Báo cáo khoa học: New evidence for the role of calcium in the glycosidase reaction of GH43 arabinanases pot

Báo cáo khoa học: New evidence for the role of calcium in the glycosidase reaction of GH43 arabinanases pot

Báo cáo khoa học: New evidence for the role of calcium in the glycosidase reaction of GH43 arabinanases pot

... for the optimal activity of BsArb43B. Furthermore, to determine whether the role of the calcium is structural, thermal shift assays were per- formed to determine the T m of the protein in the ... optimizing binding of the carbohydrate chain in the cleft, and resulting in trioses as products. These observations suggest that, by blocking one of the ends...
Ngày tải lên : 15/03/2014, 23:20
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Báo cáo khoa học: No evidence for a role in signal-transduction of Na+/K+-ATPase interaction with putative endogenous ouabain potx

Báo cáo khoa học: No evidence for a role in signal-transduction of Na+/K+-ATPase interaction with putative endogenous ouabain potx

... doi:10.1046/j.1432-1033.2003.03554.x hypothetical cascade of events initiated by ouabain occu- pancy of a small fraction of the sodium pumps. One of them had advocated the role of EDLF for years [15]. Possible pitfalls for a ... general rule is the almost ouabain-insensitive a 1 -isoform seen in rats ( [for references, see [18]). In most tissues in the rat, howe...
Ngày tải lên : 23/03/2014, 17:21
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Báo cáo khoa học: Structural evidence for a constant c11 ring stoichiometry in the sodium F-ATP synthase doc

Báo cáo khoa học: Structural evidence for a constant c11 ring stoichiometry in the sodium F-ATP synthase doc

... c 10 complex in the recombinant c ring preparations suggests that the insertion of the last c subunit forms the limiting step in the assembly process of a functional oligomer. Upon closer inspection, the ... to clarify whether the stoichiometry of the c rings is in uenced by variation of the expression level of subunit c. In the present study we investigat...
Ngày tải lên : 07/03/2014, 21:20
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Báo cáo khoa học: Biochemical evidence for conformational changes in the cross-talk between adenylation and peptidyl-carrier protein domains of nonribosomal peptide synthetases ppt

Báo cáo khoa học: Biochemical evidence for conformational changes in the cross-talk between adenylation and peptidyl-carrier protein domains of nonribosomal peptide synthetases ppt

... that the 4¢-phosphopantetheine moiety of the peptidyl carrier protein changes its position as a result of a conformational change in the A domain, which is induced by the binding of an amino acyl ... phenylalanine are not suitable because their use would lead to the formation of the amino acyl thioester on the Ppant of the PCP domain and prime the enzyme for t...
Ngày tải lên : 29/03/2014, 08:20
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Báo cáo khóa học: FRET evidence for a conformational change in TFIIB upon TBP-DNA binding pptx

Báo cáo khóa học: FRET evidence for a conformational change in TFIIB upon TBP-DNA binding pptx

... 0.01). TBP-promoter induced conformational change in CYIIB We then examined the effect of TBP–AdML binding on the FRET efficiency observed for CYIIB (Fig. 3A). The ratio of the intensity between the peak of 526 ... accelerates the formation of a TFIIB–TBP–DNA complex To gain insight into the kinetics of the TFIIB–TBP– promoter complex formation, we investigated t...
Ngày tải lên : 07/03/2014, 15:20
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Báo cáo khoa học: " New Models for Improving Supertag Disambiguation" pdf

Báo cáo khoa học: " New Models for Improving Supertag Disambiguation" pdf

... parallel corpus of two languages and al- most parse information for the sentences of one of the languages, one can rapidly develop a gram- mar for the other language using supertagging, as suggested ... For example, in the sentence "Many Indians ]eared their country might split again" the pres- ence of might influences the choice of the supe...
Ngày tải lên : 08/03/2014, 21:20
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Báo cáo khoa học: "Ranking Algorithms for Named–Entity Extraction: Boosting and the Voted Perceptron" pdf

Báo cáo khoa học: "Ranking Algorithms for Named–Entity Extraction: Boosting and the Voted Perceptron" pdf

... ap- peal of these methods is that their training criterion is often discriminative, attempting to explicitly push the score or probability of the correct structure for each training sentence above the ... split into 5 sections, and in each case the maximum-entropy tagger was trained on 4/5 of the data, then used to decode the remaining 1/5. The top 20 hypotheses under...
Ngày tải lên : 17/03/2014, 08:20
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Báo cáo khoa học: A novel factor XI missense mutation (Val371Ile) in the activation loop is responsible for a case of mild type II factor XI deficiency doc

Báo cáo khoa học: A novel factor XI missense mutation (Val371Ile) in the activation loop is responsible for a case of mild type II factor XI deficiency doc

... explained by the proximity of the mutation to the cleavage site, probably resulting in a small interference with the binding of the activator to the FXI zymogen. There are some examples of inherited ... (1993) The linkage between binding of the C-terminal domain of hirudin and amidase activity in human alpha-throm- bin. Biochem J 289, 475–480. 45 Baglia FA &...
Ngày tải lên : 23/03/2014, 07:20
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Tài liệu Báo cáo khoa học: "A Tool for Multi-Word Expression Extraction in Modern Greek Using Syntactic Parsing" pdf

Tài liệu Báo cáo khoa học: "A Tool for Multi-Word Expression Extraction in Modern Greek Using Syntactic Parsing" pdf

... Currently, there are approximately 60 grammar rules defined for Greek, allowing for the complete parse of about 50% of the sentences in a corpus like Europarl (Koehn, 2005), which contains proceedings of the ... contains proceedings of the European Parliament. For the remaining sen- tences, partial analyses are instead proposed for the chunks identified. One of...
Ngày tải lên : 22/02/2014, 02:20
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Báo cáo khoa học: Relationship between functional activity and protein stability in the presence of all classes of stabilizing osmolytes ppt

Báo cáo khoa học: Relationship between functional activity and protein stability in the presence of all classes of stabilizing osmolytes ppt

... leading to the preferential hydration of the protein domain is the driving force of protein stabiliza- tion or folding [3,4]. Furthermore, the effect of osmolytes on the functional activity of ... DG D ° values in the presence of these osmolytes are given in Table 1. How- ever, DG D ° values of RNase-A in the presence of alanine, serine, lysine, b-alanine, ta...
Ngày tải lên : 07/03/2014, 00:20
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