Báo cáo khoa học: Amino acid limitation regulates the expres

Báo cáo khoa học: Amino acid limitation regulates the expression of genes involved in several speciﬁc biological processes through GCN2-dependent and GCN2-independent pathways ppt

... devoid of a given essential amino acid. Our data suggest that the GCN2 pathway is directly involved in the regulation of amino acid and protein metabolism, as many of the genes involved in these processes ... that the mecha- nism underlying the recognition of protein quality acts through the sensing of free circulating amino acids resulting from...

Ngày tải lên : 07/03/2014, 03:20

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Tài liệu Báo cáo khoa học: Amino acid discrimination by arginyl-tRNA synthetases as revealed by an examination of natural speciﬁcity variants doc

... FEBS bean and soybean. When binding of arginine in the presence of tRNA was investigated, some changes in the binding architecture were observed [35], in that N(153:Y), in addition to interacting with ... signiﬁcantly. In contrast to l-canavanine, it is the bridging N of the guanidine group that is replaced by the heteroatom in l-thioarginine, locking the guani...

Ngày tải lên : 18/02/2014, 13:20

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Tài liệu Báo cáo khoa học: Fatty acid desaturases from the microalga Thalassiosira pseudonana pptx

... genes involved in PUFA biosynthesis follow- ing the completion of the genome sequence of the EPA and DHA producing diatom T. pseudonana [17]. Levels of EPA and DHA in this organism are in the range ... encodes a protein of 474 amino acids. Alignment with the corresponding genomic sequence conﬁrmed the presence of a 99 bp intron in the TpdesO gene. Th...

Ngày tải lên : 20/02/2014, 01:20

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Tài liệu Báo cáo khoa học: Chemical approaches to mapping the function of post-translational modiﬁcations ppt

... matter of hours. As a demonstration of the biological relevance, this methodology was used to model the P-selectin-binding domain of the mucin-like glycoprotein PSGL-1 [73,74]. This ligand is involved ... in ammation in mammalian brain tissue both in vitro and in vivo, including in the detection of cerebral malaria. Retooling of this reporter system also allow...

Ngày tải lên : 18/02/2014, 17:20

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Tài liệu Báo cáo khoa học: "An API for Measuring the Relatedness of Words in Wikipedia" docx

... calling Perl routines from the Java API. Perl routines take care of the bulk of querying ency- clopedia entries to the MediaWiki software (which in turn queries the database) and efﬁciently parsing the ... based on the link structure of the articles); 3. computing paths in the Wikipedia categoriza- tion graph between the categories the articles are assigned to;...

Ngày tải lên : 20/02/2014, 12:20

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Tài liệu Báo cáo khoa học: "A Practical Solution to the Problem of Automatic Word Sense Induction" doc

... that these vectors reflect the sum of the contextual behavior of a word’s underlying senses, i.e. they are mixtures of all senses occur- ring in the corpus. However, since reconstructing the ... mixtures of all its senses. Inducing a word’s senses therefore involves the difficult problem of recovering the sense vectors from the mixtures. In this paper we argue...

Ngày tải lên : 20/02/2014, 16:20

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Tài liệu Báo cáo khoa học: "UNDERSTANDING NATURAL LANGUAGE INSTRUCTIONS: THE CASE OF PURPOSE CLAUSES" doc

... occur- rence of/ L In the case of the generation relation between flipping the switch and turning on the light, C will include that the wire, the switch and the bulb are working. Although ... that the generatee affects the execution of the generator, so the enabled action affects the execution of the enabling action. Consider the difference in...

Ngày tải lên : 20/02/2014, 21:20

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Tài liệu Báo cáo khoa học: "HOW DO WE COUNT? THE PROBLEM OF TAGGING PHRASAL VERBS IN PARTS" docx

... assignment. In the case of to gun down the ambiguity of to is enhanced by the ambiguity of gun, and a mistake in tagging gun will automatically lead to an incorrect tagging of to as ... between the verb and the particle in order to optimize the perfor- mance of the tagger. 3. THE EXPERIMENT 3.1. DATA The first step in testing this hypothesis...

Ngày tải lên : 20/02/2014, 21:20

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Tài liệu Báo cáo khoa học: "Incorporating Context Information for the Extraction of Terms" pdf

... terms of number of words, f(a) the frequency of a in the corpus, Ta the set of candidate terms that contain a, P(T~) the number of these candidate terms. At this point the incorporation of the ... these strings, C-value is calculated resulting in a list of candidate terms (ranked by C- value as their likelihood of being terms). The length of the...

Ngày tải lên : 22/02/2014, 03:20

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Báo cáo khoa học: A novel prokaryotic L-arginine:glycine amidinotransferase is involved in cylindrospermopsin biosynthesis potx

... by the binding of ornithine. The loca- tion of the common intercept in mixed-type inhibition systems depends on the actual and relative values of a and b. An intercept in the upper right-hand ... (formation of an enzyme–amidino interme- diate and release of ornithine in the absence of glycine), product formation by CyrA was investigated in the presence...

Ngày tải lên : 06/03/2014, 22:21

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