Tài liệu Báo cáo Y học: The effects of ring-size analogs of

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

... ring- size analogs of GS (GS10, GS12 and GS14) with phospholipid bilayer model membranes. We ﬁrst investi- gated the effects of these GS ring-size analogs on the thermotropic phase behavior of LMVs composed ... Gram-positive bacteria. The goal of this work is to understand t...

Ngày tải lên : 21/02/2014, 01:21

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Tài liệu Báo cáo Y học: A Raman optical activity study of rheomorphism in caseins, synucleins and tau New insight into the structure and behaviour of natively unfolded proteins pot

... reveals that the /,w angles of most of the residues of the Bowman±Birk inhibitor are distributed fairly evenly over the b- and PPII-regions of the Ramachandran surface, so the same m ay be true ... mutant of human tau 46 is P PII helix. Some b strand may also be present, but no b sheet. Caseins, synuclein...

Ngày tải lên : 21/02/2014, 15:20

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Tài liệu Báo cáo Y học: Enhancement by a-tocopheryl hemisuccinate of nitric oxide production induced by lypopolysaccharide and interferon-c through the upregulation of protein kinase C in rat vascular smooth muscle cells docx

... that the addition of TS alone induced NO production in human U937 monoblasts possibly by the activation of NF-jB [19]. Further study is necessary to clarify the relationship between the activation of ... examined the effects of TS on the amounts of PKCa and PKCb by Western blotting. As shown in...

Ngày tải lên : 22/02/2014, 04:20

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Tài liệu Báo cáo Y học: Differential effects of arachidonoyl triﬂuoromethyl ketone on arachidonic acid release and lipid mediator biosynthesis by human neutrophils pot

... classes and subclasses were determined after base hydrolysis by NICI-GC/MS as described above. SA in phospholipid classes and subclasses were calculated and expressed as radioactivity (nCi)Ænmol )1 arachidonate. Determination ... reactions. Thus, while PLA 2 isotypes may provide most of the AA that is utilised for eicosanoid biosynthesis, reacylation...

Ngày tải lên : 22/02/2014, 07:20

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Tài liệu Báo cáo Y học: The effects of low pH on the properties of protochlorophyllide oxidoreductase and the organization of prolamellar bodies of maize (Zea mays) pot

... explanations of these effects cannot therefore be excluded. CONCLUSIONS The present study emphasizes the close relationship existing between the local organization of the PLB membrane and the stability ... case of adenosine. In all cases, the results were uninﬂuenced by the presence or absence of NaF...

Ngày tải lên : 22/02/2014, 04:20

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Tài liệu Báo cáo khoa học: Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase The role of conserved residues and complementary mutations pptx

... relatively small number of positions accommodate only two or three possible amino acids (two substitutions are possible in ﬁve positions and three substitutions are possible in four positions). These ... a potentially stabilizing S- H-N interaction (Fig. 9B) [49]. The above discussion rationalizes the observed effects of the Y7 4W...

Ngày tải lên : 18/02/2014, 11:20

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Tài liệu Báo cáo khoa học: Functional effects of deleting the coiled-coil motif in Escherichia coli elongation factor Ts pptx

... of the mutant EF-Ts in protein synthesis in vivo is  70%ofthatofthe wild-type EF-Ts. The studies of the effect of the EF-Ts mutation under starvation conditions suggest that the growth inhibition ... described by Abrahams et al. [45], was used for the analysis to ensure that the concentrations of ligands we...

Ngày tải lên : 21/02/2014, 00:20

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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

... binding of Glc, enhanced the reactivity of Cys421. As Cys421 is the only invariant cysteine in homologous transporters and also the only essential cysteine for IICB Glc activity [39], it must be the ... di-O-hexadecyl -b- D -glucosylglycerol ethers by epoxidation of an allyl b- D -glucopyranoside asymmetrically induced by the g...

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

... and methods. Hydrolysis of arabinogalactans The sugar composition of the arabinogalactans from potato, onion and soy was determined as described [21]. Onion arabinogalactan consists of 99% D -galactose and 0.3% L -arabinose ... inducers as men- tioned above. Expression of lacA is also detected in the presence of the...

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

... and speciﬁcity in the mononuclear SODs is not governed by one or even two residues, but is most likely accomplished by the concerted effects of a combination of key residues. Further analysis of these and ... each other, and both are conserved in FeSOD and MnSOD sequences. Simulation suggests that Q77 bonding to N74 also d...

Ngày tải lên : 21/02/2014, 01:21

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