3 diagnostic considerations and role of the molecular autopsy
Báo cáo khoa học: Mycobacterium tuberculosis ClpC1 Characterization and role of the N-terminal domain in its function ppt
... proteins were further characterized to compare their biochemical properties and functions The enzymatic activity of the three proteins was assayed at different pH values ClpC1 and the variants were ... activities The larger deletion also rendered the protein more stable In ClpC1D1, the N-terminal repeat II is extended by 40 amino acids of the linker sequence between repeats I and II In ClpC1D2, the ... forms the terminus of the protein It appears that an exposed N-terminal repeat is necessary for the activity of M tuberculosis ClpC1; however, only one of the two repeats is sufficient The ClpC1...
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Báo cáo khoa học: Carbohydrate binding sites in Candida albicans exo-b-1,3-glucanase and the role of the Phe-Phe ‘clamp’ at the active site entrance ppt
... Of these, five are able to interact with the )1 site of the substrate, whereas the other three assist in orienting the two catalytic glutamates [13] This is achieved through extensive intramolecular ... in the presence of two different mechanismbased inhibitors, thereby revealing the close network of interactions that hold the terminal glucose of the bglucan substrate in the )1 subsite at the ... with the protein Two of these water molecules coincide with the C2-OH and C3-OH groups in native Exg, whereas the third occupies the space created by the E292S mutation This situation provides the...
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Báo cáo y học: "Glycogen synthase kinase 3, circadian rhythms, and bipolar disorder: a molecular link in the therapeutic action of lithium" docx
... efficacy in reducing the frequency and severity of recurrent affective episodes, the molecular mechanisms underlying the therapeutic actions of lithium, a hallmark of BPD therapeutics, remain ... [4,5] The identification of the molecular target(s) of mood stabilizers would not only facilitate the development of improved modes of treatment, but also provide a basis for the delineation of the ... involved in the pathophysiology of affective disorders [6] While there are many differences in the molecular and genetic details of the circadian machinery in mammals and Drosophila, the basic...
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báo cáo khoa học: " Globalization and social determinants of health: The role of the global marketplace (part 2 of 3)" ppsx
... In the background is the question of whether such environmental changes and their health impacts should be regarded as normal, in the sense that they are comparable to those undergone by the ... though their trade/ GDP ratios at the end of the study period were lower than the average of all countries studied Conversely, the nonglobalizers started out more highly integrated into the world ... investigation, the analysis of these data by the United Nations Economic Commission on Latin America and the Caribbean (ECLAC) links "the need to participate competitively in the world economy"...
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Báo cáo y học: " The role of the humoral immune response in the molecular evolution of the envelope C2, V3 and C3 regions in chronically HIV-2 infected patients" pdf
... little is known about the role of humoral immunity in the evolution of the HIV-2 env gene In the present study we analyze, for the first time, the molecular evolution of the env C2V3C3 regions ... proportional to the number of sequences The bootstrap values supporting the internal branches are shown The scale bar represents evolutionary distances in substitutions per site The inset contains the subtrees ... all clonal sequences from each time point and rooted with the consensus sequences from other patients Then, assuming a molecular clock, the branch lengths Page of 12 (page number not for citation...
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Tài liệu Báo cáo khoa học: Interaction between very-KIND Ras guanine exchange factor and microtubule-associated protein 2, and its role in dendrite growth – structure and function of the second kinase noncatalytic C-lobe domain docx
... [9] The KIND domain in these proteins is localized to the N-terminal region, and their specific functional domains are located in the C-terminal region The C-lobe of protein kinases mediates the ... Taken together, these data indicate that the direct interaction with the dendritic MAP2 protein is a unique feature of v-KIND KIND2, among the four KIND domains tested Residues 702–745 in the central ... GST-CD2 (Fig S2B) Taken together, these results reveal the specific protein–protein interaction between the v-KIND KIND2 domain and the middle CD region of MAP2 To narrow down the region responsible...
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Tài liệu Báo cáo khoa học: Analysis of the molecular dynamics of medaka nuage proteins by fluorescence correlation spectroscopy and fluorescence recovery after photobleaching doc
... that, in Drosophila, the function of the nuage might be related to the protection of the genome via repression of the selsh genetic elements in the female germ line [3] The nuage is known to ... visualize the localization and to measure the mobility of the components in the PGCs The medaka embryo was peeled off the chorion, and the segment containing the part of PGCs was excised for observation ... adjusted to the uorescence of the GFP fusion proteins almost at the saturation level of the 348 in which Ft is the normalized uorescence at time point t, T0 and Tt represent the uorescence in the whole...
