... peptide. Shown are the summed peak areas P (total area of f + s peaks) divided by the marker peak area M at different time points as a percentage of the initial value of P ⁄ M at the onset of the experiments ... heterogeneity. The proton chemical shifts of the alternative conformer (I 2 ) of cK58-b2m are compared with the corresponding values of the nat- ively folded form of cK58-b2m in the graph. The two conformers ... doubling at the loca- tions and to the extent reported in Fig. 9. The features of the pattern of the second conformer resemble the features of a minor monomeric intermediate occurring along the b2m-refolding...
Ngày tải lên: 23/03/2014, 11:20
Ngày tải lên: 26/11/2013, 12:41
A study of semantic and pragmatic features of the adjective warm and its vietnamese equivalents
Ngày tải lên: 26/11/2013, 13:21
A discourse anslysis of the linguistic features of the advertisements of food and drink in english versus vietnamese
Ngày tải lên: 26/11/2013, 13:27
A contrastive analysis of linguistic features of the adjective black in english and đen in vietnamese
Ngày tải lên: 26/11/2013, 13:29
A contrastive analysis of semantic and pragmatic features of the words denoting birds in english and vietnamese
Ngày tải lên: 26/11/2013, 13:30
Tài liệu Báo cáo Y học: Proteolysis of bovine b-lactoglobulin during thermal treatment in subdenaturing conditions highlights some structural features of the temperature-modified protein and yields fragments with low immunoreactivity pptx
... pressure [10]. Arg148 is not the only buried arginine in the structure of BLG. The whole side chain of Arg40 (the other main point of trypsin action) in the native structure of the protein is deeply ... ratio enzyme/BLG of 1 : 20 or of 1 : 10. The protein/protease mixture was then placed in a thermostatted water b ath for the required amount of time. At the end of the heat treatment the mixtures were placed ... are disrupted when the temperature is raised, so that the BLG dimer may dissociate [8,9], therefore exposing the polypep- tide backbone to the action of trypsin. The nature of the interactions...
Ngày tải lên: 21/02/2014, 15:20
Báo cáo khoa học: Assignment of the [4Fe-4S] clusters of Ech hydrogenase from Methanosarcina barkeri to individual subunits via the characterization of site-directed mutants pdf
... 15 K a twofold splitting of the Ni a –L signal was observed due to the interaction of the Ni-based unpaired electron with the S ẳ ẵ system of the reduced proximal [4Fe -4S] cluster. The temperature dependence ... motifs for [4Fe -4S] centres. The characteriza- tion of these clusters has been an important issue in the complex I field in the recent years. In NuoB (the homo- logue of EchC) three of the four Cys ... temperature dependence of the splitting of the Ni a –L signal paral- leled the temperature dependence of the g ẳ 1.89 sig- nal. It was therefore tentatively concluded that the g ẳ 1.89 signal is due to the reduced...
Ngày tải lên: 07/03/2014, 21:20
Báo cáo khoa học: Unique features of the hemoglobin system of the Antarctic notothenioid fish Gobionotothen gibberifrons ppt
... 4,14]. The two Hbs have the b-chain in common, with the exception of those of Cygnodraco mawsoni [15] which share the a-chain. Therefore, Nototheniidae (and all Notothe- nioidei) are generally characterized ... acuticeps and C. mawsoni). However, the lack of a clear relationship with the Hb sequences of other nototheniid species suggests that in this case the evolution of the oxygen-transport system has occurred ... Fishes of the Southern Ocean. Smith Institute of Ichthyology, South Africa. 21. Balushkin, A.V. (1992) Classification, phylogenetic relationships, and origins of the families of the suborder Notothenioidei (Perciformes)....
Ngày tải lên: 08/03/2014, 08:20
Báo cáo khoa học: Enzymatic features of the glucose metabolism in tumor cells ppt
... is capable of reducing the level of fructose 2,6-P 2 inde- pendent of the phosphorylation state of iPFK-2. Reducing the level of fructose 2,6-P 2 and thus the activity of PFK-1 improves the supply of ... changing the activity of the enzyme by x% results in a significant change of the pathway flux by at least 0.5x% (whether 0.5x% or higher is a matter of convention). The way that the change of enzyme ... that the key for understanding the exceptional way of glucose utilization in tumors is less the expression level of metabolic enzymes as such, but rather the unique pattern of isoenzymes, the...
