báo cáo khoa học: "Mechanistic aspects of biosynthesis of silver nanoparticles by several Fusarium oxysporum strains" pps
báo cáo khoa học: "Mechanistic aspects of biosynthesis of silver nanoparticles by several Fusarium oxysporum strains" pps
... CentralPage 1 of 7(page number not for citation purposes)Journal of NanobiotechnologyOpen AccessResearchMechanistic aspects of biosynthesis of silver nanoparticles by several Fusarium oxysporum ... contributorsAbstractExtracellular production of metal nanoparticles by several strains of the fungus Fusarium oxysporum was carried out. It was found that aqueous silver ions when exposed to several Fusarium oxysporum strains ... in solution, thereby leading to the formation of silver hydrosol. The silver nanoparticles were in the range of 20–50 nm in dimensions. The reduction of the metal ions occurs by a nitrate-dependent...
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Báo cáo khoa học: Mechanistic aspects and redox properties of hyperthermophilic L-proline dehydrogenase from Pyrococcus furiosus related to dimethylglycine dehydrogenase⁄oxidase potx
... catalyst.Identification of flavin cofactor in PRODHFollowing release from the enzyme, the chemical identity of the flavin cofactor in PRODH was determined by MALDI-TOF MS. Cofactor was released from the enzyme by ... the K+adduct of released FAD cofactor. The m ⁄ z peaks of 348 and 458 represent the [M +H]+ion of both AMP and FMN,respectively, which result from partial hydrolysis of FAD cofactor during ... a new member of the hyperthermo-philic class of PRODHs that couples the oxidation of l-proline to the reduction of a noncovalently boundFAD and the production of P5C. Oxidation of enzyme-bound...
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Tài liệu Báo cáo khoa học: Novel aspects of heat shock factors: DNA recognition, chromatin modulation and gene expression ppt
... [66]. The bookmarking function of HSF2 is achieved by recruitment of protein phos-phatase 2A to inhibit nearby condesin complexes by dephosphorylation. The bookmarking of the HSP70promoter and other ... bound by HSFs. Efficient trimerization of HSFs is important to establish interactions with thegap- and step-type HSEs. The different types of HSEsresult in the induction, by yeast HSFs, of different ... repression on the promoter, for example,degradation of the ncRNA repressors by an RNase,removal of the ncRNA repressors by an RNA helicase,or binding of another ncRNA to Pol II to displace thencRNA...
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Tài liệu Báo cáo khoa học: Molecular aspects of rheumatoid arthritis: chemokines in the joints of patients pdf
... proliferation of FLS [13,47]. Our groupreported that the proliferation of FLS by MCP-4 ⁄ CCL13 is dependent on activation of the extracellu-lar regulated kinase MAPK. The activation of MAPKis ... release of MMP-3 [10]. Pathological concentra-tions of SDF-1 ⁄ CXCL12 induce the death of humanchondrocytes and this is dependent on the p38MAPK activity [51]. Lymphotactin ⁄ XCL1 stimulation of ... downregulation of MMP-2 production [52]. Thus, chemokines released by mononuclear cells and FLS, or by the chondro-cytes themselves, can induce an autocrine ⁄ paracrinestimulation of these cells,...
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Tài liệu Báo cáo khoa học: Molecular aspects of rheumatoid arthritis: role of environmental factors pdf
... 0.5–1% of the popu-lation and causes progressive joint destruction thatleads to the restriction of activities of daily living anddeterioration of quality of life. Although the patho-genesis of ... 0.5–1% of the population. RA causes progressive joint destructionthat leads to the restriction of activities of daily living and deterioration of quality of life. Although the pathogenesis of RA ... 4459MINIREVIEWMolecular aspects of rheumatoid arthritis: role of environmental factorsShu Kobayashi, Shigeki Momohara, Naoyuki Kamatani and Hiroshi OkamotoInstitute of Rheumatology, Tokyo Women’s...
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Tài liệu Báo cáo khoa học: Molecular aspects of rheumatoid arthritis: role of transcription factors ppt
... RAGE on the surface of synovialcells, thereby resulting in NF-jB signaling and theactive promotion of RA-mediated joint inflammation.To study the biological implication of SAA expressionin ... translocation of NF-jB, whereaspre-incubation of SAA with RAGE inhibited nucleartranslocation [12]. These data suggested that SAA of RA joints is actively involved in the pathogenesis of RA through ... suppression of cytokine expressiondescribed above and indicate that this suppression iscaused by the inhibition of NF-jB nuclear trans-location in FLS. To investigate further the anti-NF-jBeffects of...
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Báo cáo khoa học: Molecular cloning and characterization of methylenedioxy bridge-forming enzymes involved in stylopine biosynthesis in Eschscholzia californica doc
... alkaloids of Papaveraceous plants. XXV. Biosynthesis of the alkaloids of Corydalis incisa Pers.and Chelidonium majus L. incorporations of tetrahydro-protoberberines, N-methosalts of tetrahydroprotoberber-ines, ... structures of isoquinolinealkaloids, because the structures of many P450s areclosely correlated with those of their substrates. Fur-ther identification and characterization of other mem-bers of the ... parameters of CYP719A2, theamount of nandinine produced was estimated by using acalibration curve of (S)-scoulerine (pmol versus peak area)at 285 nm. To determine the kinetic parameters of CYP719A3,...
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Báo cáo khóa học: Mechanistic insight into the peroxidase catalyzed nitration of tyrosine derivatives by nitrite and hydrogen peroxide doc
... addi-tions of several volumes of nitrogen dioxide to solutions of 5did not yield any nitration products. When 5 was reactedwith peroxynitrite in the absence of carbon dioxide several products ... nitration by nitrite. Plot of the rate of LPO-catalyzed nitration of phenol 4 as a function of nitrite concentration in 200 mMphosphate buffer (pH 7.5), at 25 °C.The inset shows an expansion of the ... concen-tration range.Fig. 3. Inhibition of the HRP-mediated phenol nitration by nitrite. Plot of the rate of HRP-catalyzed nitration of phenol 4 as a function of nitrite concentration in 200 mMphosphate...
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Báo cáo khoa học: "Formal aspects and parsing issues of dependency theory Vincenzo Lombardo and Leonardo Lesmo" potx
... the substructure rooted by a node of category Yi must contain the trace nodes of the type licensed by the u-triples. The prediction of a trace occurs as in the case 2) of the derivation process. ... the indices of a word object in a derivation. T-stack is a stack of sets of u-triples to be satisfied yet: the sets of u-triples (including empty sets, when applicable) provided by the various ... set of symbols (words of a natural language); C is a set of syntactic categories (among which the special category E); S is a non-empty set of root categories (C ~ S); D is the set of dependency...
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Báo cáo khoa học: Novel aspects of calmodulin target recognition and activation pptx
... insertion of CaM between two domains of the anthrax exotoxin (d)binding of Ca2+ions to only one EF-hand pair and (e)binding of CaM in an extended conformation to some of itstargets. The mode of ... displaced by 15 A˚and rotated by 30° upon binding of CaM. In addition, several short sheetstructures, helices and loops of exotoxin rearrange andchange their conformation.The C-terminal lobe of ... suggested to be initiated by the loss of Ca2+ionsfrom the N-terminal CaM lobe, likely followed by loss of Ca2+from the C-terminal lobe and subsequently followed by rapid loss of the peptide [62].Due...
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