferences for bonds of one maturity over another • If investors have short desired holding periods and generally prefer...
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Tài liệu Medicinal Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes docx
Ngày tải lên :
17/02/2014, 05:20
... demonstrate a low impact of C60 on structure and function of soil microbial population and processes Different results have been obtained with water suspensions of nC60 on Bacillus subtilis In ... solution of Gd@ C60( OH)x and Gd @C60( C(COOH)2)10 J Am Chem Soc 127:9368–9369 Levi N, Hantgan RR, Lively MO, Carroll DL, Prasad GL (2006) C60- Fullerenes: Detection of intracellular photoluminescence and ... mechanism of autophagy seems to be activated (Yamawaki and Iwai, 2006), indicating the risk of atherosclerosis and ischemic heart disease due to C60( OH)24 administration The effect of C60( OH)24...
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Tài liệu Báo cáo khoa học: Isolation and molecular characterization of a novel D-hydantoinase from Jannaschia sp. CCS1 docx
Ngày tải lên :
18/02/2014, 08:20
... Purification of HYDBp and HYDJs tot, total proteins; ppt, precipitate fraction; sup, supernatant fraction; puri, purified proteins; M, molecular weight standards For the molecular weight standards, the bands ... positions of the Ca of Ala156 in HYDJs and the Ca of Met156 in HYDBp located in the SGL3, which leads to the increased size of the substrate binding pocket of HYDJs The side chain of Ala156 is ... preparation of the ligands, all structures were converted from isomeric SMILES (Simplified Molecular Input Line Entry System) to 3D structures using CORINA [46] Partial charges of the ligands were...
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Tài liệu Báo cáo khoa học: Endotoxic activity and chemical structure of lipopolysaccharides from Chlamydia trachomatis serotypes E and L2 and Chlamydophila psittaci 6BC pdf
Ngày tải lên :
20/02/2014, 23:20
... a ratio of : : 0.01 (v/v/v) and sprayed at a flow rate of lLÆmin)1 MALDI-TOF MS of LPS and free lipid A were performed on a Reflex III (Bruker-Daltonik, Bremen, Germany) in the linear TOF configuration ... complex pattern of several groups of ion peaks representing molecular ions (centered around m/z 2510, 2300 and 2005) and of laser-induced fragment ions [18] representing the lipid A moiety of LPS (centered ... (3-OH)-C20:0 and one C14:0, C15:0 and C20:0 each, with a calculated molecular mass of 1850.6 Da The mass spectrum obtained from LPS of Chl psittaci showed a similar complex pattern of penta-, tetra-, and...
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Tài liệu Báo cáo khoa học: Biochemical and molecular characterization of hazelnut (Corylus avellana) seed lipoxygenases pdf
Ngày tải lên :
21/02/2014, 00:20
... reaction products of the hazelnut LOX were compared with the reaction products of soybean LOX type I and authentic standards of 9- and 13-HODE As shown in Fig 4, 9-HODE is the main product of the hazelnut ... part of the world production adsorbed by the pastry industry Hazelnut seeds contain reasonable levels of linoleic and linolenic acid (about 10 and 0.2%, respectively, of the total fatty acids) and ... C6 and C9 aldehydes (and the corresponding alcohol) were detected in all the samples and, similarly to the pattern of LOX expression and activity, their levels were higher in stage I seed and...
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MORPHOGENESIS THE CELLULAR AND MOLECULAR PROCESSES OF DEVELOPMENTAL ANATOMY pptx
Ngày tải lên :
05/03/2014, 11:21
... new structures form after two distinct tissues come together, and here we will examine the generation of the neural tube in the newt and the formation of the ducted submandibular glands of the ... wish became the father of thought and the grandfather of observation: they claimed to see small but fully formed organisms in the sperm of men, horses, cocks and other animals and also in some eggs ... organisation emerges in embryos Although we often have very good descriptions of how a particular organ forms and of the nature of the participating cells and molecular constituents, it is in relatively...
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Báo cáo khoa học: Assembly and molecular mode of action of the Helicobacter pylori Cag type IV secretion apparatus doc
Ngày tải lên :
06/03/2014, 00:21
... well as in the molecular mechanisms of effector protein secretion This minireview describes the composition of the cagPAI and the properties of both conserved and unique components of the Cag-T4SS, ... phosphorylation of its effector protein CagA into various host cells is a hallmark of CagT4SS activity Despite the molecular characterization of a number of effects in host cells, the exact function of CagA ... potential implications for the current understanding of its mode of action The cagPAI and the Cag type IV secretion apparatus Gene arrangement and variants of the cagPAI The cagPAI, which was originally...
