Báo cáo khoa học: "Genetics of oak species and the spectre of global climate change" doc

... conserve the genetic resources of oaks and other wildland plants. What has been learnedabout the genetic structure of oak species and gene flow within and among species ... Final addressGenetics of oak species and the spectre of global climate changeFT LedigInstitute of Forest Genetics, Pacific Southwest Research Station, ... closing the IUFRO Symposium on the Genetics of Oak Species, I would liketo draw a connection between what wehave learned about the population biology of oaks and the dilemma...

Tài liệu Báo cáo khoa học: Local stability identiﬁcation and the role of a key aromatic amino acid residue in staphylococcal nuclease refolding pdf

... structure of the protein. Figure 2 shows the fluorescence spectra of wild-type SNase and the fourmutants E142O, K133A, W140A and W140O. The fluorescence spectra of E142O and K133A are similarto that of ... analysis of protein unfolding The DSC curves of the wild-type protein and the mutants K133A, E142O, W140A and W140O areshown in Fig. 3, with their thermodynamic parameterssummarized in Table 1. The ... FEBS of the wild-type protein and K133A and E142O were88.45, 84.70, and 83.60 kcalÆmol)1, respectively. The melting point and DSC profile of E142O (52.8 °C) wasalmost identical with that of the...

Báo cáo khoa học: Interaction between Lim15/Dmc1 and the homologue of the large subunit of CAF-1 – a molecular link between recombination and chromatin assembly during meiosis pot

... double-strand breaks(DSBs). A single-strand overhang is formed by exonu-clease activity and invades the homologous double-stranded region of the other allele. These steps of homology search and ... [8]. The heterodimeric complex of Hop2 and Mnd1 stimulates strand exchange of Lim15/Dmc1[9–11]. The meiosis-speciﬁc proteins Mei5 and Sae3form a complex with Lim15/Dmc1 and are necessaryfor the ... recruited to the site of the Lim15/Dmc1–PCNAcomplex and deposits histone H3 (or a histone vari-ant) and H4 on the naked DNA to restore the nucleosome structure (Fig. 4C). Because of the vari-ous...

Báo cáo khoa học: Local stability identiﬁcation and the role of key acidic amino acid residues in staphylococcal nuclease unfolding ppt

... capacity (DCp) and difference of DCp of mutant from wild-type (%) were determined and the results for the wild-type protein and 20mutants are given in Table 1. The DHcal and Tm of the wild-type ... substitution on the destabilization of secondarystructure that leads to the large perturbation of the stability of the protein tertiary structure (althoughthere is about 7% difference of thermal energy ... the addition of only 2.5 protons (datanot shown). Therefore, we hypothesize that pHunfolding SNase is mainly processed by the addition of 2.5 protons and both E75 and E129 are the targetsof...

Báo cáo khoa học: Hexadecylphosphocholine inhibits phosphatidylcholine biosynthesis and the proliferation of HepG2 cells pot

... interference of HePC on this regulatoryprocess. Thence, HePC could act on CT activity either bypromoting the release of the enzyme from the membrane to the cytosol or by hindering the insertion of the ... HepG2 cells at the level of CTactivity. It interferes with the translocation process of CTfrom the cytosol to the membrane and ﬁnally leads to aninhibition of the biosynthesis of PC, which could ... accumulation of radiolabel in CP and a reduction in the radioactivity associated to CDP–choline,suggesting that some of the enzymes involved in the biosynthesis of PC must be the main target of HePC.Cytosolic...

Báo cáo khoa học: "Variation in leaf morphology and branching pattern of some tropical rain forest species from Guadeloupe (French West Indies) under semi-controlled light conditions" pot

... At the begin-ning of the shading experiment, there were be-tween 30 and 40 plants per species and pertreatment. The number of plants remaining at the end of the experiment ... of species during col-onization of open areas by forest. On the other hand, D excelsa, a final species in the succession, was not branched either.There are thus species- specific ... conditions and decreased as lightintensity diminished. All the species did notMATERIALS AND METHODSDescription of seedlings of species studied The seedlings used for the experiment...

Báo cáo khoa hoc:" A review on SNP and other types of molecular markers and their use in animal genetics" ppt

... parametersindicated, mainly according to the goal of the study and the importance of the species considered. Whatever the project, the higher heterozygosity values of microsatellites will enable to ... reporter and a quencher ﬂuorescent dye. As long as they are linked to the oligonucleotide, the dyes are close together and the ﬂuorescence is quenched.Upon degradation of the probe by the Taq ... from the problem inherent to the use of dominant markers in this latter case, another drawback comes from the factthat no information on the position of the markers on the genome is available.Therefore,...

Tài liệu Báo cáo khoa học: A systems biology approach for the analysis of carbohydrate dynamics during acclimation to low temperature in Arabidopsis thaliana doc

... (black) and sucrose (grey). Doc. S1a. Model structure of C24. Doc. S1b. sbml format of model structure of C24. Doc. S2a. Model structure of Rsch. Doc. S2b. sbml format of model structure of Rsch. Doc. ... interconversion rates as a function of time of cold exposure, (b) comparison of the magnitudes of the various interconversion rates, and (c) lineup of the accessions with respect to their metabolic acclimationstrategies. ... concentration cA(t) and the rate constant k. The model code and a detailed description of the modelstructure are provided in Docs S1a, S1b, S2a,b and S3). The identiﬁcation of unknown parameters...

Tài liệu Báo cáo khoa học: a-Conotoxins as tools for the elucidation of structure and function of neuronal nicotinic acetylcholine receptor subtypes doc

... studies. The highselectivity of the a-conotoxins, together with the possibility of obtaining detailed information on their three dimen-sional structures and the relative ease of synthesis, makesthem ... development of selectivedrugs is the identiﬁcation and pharmacological character-ization of the various receptor subtypes, and the deter-mination of their precise subunit composition and physiological ... domain of each subunit contri-butes to the formation of the hydrophilic pore. ACh binding proteinhas structural and functional homology to the extracellular ligandbinding domain of the nAChR, and...

Tài liệu Báo cáo khoa học: "What lies beneath: Semantic and syntactic analysis of manually reconstructed spontaneous speech" pdf

... insertions751Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 746–754,Suntec, Singapore, 2-7 August 2009.c2009 ACL and AFNLPWhat lies beneath: Semantic and syntactic ... that of Chomskian theory or Harris’s concep-tion of transformation (Harris, 1957). In this view, the original verbatim string is the surface form of the sentence, and as in linguistic theory ... in the example) between the abandonedthought and its replacement,2. Determination that the abandoned portioncontains unique and preservable content and should be made a new sentence rather...

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