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Tài liệu Báo cáo khoa học: A tyrosinase with an abnormally high tyrosine hydroxylase/dopa oxidase ratio Role of the seventh histidine and accessibility to the active site docx
... is at pH These preferred activities of the two PPOs of R solanacearum are opposite to the names assigned to them when the genome of this bacterium was sequenced and the function of these conceptual ... logical according to the mathematical algorithm used for the blast search Score and e values depend on several factors, but mostly the total length of the sequence used for the blast The shorter sequence ... Accordingly, the amino-acid pair at that position is HH or LH The variant residue determines the putative interaction with the carboxylic group on the side chain of the phenolic substrate, and the affinity...
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Tài liệu Báo cáo khoa học: The role of the ESSS protein in the assembly of a functional and stable mammalian mitochondrial complex I (NADH-ubiquinone oxidoreductase) pptx
... sites for cloning into the unique EcoRI and NheI sites of the modified pTRIDENT-14neo vectors such that either the HA or the HIS epitope tag was added to the end of the ESSS ORF The forward primer ... complex at the position of the histochemical stain in the left panel Antisera against the SDHC subunit of complex II and against the Rieske protein of complex III revealed the presence of these complexes ... and the effect of the absence of intact complex I, but the results are too preliminary in this regard Heterologous expression of the ESSS-HA subunit The localization of the ESSS subunit in the...
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Tài liệu Báo cáo khoa học: The role of the SEA (sea urchin sperm protein, enterokinase and agrin) module in cleavage of membrane-tethered mucins pdf
... another mucin The cleavage is apparently more efficient in the hybrid mucins carrying the whole SEA domains rather than the 33 amino acid fragments encompassing the G ⁄ SIVV motif alone as the ... domain in the processing of membrane-tethered mucins The mechanism by which the heavily glycosylated portion of these molecules is released at epithelial surfaces within the airway, the intestine ... side of the loop, faces solvent and its mutation to alanine has little if any effect on the cleavage event On the other side of the loop, the valine residue (V189) that interacts only with the C-terminal...
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Tài liệu Báo cáo Y học: Steady-state kinetics of the glutaminase reaction of CTP synthase from Lactococcus lactis The role of the allosteric activator GTP in coupling between glutamine hydrolysis and CTP synthesis potx
... locks the enzyme in the active form for CTP synthesis and thereby stimulates the kcat of the reaction Since GTP actually will activate the uncoupled glutaminase reaction the structure of the monomer ... similar to that of the overall CTP synthesis reaction It was concluded that the effect of GTP was mainly to enhance the rate of chemical steps of the glutaminase reaction The nding that the kcat value ... to the subsequent injections Dividing the power with the molar reaction enthalpy gives the steady-state rate The assay conditions were as described above for the spectrophotometric assays The...
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The Role of the Media in Promoting and Reducing Tobacco Use doc
... product of the mass media era; the art and science of mass communications and mass marketing were critical to the growth of tobacco use in the past century At the same time, however, the media ... such as the Internet, text messaging, and interactive gaming As mass communications have Monograph 19 The Role of the Media bridged societies around the world, they have also magnified the impact ... of the world’s current inhabitants are predicted to lose their lives to tobacco use,12,13 underscoring the urgency of examining the media’s role in global tobacco marketing At the same time, the...
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Báo cáo khoa học: Role of the C-terminal extension in a bacterial tyrosinase Michael Fairhead and Linda Thony-Meyer doc
... be determined whether this is also the case for other pro-tyrosinase forms Stability of the tyrosinase forms to chemical denaturation To characterize the domain structure of the V spinosum tyrosinase ... thus, the apparent shapes of the unfolding curves should not be over interpreted The use of the concentration of GdnCl at 50% unfolded as a simple measure of the change in stability between the ... spectrum, whereas the F453A mutant, similar to the recombinant core tyrosinase, readily formed this complex (Fig S4) These results suggest that the Phe453 residue is in the close vicinity of the enzyme...
