... L.S (1998) Hydrogen exchange and protein folding Curr Opin Struct Biol 8, 112–118 Englander, S.W., Sosnick, T.R., Englander, J.J & Mayne, L (1996) Mechanisms and uses of hydrogen exchange Curr Opin ... provides insight and predictability into classical reaction mechanisms In reactions such as the H• transfer of SLO, TST and attendant tunneling-corrections are inappropriate, and full tunneling ... mechanism of exchange, and many workers consider amide exchange as indicative of protein flexibility rather than dynamics [40–42] NMR techniques are of great use in smaller proteins, and some progress...
Ngày tải lên: 31/03/2014, 23:20
... and bipolar disorder DNA, to exclude participants of non-European ancestry, and the MrOS and SOF participants were all known to be of European ancestry Three AANAT SNPs, rs11077821, rs8150, and ... scores at the time of testing may have suffered episodes of depression in the past Also, many of the Sleep Center patients and all of the MrOS and SOF participants were quite elderly, and it is known ... the half-life of N-acetylserotonin and thereby delay the synthesis and subsequent metabolism of melatonin, thus delaying both the onset and offset of the nocturnal melatonin peak and delaying...
Ngày tải lên: 10/08/2014, 09:20
Báo cáo y học: " Environmental exposures and their genetic or environmental contribution to depression and fatigue: a twin study in Sri Lanka" potx
... history of depression was present in 11.1% of the sample (8.2% of men and 13.6% of women, sex difference: z = 4.98, p < 0.001) Abnormal fatigue was present in 25.3% (21.4% of men and 28.6% of women, ... Page of 10 (standard of living, early school leaving, and life events) were associated with history of depression through the influence of nonshared environments (E) (Table 3, and for a summary of ... events and neglectful/cold parenting were associated with both fatigue and history of depression Aetiology of measured exposures The genetic models for early school leaving, standard of living and...
Ngày tải lên: 11/08/2014, 16:22
Báo cáo y học: "Virus-derived transgenes expressing hairpin RNA give immunity to Tobacco mosaic virus and Cucumber mosaic virus" pdf
... CMV Comparative analysis of the T2 or T4 transgene and the mode of expression in terms of resistance Correlation between the number of transgene insertions and the type of RNA silencing in tobacco ... professor Johansen, Danish Plant and Soil Graduate School) between the PstI and BamHI site The plasmid pSK-In-ΔRep was digested by SalI and BamHI, and inserted into the SalI and BamHI site of ... phenotype of T2, T3 and T4 generation Resistant T lines were randomly selected from each of the six T lines (MP16, MP31, MP39, MP53, Rep15 and Rep17) that generated both resistant and susceptible...
Ngày tải lên: 11/08/2014, 21:22
Báo cáo y học: "Intracellular immunity to HIV-1: newly defined retroviral battles inside infected cells" pdf
... but not from humans and mice) In this drawing, stick figures represent sources of A3 proteins and not targets of infection A3G isoforms from human and non-human primates, and Vif from SIVagm ... mice Of interest, this restriction is saturable with high levels of CA from either virus [21], implying that amounts of Fv1 or its cofactor/s are limiting As described below, one of these cofactors ... Pillai S, Chiles K, Kearney M, Palmer S, Richman D, Coffin JM, Landau NR: Single-strand specificity of APOBEC3G accounts for minus-strand deamination of the HIV genome Nat Struct Mol Biol 2004, 11(5):435-442...
Ngày tải lên: 13/08/2014, 09:21
Báo cáo y học: "Bench-to-bedside review: Rare and common viral infections in the intensive care unit – linking pathophysiology to clinical presentatio" ppt
... and other parts of South America Outbreaks are often cyclical and focal and are affected by weather and climatic variables and the effect this has on rodent populations [104] Page of (page number ... syndrome and shock-inducing mechanisms thought to be due to the release of kinins and cytokines [106,107] The syndrome’s clinical presentation, rapid resolution, and histopathologic findings of interstitial ... in both high-risk and healthy individuals [67,69-71] The combination of pneumonia and ARDS develops in a minority of individuals and usually is associated with conjunctivitis and other extrapulmonary...
Ngày tải lên: 13/08/2014, 11:22
A study of the mechanisms of immunity to pasteurella haemolytica infection
... bacteria of and but 1976) to manner counts invasive was Huggins, and a similar Enumeration Miles, and allowed and against inocula OD Figure Standard A6, Figure A7 and AB against Standard Al, curves of ... haemoiytica P of and group and III group Cross The of resembled 11 Group Jones' I and (The "typical" Pasteurella was has group it is but does not produce reactions of species as classified and and attacks ... also The of P of in spleen investigated little intraperitoneal against protected T10 of 12 or and extracts was -and was liver extracts and strains, investigate days All strains When given and A8,...