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Báo cáo khóa học: Biochemical and molecular characterization of a laccase from the edible straw mushroom, Volvariella volvacea docx
Ngày tải lên :
07/03/2014, 15:20
... and 2,6-DMP were pH 5.6 and 3.4 UÆmg protein)1 and pH 4.6 and 2.8 UÆmg protein)1, respectively In standard assay mixtures, the velocity of ABTS oxidation was maximal at 45 °C The dependence of ... in 450 mL of distilled water After draining off any remaining free water, the straw was mixed with lime (15 g) and wheat bran (15 g) and the material distributed into cellophane bags and autoclaved ... filtration of 7-day cultures of V volvacea was centrifuged (10 000 g, 30 min) and concentrated 40-fold with the Pellicon ultrafiltration system (Millipore) using a 10-kDa molecular mass cut-off membrane...
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Báo cáo khoa học: Functional fine-mapping and molecular modeling of a conserved loop epitope of the measles virus hemagglutinin protein pdf
Ngày tải lên :
08/03/2014, 08:20
... partially oxidized and the signal of the reduced species increased as a result of oxidation Identification of the active isoform Because of disulfide scrambling HPLC-purified isoforms rapidly re-equilibrate, ... an association time of 300 s and a dissociation of 180 s under a constant flow rate of 20 lLÆmin)1 at 25 °C The sensorgram profile of each run was subtracted by the signal of the irrelevant peptide ... negative for binding High conservation of the HNE sequence Molecular modeling of the HNE peptide An interesting and important feature of the HNE is its high degree of conservation among field isolates...
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Báo cáo khoa học: Enzymatic characterization and molecular modeling of an evolutionarily interesting fungal b-N-acetylhexosaminidase pot
Ngày tải lên :
14/03/2014, 23:20
... blue) and standard (magenta) substrates after ns of MD (C) Overlay of positions of N-propionyl modified (light blue) and standard (magenta) substrates after ns of MD (D) Molecular surface of the ... ture of the model after ns of refinement: 0.4% of the turn structure was remodelled to b-sheets and the percentage of a-helical elements increased by 0.5% The positions of the C-alpha atoms of Ala452-Asn462 ... hydrolysis of N-formyl, N-glycolyl and N-propionyl derivatives of the standard N-acetyl substrate) than A oryzae (2–5% hydrolysis) The cloning and sequencing of PoHex and analysis of the corresponding...
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Báo cáo khoa học: Sequences, geographic variations and molecular phylogeny of venom phospholipases and threefinger toxins of eastern India Bungarus fasciatus and kinetic analyses of its Pro31 phospholipases A2 docx
Ngày tải lên :
16/03/2014, 12:20
... mutational rates of the exon of the 3FTx genes are much faster than those of the PLA genes, leading to high variation of KBf-3FTx Cloning and cDNA sequencing Venom glands of only one of the KBf specimens ... present in B candidus venom, while 3FTx-RK is 84% identical to bucain [25] of B candidus Calcium binding and kinetic parameter of the P31-PLAs Four PLAs (Va, Vb-2, VI and II) of KBf and Bf contain ... the prey of Bf and king cobra consists mainly of snakes and reptiles, which are distinct from those of other kraits (e.g B candidus and B multicinctus, which prey on small catfishes, eels and rodents...
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Báo cáo khoa học: Isolation, characterization, sequencing and crystal structure of charybdin, a type 1 ribosome-inactivating protein from Charybdis maritima agg. potx
Ngày tải lên :
16/03/2014, 14:20
... Overall structure of charybdin b-Strands are shown in blue and a-helices in red The structural elements are labeled as follows: b-strands 1–10 and helices A–J The N-termini and C-termini of the ... careful inspection of the crystal structures of 12 RIPs in order to choose a suitable model for molecular replacement In the N-terminal domain, a section of five strands of the b-sheet and one flanking ... the RIPs, and a two-stranded b-sheet and 10 (Figs and 5) In charybdin there exists an additional 310 helix (J, Figs and close to the C-terminus of the protein) This is a unique feature of charybdin...