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Báo cáo khoa học: Studies on the role of the receptor protein motifs possibly involved in electrostatic interactions on the dopamine D1 and D2 receptor oligomerization pdf
... result from the different localization of these proteins in the cell The molecular mechanisms underlying the transport processes of GPCRs from the ER to the cell surface have recently become the subject ... that the mutation in the C-tail of the D1 receptor did not change the localization of the receptor because both wild-type D1 and the mutant were localized in the cell membrane However, the D2 ... attached to the D1 receptor with and without YFP attached to the D1MUT receptor The black dotted curve shows the intensity decay of the donor alone (D), and the dark gray dotted curve shows the intensity...
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Báo cáo khoa học: Investigating the role of the invariant carboxylate residues E552 and E1197 in the catalytic activity of Abcb1a (mouse Mdr3) docx
... together, or in combination with other mutations, have suggested that they are not classical catalytic residues, because cleavage of the c-phosphate does occur in the NBD with the mutation at the ... motifs: the Walker A and B motifs, the signature or LSGGQ motif and the A-, D-, H- and Q-loops These motifs are positioned around the bound nucleotide and help to position and maintain it in the ... signature sequence contacts the c-phosphate of the bound nucleotide across the dimer [15] and the aromatic residue of the A-loop Abcb1a catalytic mechanism stacks against the adenine moiety of bound...
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Báo cáo khoa học: The essential tyrosine-containing loop conformation and the role of the C-terminal multi-helix region in eukaryotic phenylalanine ammonia-lyases docx
... that, for the catalysis, only the core HAL ⁄ PAL motif region is required, and the other extended parts serve other (e.g regulatory) functions Therefore the two bacterial PALs in which the extended ... A apart from the exocyclic methylene C-atom of the MIO prosthetic group On the basis of the experimental structures, hypotheses on the role of the Tyr110-loop have been put forward One group ... in the biosynthesis of the photoactive yellow protein chromophore of these bacteria The two recently discovered aminomutases, the phenylalanine 2,3-aminomutase (PAM) involved in taxol biosynthesis...
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The History of The Decline and Fall of the Roman Empire Vol. 3 pot
... governed by the clergy of Rome and the monks of the East The edifying example of the Anician family was soon imitated by the rest of the nobility: the Bassi, the Paullini, the Gracchi, embraced the Christian ... they complained of the weight of the armor, which they seldom wore; and they successively obtained the permission of laying aside both their cuirasses and their helmets The heavy weapons of their ... discipline of the apostles, and the doctrine of the gospel, let us believe the sole deity of the Father, the Son, and the Holy Ghost; under an equal majesty, and a pious Trinity We authorize the followers...
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Báo cáo Y học: Role of conserved residues within helices IV and VIII of the oxaloacetate decarboxylase b subunit in the energy coupling mechanism of the Na+ pump ppt
... pH The different mutants are indicated in the box on the top right The scale for the velocity of the mutants is indicated on the left side and that for the wild-type enzyme on the right side The ... still bind to the N373L mutant through coordination to the other ligands of the binding site (center I), but the binding becomes much weaker as emphasized by the dramatic increase of the Na+ ion ... in the presence of 360 mM NaCl The most dramatic effect of the R389A mutant is a shift of the pH optimum by more than 2.5 pH units to the alkaline compared to the wild-type This shift in the...
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Báo cáo khoa học: Essential role of the C-terminus in Melanocarpus albomyces laccase for enzyme production, catalytic properties and structure pdf
... 5B) Owing to the lower steric limitations of the side chain of the Ala than of the Leu, water may occupy the space Furthermore, the side chain of His140, which is coordinated to the T3 copper, ... chloride ion and probably also the T2 copper, as the B-value of the T2 copper was rather high On the basis of the anomalous signal, the estimated occupancy of the T2 copper was about 0.5 T2 copper ... amino acid in the C-terminus of the laccase, giving the Tr(L559G) and Sc(L559A) mutants, reduced the turnover of the mutant proteins For the substrate ABTS, the Michaelis constant of the Sc(L559A)...
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Báo cáo khoa học: Isothermal unfolding studies on the apo and holo forms of Plasmodium falciparum acyl carrier protein Role of the 4¢-phosphopantetheine group in the stability of the holo form of Plasmodium falciparum acyl carrier protein docx
... in the case of the holoprotein as compared to the apoprotein Similarly, the Cm of the holo form always lies above the apo form at all temperatures at which the experiments were conducted The ... are comparable, the Tg values of the proteins vary slightly; there is a difference of almost C between the Tg values of the proteins, the value being higher for the holo form There have been ... between the two proteins (as indicated by the values of DGwater, Cm and Tg) hence arise from the changes in the surface of the protein because of the interactions of the cofactor with the protein...
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