Báo cáo Y học: Structural determination of the O-chain polys

Báo cáo Y học: Structural determination of the O-chain polysaccharide from Agrobacterium tumefaciens, strain DSM 30205 pot

... components of the external membrane of the bacterium, both the proteins and the lipopolysaccharides (LPS) [3]. In the latter case, the interaction is based on the recognition of a portion of the lipopolysaccharide, ... ionizing current of 0.2 mA. Glycosyl-linkage analysis of LPS, was performed accord- ing to the procedure of Sandford [10]. The permethylated l...

Ngày tải lên : 24/03/2014, 04:21

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Báo cáo khoa học: Structural determination of the polar glycoglycerolipids from thermophilic bacteria Meiothermus taiwanensis pdf

... by silica gel G-60 chromatography (EtOAc/ hexanes, 2 : 1) gave the per-acetylated glycosyl glycerol. N-Acetyl glycosyl glycerol. De-O-acetylation was performed on per-acetylated glycosyl glycerol ... chromatography. The fatty acid composition of O-acyl groups in the glycolipids was obtained b y gas chromatography mass spectroscopy analysis on their methyl esters derived from m...

Ngày tải lên : 23/03/2014, 13:20

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Báo cáo Y học: Structural determination of lipid A of the lipopolysaccharide from Pseudomonas reactans A pathogen of cultivated mushrooms doc

... tetracyl species with two acyloxyacyl amides in which the secondary fatty acids are C12:0 (2-OH) or C12:0. Thus, the hydrolysis of only these two primary fatty acids linked as esters allowed the ... acyloxyacyl esters selectively, leaving the acyl and acyloxyacyl amides unaf- fected (work is in progress to show the general applicability of this method). This was particularly use...

Ngày tải lên : 24/03/2014, 00:21

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Tài liệu Báo cáo Y học: Structural determinants of the half-life and cleavage site preference in the autolytic inactivation of chymotrypsin pdf

... used. RESULTS The enzymatic activity and molecular stability of the mutants The catalytic activity and the molecular stability of the mutants were assayed because a change in either of these parameters ... Thus, it is the cleavage of the interdomain loop and not of the autolysis or other loops that determines the half-life of chymotrypsin activity. Keywords: auto...

Ngày tải lên : 22/02/2014, 07:20

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Báo cáo Y học: Structural analysis of the lipopolysaccharide from nontypeable Haemophilus inﬂuenzae strain 1003 potx

... in the DQF-COSY and TOCSY spectra of OS-1 in the region d 2.20–1.66. A s observed earlier [11], several anhydro-forms of K do are formed during the hydrolysis by elimination of phosphate or pyrophosphoethanolamine from ... Computer- assisted structural analysis of polysaccharides with an extended version of CASPER using 1 H- and 13 C-N.M.R. d ata. Carbohydr. Res. 188, 169–...

Ngày tải lên : 31/03/2014, 21:21

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Báo cáo khoa học: Structural studies of the capsular polysaccharide and lipopolysaccharide O-antigen of Aeromonas salmonicida strain 80204-1 produced under in vitro and in vivo growth conditions docx

... studies have determined the structure of the O-chain polysaccharide of A. salmonicida strain SJ-15 [11]. Partial structure of the core oligosaccharide from the same strain of A. salmonicida was ... identity of each fatty acid was established by comparison of its MS with that of the reference compound. The absolute conﬁguration of glycoses was established...

Ngày tải lên : 23/03/2014, 13:20

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Báo cáo Y học: Structural basis for the inhibitory efﬁcacy of efavirenz (DMP-266), MSC194 and PNU142721 towards the HIV-1 RT K103N mutant doc

... are superimposed in the mutant NNIBP. The cyclopropyl- group of MSC194 and the methyl group of PNU142721 partly overlap the triﬂuoromethyl group of Efavirenz. Furthermore, wing2 composed of the heterocyclic ... alue than obtained by others [9]. T his may be due to the use of homopolymeric rC-dG template in the assay. The assay shows that PNU142721 is the most poten...

Ngày tải lên : 18/03/2014, 01:20

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Báo cáo Y học: Structural studies on the core and the O-polysaccharide repeating unit of Pseudomonas aeruginosa immunotype 1 lipopolysaccharide pot

... with the initiation of biosynthesis of the O -polysaccharide of P. aeruginosa O6, which is closely related to immunotype 1, by transfer of D -QuiNAc-1-P to undecaprenyl phosphate followed by synthesis ... position. The site and the conﬁguration of the linkage between the O -polysaccharide and the core and the structure of the O- polysaccharide repeating unit...

Ngày tải lên : 24/03/2014, 03:21

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Báo cáo y học: "Anticancer Activity of the PR Domain of Tumor Suppressor RIZ1"

... progression of cancer; and the second question is whether the PR domain alone possesses anticancer activity. In this study, we quan- titatively analyzed the mRNA expression level of RIZ1 over the ... activity. The PR domain of RIZ1 possessed anticancer activity from the transfec- tion studies. This finding leaves us an important question on the roles the other st...

Ngày tải lên : 25/10/2012, 11:15

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Báo cáo y học: " Experimental ablation of the pancreas with high intensity focused ultrasound (HIFU) in a porcine model"

... and use of laboratory animals from the Ministry of Science and Technology of the People’s Republic of China. Instruments HIFU ablation was performed with a HIFU tumor therapy system (Model ... necrosis of the whole target regions. During the therapeutic process, real-time estimation of the therapeutic effect was carried out by the computer system through the...

Ngày tải lên : 25/10/2012, 11:18

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