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Báo cáo khoa học: "Parsing with Treebank Grammars: Empirical Bounds, Theoretical Models, and the Structure of the Penn Treebank" ppt
Ngày tải lên :
17/03/2014, 07:20
... span? For T RIE and L IST, an active state cor- n Figure 12: Grammar sizes: active state counts responds to a prefix of a rule and is a mix of POS tags and phrasal categories, each of which must ... using the bottoms of chains increases the frequency of tags relative to categories 16 This is also false; tags occur slightly more often at the beginnings of rules and less often at the ends ... number of tags and of categories in Call this pair the signature of For a given signature , let be the number of active states in the grammar which have that signature Now, take a state of signature...
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Báo cáo khoa học: Purification, characterization and molecular cloning of tyrosinase from the cephalopod mollusk, Illex argentinus docx
Ngày tải lên :
17/03/2014, 10:20
... dialyzed solution of AS60 (300 mL) obtained from 100 g of defatted ink powder contained 2.9 g of protein, 0.29 g of hexose, 0.25 g of uronic acid, 0.12 g of methylpentose and 5400 units of tyrosinase ... The molecular masses of the subunits of ST94 and ST94t were similar to those of the proenzymes ( 70–80 kDa) and the activated enzymes by proteolysis ( 60–70 kDa) of a bivalve tyrosinase [34] and ... bond These estimates of the molecular mass of ST94 were supported by the result of gel permeation HPLC (Fig 3) There was a minor band between 140 and 232 kDa in the native-PAGE of Fig 2A (lane 1),...
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hydrothermal synthesis and crystal structure of a novel one - dimensional tritungstate
Ngày tải lên :
19/03/2014, 16:48
... 2q cations occupy interstrand regions 4y of the W6 O 20 chains and exhibit strong hydrogen bond network to terminal and bridging oxo groups of the anionic 4y chains of W6 O 20 X Crystal data ... rearrangement of tungstenoxoanions, and construction of novel solid architecture from molecular precursors It opens up the possibility of applying this method for assembling other low-dimensional and open-framework ... associated with Õ ŽO–W–O modes In addition, absorption bands at 1480 and 1624 cmy1 , and a broad band centred at 3400 cmy1 suggest the presence of en species By replacing en with other organodiamines...
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the role of morphology and crystallographic structure of metal oxides
Ngày tải lên :
20/03/2014, 13:11
... the uniformity of those structures Unfortunately, the problem of separation, sizing, and manipulations of one-dimensional structures is not resolved yet To achieve uniform sizing and orientation, ... basis of such materials, it is necessary to expand our understanding of gas sensor mechanism in nanoand polycrystalline oxides For example, it is necessary to establish the role of morphology and ... experimental study and theoretical understanding of the fundamentals of gas-sensing mechanisms in metal oxides In analyzing the opportunities of one-dimensional structures of various types for...
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Báo cáo khoa học: Cellular and molecular action of the mitogenic protein-deamidating toxin from Pasteurella multocida pptx
Ngày tải lên :
22/03/2014, 15:21
... reaction on related Molecular action of Pasteurella multocida toxin G-protein targets and with overlapping cellular outcomes, the sequence and structure of the activity domain of PMT differ considerably ... from those of the other dermonecrotic toxins [3] and point to a clear functional example of convergent toxin evolution In this review, we focus on PMT and our current understanding of the structure function, ... Ga isoforms, as all of the Ga subunits have analogous active site Gln residues (equivalent to Gln204 of Gai1, Gln205 of Gai2, Gln229 of Ga12 ⁄ 13 and Glu209 of Gaq ⁄ 11) and share significant...
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Governance and organizational structure of the inter-agency secretariat to the United Nations International Strategy for Disaster Risk Reduction (ISDR) pot
Ngày tải lên :
23/03/2014, 02:20
... reviews and surveys to improve the structure of the Organization and its responsiveness to the requirements of programmes and legislative mandates, and monitor the effectiveness of the systems of ... implementation of programmes and legislative mandates, ascertain compliance of programme managers with the financial and administrative regulations and rules, as well as with the approved recommendations of ... FUNCTION “The Office shall, in accordance with the relevant provisions of the Financial Regulations and Rules of the United Nations examine, review and appraise the use of financial resources of the...
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