Ngày tải lên: 30/09/2015, 05:52
Linking the linguistic to the social
... meanings of grammatical morphemes and of syntactic structure Basically, semantics offers interpretations of morphological and lexical units and of their syntactic combinations In the case of lexical ... particular kind of person; to project an attitude or stance; to affect the flow of talk and ideas And these can involve gender in a myriad of ways Tone and pitch of voice, patterns of intonation ... behaviors to patterns of behavior and from patterns of the behavior of sets of people to generalizations about the underlying character and dispositions of those people and the categories we...
Ngày tải lên: 01/11/2013, 08:20
Tài liệu From Great Depression to Great Credit Crisis: Similarities, Differences and Lessons pdf
... with devaluation in Britain and Japan and the imposition of exchange controls in Germany in the third quarter of that year, and with U.S abandonment of the gold standard some 18 months later ... coefficient of 0.195 in the fifth column implies a multiplier between 1.1 and 2.2, and a multiplier of 1.6 when evaluated at the median values of the ratio of GDP to expenditure, and the growth rates of ... two crises Two things stand out in the comparison of the policy rates of the major central banks in Figure First, the extremely aggressive rate cuts of the Bank of England and the Fed beginning...
Ngày tải lên: 16/02/2014, 03:20
Tài liệu Indigenous Knowledge Local Pathways to Global Development doc
... establishment of own standards of efficacy and efficiency (and in the case of medicine, safety) and agreed protocols for practicing and professional ethics will help to validate and value traditional ... the diversity of crops cultivated reduced the risk of total crop failure and the ample variety of foods enriched the diet Intercropping and land rotation prevented land degradation and increased ... managed and owned Studying, understanding and building on the knowledge of communities will substantially reduce the risk of failures of the development approach and the investments by governments and...
Ngày tải lên: 16/02/2014, 10:20
Tài liệu Báo cáo khoa học: A genetic screen identifies mutations in the yeastWAR1 gene, linking transcription factor phosphorylation to weak-acid stress adaptation docx
... Expression and stability of the wild-type and mutant War1p variants Cultures of the strains YAK111 (WT-3HA), YBB31 (28-3HA), YBB30 (42-3HA) and YPH499 (WT) were grown in YPD to an A600 of and harvested ... obtained from the mutant strains and subjected to DNA sequencing Sequencing of both DNA strands of War1-28 identified an A to T mutation at position 1286, and a change of C to T at position 1288, the ... benzoic and propionic acid [7] and fail to adapt to such stress conditions in the absence of Pdr12p Moreover, recent data indicate the involvement of Pdr12p in the export of by-products of amino-acid...
Ngày tải lên: 19/02/2014, 00:20
Tài liệu Báo cáo khoa học: Photochemical cross-linking of Escherichia coli Fpg protein to DNA duplexes containing pdf
... analyzed by autoradiography and silver staining Equal mobilities of the radioactive and the protein-containing bands indicated covalent attachment of DNA to the enzyme The yield of the photochemical ... residues and nM enzyme The incubation was performed at 37 °C The reaction was stopped by the 7,8 addition of lL of formamide dye to lL of solution The mixture was heated at 90 °C for and loaded ... Results and discussion Design of modified DNA duplexes E coli Fpg protein recognizes a hexanucleotide sequence with oxoG in the middle in the lesion-bearing DNA strand and specifically binds to it and...
Ngày tải lên: 20/02/2014, 11:20
Báo cáo khoa học: Linking environmental carcinogen exposure to TP53 mutations in human tumours using the human TP53 knock-in (Hupki) mouse model doc
... mutated TP53) Further development of the assay to address these shortcomings offers the possibility of wider application of the assay to investigate some of the many outstanding uncertainties about ... types and frequencies of mutations in human tumours [18] TP53 contains 11 exons but most mutations are of the missense type in exons 5–8, which code for the DNA binding domain (DBD) of p53 Of the ... [26,27] Base chemistry and sequence context play a key role in chemical- and UV-induced mutagenesis of TP53 One of the most important influences in the TP53 sequence is the presence of CpG dinucleotides...
