Báo cáo khoa học: " The role of marine salt and surfactants in the decline of Tyrrhenian coastal vegetation in Italy" ppt

Báo cáo khoa học: Barley polyamine oxidase isoforms 1 and 2, a peculiar case of gene duplication docx

... a role in the regu-lation of polyamine levels in the aleurone cells and in the embryo as well. Indeed, it has been recentlyreported that DNA synthesis early in development and the advance in ... N-terminal signal peptide in HvPAO1indicates the transit of this protein in the secretorypathway, possibly targeting this protein to extracellularcompartment, as in the case of ZmPAO protein. The amino ... polyamine oxidase (PAO), a ﬂavin adenine dinu-cleotide-containing enzyme, catalyzes the oxidation of spermidine (Spd) and spermine (Spm) to 4-aminobut-anal and N-(3-aminopropyl)-4-aminobutanal,...

Báo cáo khoa học: "Semantic Role Labeling: Past, Present and Future" ppt

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Báo cáo khoa học: Death-associated protein kinase (DAPK) and signal transduction: ﬁne-tuning of autophagy in Caenorhabditis elegans homeostasis doc

... mTOR, suggests the pos-sibility that the insulin–AKT–FoxO3 signaling cascademay play more prominent roles in the insulin signaling-dependent regulation of autophagy in C. elegans.Indeed, Jia ... further examination of the vari-ous regulatory pathways is needed, including the com-plex network of multiple autophagy inducing – and inhibiting – signals, and, more importantly, the systemic ... Signalling and auto-phagy regulation in health, aging and disease. MolAspects Med 27, 411–425.52 van der Horst A & Burgering BM (2007) Stressing the role of FoxO proteins in lifespan and...

Báo cáo khoa học: " The role of marine salt and surfactants in the decline of Tyrrhenian coastal vegetation in Italy" ppt

... article The role of marine salt and surfactants in the decline of Tyrrhenian coastal vegetation in ItalyF BussottiP GrossoniF Pantani1 Dept of Plant Biology, Laboratory of Forest ... 1992). The experiments performed confirm that the synergy brought about by the combina-tion of surfactants and sodium chloride is the main cause of the decline of coastal vegetation. ... lessINTRODUCTIONSince the early 1960s the vegetation in a num-ber of coastal areas has been affected by akind of decline which, in terms of both quality and intensity,...

Tài liệu Báo cáo khoa học: A role of miR-27 in the regulation of adipogenesis ppt

... days in the differenti-ation medium: DMEM containing 10% fetal bovine serum and IDM (10 lgÆmL)1insulin, 1 lm dexamethasone, and 0.5 mm IDM). Cells were then maintained in DMEM con-taining ... biologicallyrelevant role of miR-27 in the regulation of adipose tis-sue functions in vivo, we examined the expression of miR-27 in the genetically obese ob ⁄ ob mice. The expression levels of both miR-27a and ... differentiationwas initiated at 48 h post-transfection by maintaining the cells in culture medium containing 2% horse serum. Cells were ﬁxed on day 4 of differentiation and stained with hematoxylin and eosin....

Tài liệu Báo cáo khoa học: A role for the intersubunit disulﬁdes of seminal RNase in the mechanism of its antitumor action docx

... mechanism of antitumouraction of BS-RNase is based on the ability of the proteinto resist the neutralizing action of the cytosolic RNaseinhibitor, a resistance due to the dimeric structure of the enzyme. ... to the surface of SVT2cells and is internalized inside the cells, whilst the MCMmonomer does not bind and is not internalized [11]. Werepeated these experiments with the MSSAE monomer and treated ... devoid of toxicity as native, dimericBS-RNase (data not shown).It is noteworthy that in the inactive MCM, MCA and MAE monomers Cys31 and Cys32, the cysteine residuesoriginally involved in the intersubunit...

Tài liệu Báo cáo khoa học: Key role of the loop connecting the two beta strands of mussel defensin in its antimicrobial activity docx

... moleculecomprising Ôresidues in the protruding domain consisting of the type VI b-turn and the ﬁrst part of b-strand 3Õ (i.e. the b-hairpin loop and part of the adjoining b-sheet) and Ôresidues in the loop ... obtained by other groupswho also point to the role of the connecting loop of the b-hairpin of defensins. A combination of mutationalanalysis [35] and structural analysis of the plant defensinRs-AFP1 ... strictlydependent on the bridging of Cys25 and Cys33 and wasproportional to the theoretical isoelectric point of the pep-tide, as deduced from the variation of activity in a set of peptide analogues of the...

Tài liệu Báo cáo khoa học: Electrostatic role of aromatic ring stacking in the pH-sensitive modulation of a chymotrypsin-type serine protease, Achromobacter protease I pdf

... deviates from the original position. In the struc-tural deviation, the solvent ASA of the side-chain of His210increased with the decrease in size of the side-chain atresidue 169 (Table 1 and Fig. ... effect of the size of the residue at position 169 may berelated to the solvent accessibility of the side-chain of His210 (Fig. 3C). When the accessibility of the side-chain of His210 increased, the ... dependence of the pH-activity curve of API The pH-activity proﬁles depending on NaCl concentrationwere determined as part of the investigation into the shielding from solvent of the electrostatic interactionbetween...

Báo cáo khoa học: Critical role of the plasma membrane for expression of mammalian mitochondrial side chain cleavage activity in yeast pptx

... the ATF2 gene. Therefore, both free pregnenoloneproduction and the efﬁcient coupling of the SCC and the 3b-HSD activities in yeast require the use of strains lackingthis acetylating activity. ... pregnenolone synthesis in recombinant yeast. In conclusion, the SCC reaction appears to be regulatedsimilarlyinyeastandinadrenalcells;inthelatter,Adxpandnot Adrp limits the activity of CYP11A1 and hence ... hydrolysis, resulting in anincrease in intracellular sterol trafﬁcking. It is unclear, then,whether the corresponding increase in pregnenolone pro-duction results from an increase in free sterol...

Báo cáo khoa học: Essential role of the C-terminus in Melanocarpus albomyces laccase for enzyme production, catalytic properties and structure pdf

... ishydrogen-bonded to the side chain of His140, whichis one of the His residues coordinating the T2 copper in the trinuclear center.C-terminal sequencing of the mature MaL showedthat the C-terminus is post-translationally ... expressedboth in yeast and in T. reesei, was practically inactive.Also, the kinetic parameters were altered. The change of only one amino acid in the C-terminus of the lac-case, giving the Tr(L559G) and ... preventing binding of oxygen.We analyzed the azide inhibition and determined the inhibition constants for sodium azide, in order to see the effect of the mutation (L559A) on the bindingproperties...

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