Ngày tải lên: 14/03/2014, 23:20
Báo cáo khoa học: Mercury(II) binding to metallothioneins Variables governing the formation and structural features of the mammalian Hg-MT species pptx
... that the stoichiometries of the Hg-bMT species become dependent on t and X after t he forma tion of Hg 7 -bMT. Comparison of the three sets of CD data indicates that the degree of chirality of the ... and reforming of the metal-sulfur bonds are well documented for t he group 12 metal thiolates in solution [26]. On the other hand, the mechanism involved in the binding of Table 1. Influence of the reaction ... stereo- chemistry and degree of folding of the species formed. Thus, to understand the reaction pathways followed by Zn-MT and apo-MT species in the presence of Hg(II), the e ffect of each of the previous variables...
Ngày tải lên: 16/03/2014, 18:20
Báo cáo y học: "Correlation of the Radiographic and Morphological Features of the Dental Follicle of Third Molars with Incomplete Root Formation" ppsx
... and the more intra-osseous the tooth, the less the inflammation. The presence of inflammation increased with the progression of the rhizogenesis, and this may be due to the physiology of eruption ... that in 4.8% of the follicles the following changes occurred that deviated from the pattern of normality: proliferative sheets and layers of epithelium; islands of epithelium in the connective ... epithelium in the connective tissue in 79% of the cases studied and foci of squamous metaplasia in the remnants of epithelium in 4% of the sample. The presence of islands with an ameloblastomatoid...
Ngày tải lên: 08/08/2014, 16:23
Báo cáo khoa hoc:"Comparative analysis on the structural features of the 5 flanking region of κ-casein genes from six different species" pot
... described in the first and fourth introns of the rabbit κ-casein gene [10]. Therefore, the lack of the two ruminant repetitive elements in the other three species and the lack of the L1PA2 insertion in the ... [5]. In spite of the import- ance of κ-casein in the assembly and stability of casein micelles, a detailed analysis of its regulation and comparison with the structural features of the most studied ... throughout the completed aligned promoter region. At these boxes the homology is either absolute between the sequences, or there are only two types of nucleotides occurring in a given position. The...
Ngày tải lên: 09/08/2014, 18:21
Báo cáo y học: "Immunostaining of modified histones defines high-level features of the human metaphase epigenome" potx
... clusters and their control elements. A crucial question is whether the bands have any functional significance in their own right, or whether they passively reflect the net level of histone modification ... counterstained with DAPI (pseudocolored red). Note the extensive, patchy staining of the interphase nucleus on the right. The arms of the Y chromosome (indicated) are labeled but its centric heterochromatin ... Immunolabeling of metaphase chromosome spreads can map components of the human epigenome at the single cell level. Previously, there has been no systematic attempt to explore the potential of this approach...
Ngày tải lên: 09/08/2014, 22:23
Báo cáo y học: ": Immunostaining of modified histones defines high-level features of the human metaphase epigenome" pot
Ngày tải lên: 09/08/2014, 22:23
Báo cáo y học: " Ancient, independent evolution and distinct molecular features of the novel human T-lymphotropic virus type 4" pot
Ngày tải lên: 13/08/2014, 05:21
267. How Sigmund Freud Changed What People Thought of the Mind potx
Ngày tải lên: 14/08/2014, 21:21
Safeguarding Public and Environmental Health: What are the Necessary Requirements of UV Reactor Validation Protocols?
Ngày tải lên: 05/09/2013, 09:08
What are the advantages and disadvantages of supermarkets
... shops may be the only source of living of then. To conclude I would like to express my opinion which rather possitive. I think that supermarkets are great creatures and the more of them the better. ... things they do not actually need. For many of us the major disadvantage of shopping in supermarkets id that it is time consuming and it takes a while to getthere and back. Big stores are also ... you are given a new one or your money back. Not to forget about sales and special offers such as "buy one get one free" or "two for the pirce of one" are always found there. One...
Ngày tải lên: 23/10/2013, 02:15