Ngày tải lên: 06/03/2014, 11:20
Báo cáo khoa học: Linking pseudouridine synthases to growth, development and cell competition potx
... silencing of an independent gene The two lines, named 34597 and 34598, exhibited a silencing A Fig Structure and expression of mfl-silencing constructs (A) Schematic structure of the four mfl mRNA isoforms ... mRNA (B) Main properties of the 46279 and 46282 transgenic lines, each carrying an independent insertion of the 16822-silencing transgene on chromosome 2, and of the 34597 and 34598 lines, each ... indicated that loss of Mfl can affect both cell size and number The relative contribution of these effects to wing size may depend on the strength of the GAL4 driver and ⁄ or the domain of RNAi expression...
Ngày tải lên: 06/03/2014, 22:21
Báo cáo khoa học: Cotton GhMPK2 is involved in multiple signaling pathways and mediates defense responses to pathogen infection and oxidative stress doc
... more comprehensive understanding of the functional roles and mechanisms of action of GhMPK2 in plant defense As we learn more about MAPKs and their regulation, the design of efficient strategies ... accumulation of ROS may induce the expression of GhMPK2 and lead to the direct or indirect upregulation of antioxidant genes, which will result in the scavenging of excessive ROS and the maintenance of ... tobacco plants (A) Symptoms of the leaves, stems and roots of the tobacco plants inoculated with F oxysporum at 10 days postinoculation (B) Symptoms of the leaves and stems of tobacco plants inoculated...
Ngày tải lên: 14/03/2014, 23:20
Báo cáo Y học: Evaluation of two biosynthetic pathways to d-aminolevulinic acid in Euglena gracilis potx
... from C-4 of ALA (3) Thus, the 13C-enrichment ratio of C-5 of 13C-labeled ALA (3v-7v) takes the value of between 3.7- and 4.1-fold On the basis of relation of the biosynthetic pathways of ALA (3iv-5iv ... presence of tetrahydrofolic acid, and N5,N10-[13C]methylenetetrahydrofolic acid is derived from the 13C-carbon of L-[3-13C]serine and tetrahydrofolic acid N5,N10-[13C]Methylenetetrahydrofolic acid ... s, and the number of scans was 15 000±18 000 The assignments of 13C-NMR signals of chlorophyll a (1) and methyl pheophorbide a (2) were made on the basis of reported data [23±28] Calculation of...
Ngày tải lên: 17/03/2014, 17:20
Báo cáo khoa học: " Linking Events and Relations to Timestamps" pptx
... lower number of event instances, we made use of the annotated event-coreference as a sort of closure to add more instances: if events A and B corefer, and there is a link between A and time expression ... systems achieve F1 score of 0.76 on events and 0.72 on relations, and are effective at the task of temporal linking We developed the models as part of a machine reading system and are currently evaluating ... TempEval-2 data and compare our performance to the participating systems Our work is similar to that of Boguraev and Ando (2005), whose research only deals with temporal links between events and time...
Ngày tải lên: 24/03/2014, 03:20
Báo cáo khoa học: An active triple-catalytic hybrid enzyme engineered by linking cyclo-oxygenase isoform-1 to prostacyclin synthase that can constantly biosynthesize prostacyclin, the vascular protector pot
... a common substrate for downstream synthases, and is isomerized to prostaglandin D2, prostaglandin E2 (PGE2), prostaglandin F2 (PGF2), and prostaglandin I2 (PGI2) or thromboxane A2 (TXA2) by individual ... incubated with 100 lM of collagen (bars and 2) or AA (bars and 4) at 37 °C in the presence of NaCl ⁄ Pi (bars and 3) or HEK293 cells (0.5 · 106) expressing Trip-cat enzyme-1 (bars and 4) Five minutes ... analysis of the profiles of [14C]AA metabolized by platelets in blood in the absence and presence of HEK293 cells [14C]AA (10 lM) was incubated with 100 lL of fresh blood in the absence (A) and the...
Ngày tải lên: 30/03/2014, 02:20
Báo cáo khoa học: The relative contribution of mannose salvage pathways to glycosylation in PMI-deficient mouse embryonic fibroblast cells pdf
... One microgram of linearized plasmid was diluted with 200 lL of Opti-MEM, and then mixed with 200 lL of lipofectamine solution, dissolving lL of Lipofectamine 2000 in Opti-MEM, and transfected ... inhibitor of lysosomal a-mannosidase and of the Golgi complex a-mannosidase II [21] Bafilomycin A1 is a highly specific inhibitor of vacuolar-type H+-ATPase [22], and inhibits acidification and degradation ... conditions were a linear gradient of 70% solvent A and 30% solvent B to 40% solvent A and 60% solvent B over 20 at a flow rate of 0.8 mLÆmin)1, followed by of 40% solvent A and 60% solvent B to 100% solvent...
Ngày tải lên: 30/03/2014, 04:20