Tài liệu Báo cáo Y học: Antimicrobial dendrimeric peptides p

Tài liệu Báo cáo Y học: Antimicrobial dendrimeric peptides pot

... 50% hemolysis; Fmoc, 9-ﬂuorenylmethyloxycarbonyl; Fmoc-DPA, p-(R,S)-a-[1-(9H-ﬂuoren-9-yl)methoxyformamide]-2,4-dimethoxy- benzylphenoxyacetic acid; HOBt, N-hydroxybenzotriazole; LPS, lipoplysaccharide; ... quantitatively induced erythrocytes aggregations. Proteolytic stability The proteolytic stability of d endrimeric peptides to trypsin and chymotrypsin was determined using peptide and enz...

Ngày tải lên : 22/02/2014, 04:20

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Tài liệu Báo cáo Y học: The effects of ring-size analogs of the antimicrobial peptide gramicidin S on phospholipid bilayer model membranes and on the growth of Acholeplasma laidlawii B ppt

... composed of dimyristoylglycerophosphocholine (Myr 2 Gro-PCho), dimyristoylglycerophosphoethanolamine (Myr 2 Gro-PEtn) and dimyristoylglycerophosphoglycerol (Myr 2 Gro-PGro) by DSC, in order ... Myr 2 Gro-PCho, dimyristoylglycerophosphocholine; Myr 2 Gro-PEtn, dimyristoylglycerophosphoethanolamine; Myr 2 Gro-PGro, dimyristoylglycerophosphoglycerol; DSC, diﬀerential scanning calorimetry; L a...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo khoa học: Antimicrobial effects of H4-(86–100), histogranin and related compounds – possible involvement of DNA gyrase ppt

... their antimicrobial activity, as its replacement by Gly in HNb is most likely responsible for its relatively low potency (LD 50 : 88.3 lgÆmL )1 ). Interestingly, the antimicrobial potency of HNb ... parent peptides. Among various HN-like compounds, cyclo- (-Gly-pCl-Phe-Tyr-d-Arg) (compound 3) and N-5-guanidino pentanamide- (2R)-yl-2-N-(p-hydroxyphenylacetyl)-4-(p-chlorobenzoyl)-phenylene...

Ngày tải lên : 18/02/2014, 14:20

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Tài liệu Báo cáo Y học: Ligand interactions and protein conformational changes of phosphopyridoxyl-labeled Escherichia coli phosphoenol pyruvate carboxykinase determined by ﬂuorescence spectroscopy pdf

... changes; P-pyridoxyl ﬂuorescence spectroscopy. Escherichia coli phosphoenolpyruvate carboxykinase [PEP carboxykinase; ATP:oxaloacetate carboxylase (trans-phos- phorylating) EC 4.1.1.49] catalyzes the ... the P-pyridoxyl-E. coli PEP carboxykinase adduct. N e from Lys288 of the open structure of E. coli PEP carboxykinase (1OEN) is covalently linked to the carbonyl carbon of the P-pyridoxyl gr...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo Y học: The glucose-speciﬁc carrier of the Escherichia coli phosphotransferase system Synthesis of selective inhibitors and inactivation studies pptx

... stereoselective synthesis of enantiomerically pure mono- and di-O-hexadecyl-b- D -glucosylglycerol ethers by epoxidation of an allyl b- D -glucopyranoside asymmetrically induced by the glucide moiety. Tetrahedron: ... Methyl 2,3-anhydro-a- D -allopyr- anoside (2a) and methyl 3,4-anhydro-a- D -galactopyrano- side (2b) were obtained by desilylation of 1 mmol of the 6-O-[dimethyl-(1,1,2-trimethy...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo Y học: Dnmt3a and Dnmt1 functionally cooperate during de novo methylation of DNA pdf

... groups are always introduced, one slowly by Dnmt3a or by de novo methylation catalyzed by Dnmt1 and the second one very fast. Therefore, this effect can only double the rate of DNA methylation, because every ... shown that DNA methylation is an absolutely essential process in mammals during late embryogenesis [6,7]. The methylation pattern is created by de novo methylation and demethyla- tion...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo Y học: The b-1,4-endogalactanase A gene from Aspergillus niger is speciﬁcally induced on arabinose and galacturonic acid and plays an important role in the degradation of pectic hairy regions pdf

... corresponding enzymes have been assigned to family 53 of the glycosyl hydrolases [16]. These enzymes have a retaining mechanism and for the Pseudo- monas ﬂuorescens b-1,4-endogalactanase the catalytic resi- dues ... substrate speciﬁcity of the enzyme. The degradation of the polymer and subsequent oligosaccharide formation was analyzed by HPAEC and MALDI-TOF MS. HPAEC analysis demon- strated t...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo Y học: Thermostability of manganese- and iron-superoxide dismutases from Escherichia coli is determined by the characteristic position of a glutamine residue pdf

... Pseu- domonas ovalis. Acta Crystallogr. D Biol. Crystallogr. 56, 1359– 1366. 19. Lim, J.H., Yu, Y. G., Han, Y. S., Cho, S., Ahn, B .Y. , Kim, S.H. & Cho, Y. (1997) The crystal structure of an Fe-superoxide ... New York, USA. Oligonucleotide synthesis Oligonucleotides were synthesized on an Applied Biosys- tems model 392 DNA synthesizer and puriﬁed by prepar- ative gel electrophoresis i...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo Y học: The structures of the lipooligosaccharide and capsule polysaccharide of Campylobacter jejuni genome sequenced strain NCTC 11168 pdf

... Hisatsune,K.,Kondo,S.,Isshiki ,Y. ,Iguchi,T.&Haishima ,Y. (1993) Occurrence of 2-O-methyl-N-(3-deoxy- L -glycero-tetronyl)- D -perosamine (4-amino-4,6-dideoxy- D -manno-pyranose) in lipo- polysaccharide from ... A.M., Wu, Y. , Young, N.M. & Wakarchuk, W.W. (2000) Biosynthesis of ganglioside mimics in Campylobacter jejuni OH4384. Identiﬁcation of the glycosyltransferase genes, enzyma...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo Y học: Soluble silk-like organic matrix in the nacreous layer of the bivalve Pinctada maxima A new insight in the biomineralization ﬁeld pptx

... Proline, hydroxyproline and hydroxylysine were examined at 254 nm by reverse-phase HPLC of their phenylisothiocarbamate derivatives [26], as reported previously [20]. The serine, threonine and tyrosine contents ... acid- rich in WSM. Glycosaminoglycan analysis Glycosaminoglycans are highly negatively charged because of the presence of sulfate ester and/or carboxyl groups. Therefore, they inte...

Ngày tải lên : 21/02/2014, 01:21

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