Báo cáo khoa học: Kinetics of enzyme acylation and deacylati

Báo cáo khoa học: Kinetics of enzyme acylation and deacylation in the penicillin acylase-catalyzed synthesis of b-lactam antibiotics pptx

... the kinetic constants for hydrolysis and synthesis of penicillin G, ampicillin and cephalexin. Furthermore, insight into the nature of the transition state in the rate-determining steps of the ... Kinetics of enzyme acylation and deacylation in the penicillin acylase-catalyzed synthesis of b-lactam antibiotics Wynand B. L. Alkema, Erik de...

Ngày tải lên : 08/03/2014, 08:20

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Báo cáo khoa học: "Some Comments on Algorithm and Grammar in the Automatic Parsing of Natural Languages" ppt

... written in the form of appropriate tables of rules. The paper raises the question of the increasing complexity of the tables when more than the most elementary natural-language con- ditions are included, ... Examples of this are very common in English and include many of the frequently cited instances of nesting. The second consideration is that the d...

Ngày tải lên : 07/03/2014, 18:20

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Báo cáo khoa học: Accessory proteins functioning selectively and pleiotropically in the biosynthesis of [NiFe] hydrogenases in Thiocapsa roseopersicina docx

... protein, likely to be involved in the processing of the HupL subunit [15]. It is plausible to assume that HynD is involved in the maturation of the HynL protein. Indeed, in the strain harboring the ... acid residues in the truncated HupK originated from the N-terminus, 37 aa from the C-terminus of the protein and 13 aa came from the multiple cloning site...

Ngày tải lên : 31/03/2014, 01:20

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Báo cáo khoa học: "A Tradeoff between Compositionality and Complexity in the Semantics of Dimensional Adjectives" potx

... knowledge base. Thus in the present paper, I investigate the kinds of relations that appear in formal theories of the meanings of the following morphosyntactic con- structions of dimensional adjectives: ... lengths of all of the constraints) * May not terminate if the system is inconsistent tTerminates in arbitrarily long (finite) time if the system is inc...

Ngày tải lên : 01/04/2014, 00:20

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Báo cáo khoa học: Myocyte enhancer factor 2B is involved in the inducible expression of NOX1⁄ NADPH oxidase, a vascular superoxide-producing enzyme ppt

... arrows. (B) The exon ⁄ intron structure of the NOX1 gene and its splicing pathway. Open boxes indicate exons. Numbers in the box denote the size of each exon (bp). The size of the intron is indicated ... affect the mobility of the speciﬁc bands (lane 4, Fig. 4B). These results suggest that PGF 2a increases the binding of MEF2 to the consensus-binding site loc...

Ngày tải lên : 30/03/2014, 03:20

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Tài liệu Báo cáo khoa học: An immunomodulator used to protect young in the pouch of the Tammar wallaby, Macropus eugenii pptx

... eugenin, indicating that eugenin is indeed acting through CCK 2 receptors. To further investigate the interaction of eugenin with CCK 2 receptors, we investigated the effect of eugenin on lymphocyte ... as stimulation of the proliferation of lymphocytes, activation of CCK receptors stimulate production of inter- leukins and secretion of immunoglobulins on the mucos...

Ngày tải lên : 19/02/2014, 16:20

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Tài liệu Báo cáo khoa học: "Using adaptor grammars to identify synergies in the unsupervised acquisition of linguistic structure" docx

... We initialize the sampler by randomly as- signing each string in the training corpus a random tree generated by the grammar. Then we randomly select a string to resample, and sample a parse of ... terminal in the grammar. If A is a terminal then G A is the distribution that puts all of its mass on the unit tree (i.e., tree consisting of a single node) labeled A. If A i...

Ngày tải lên : 20/02/2014, 09:20

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Báo cáo khoa học: Cytosolic phospholipase A2-a and cyclooxygenase-2 localize to intracellular membranes of EA.hy.926 endothelial cells that are distinct from the endoplasmic reticulum and the Golgi apparatus pdf

... structures resembling the Golgi, with very little staining in the region of the nuclear membrane. In addition, a highly punctate staining pattern throughout the cytosol and nucleus of a resting cell ... 0.05% digitonin, very little nuclear staining was evident in resting cells (Fig. 3A). Following stimulation with A23187, the intensity of staining of the nuclear...

Ngày tải lên : 16/03/2014, 18:20

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Báo cáo khoa học: A novel serine protease highly expressed in the pancreas is expressed in various kinds of cancer cells potx

... conﬁrm the expression of prosemin mRNA in some cell lines. A band of the predicted size (500 bp) of the PCR product was observed for most of the cell lines tested, including HPC-YO and HPC-YS, in ... Black bars indicate the enzymatic activity of entero- kinase on the substrate. The closed circles and line indicate prosemin enzyme activity after activation of...

Ngày tải lên : 16/03/2014, 23:20

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Báo cáo khoa học: Factor-inhibiting hypoxia-inducible factor (FIH) catalyses the post-translational hydroxylation of histidinyl residues within ankyrin repeat domains pot

... 239 FIH ). Instead the imidazole ring is sand- wiched between the side chains of His 199 FIH that forms part of the catalytic triad and the aromatic ring of Tyr 102 FIH . The side chain of Gln 239 FIH moves ... that of Asn and Asp hydroxylations. Fig. S6. The presence of b-hydroxyhistidine in the gly- copeptide antibiotic bleomycin. Fig. S7. Biosynthesis of b...

Ngày tải lên : 28/03/2014, 23:20

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