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
Tài liệu Báo cáo Y học: Differential effects of arachidonoyl trifluoromethyl ketone on arachidonic acid release and lipid mediator biosynthesis by human neutrophils pot
... (1973) The enzymic incorporation of arachidonic acid into ether-containing choline and ethanolamine phosphoglycerides by deacylation-acylation reactions. Biochim. Biophys. Acta 326, 26–33. 51. Yamashita, ... activity of arachidonoyl- CoA synthetase. J. Lipid Res. 25, 288–293. 45. Norman, S.J. & Poyser, N.L. (1998) Detection of acyl-CoA syn- thetase, acyl-CoA. lysophospholipid ac...
Ngày tải lên: 22/02/2014, 07:20
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
... analogs on the thermotropic phase behavior of LMVs composed of dimyristoylglycerophosphocholine (Myr 2 Gro-PCho), dimy- ristoylglycerophosphoethanolamine (Myr 2 Gro-PEtn) and dimyristoylglycerophosphoglycerol ... (L b¢ )tothe(P b¢ ) phase and the main transition from the conversion of the P b¢ to the L a phase. For a more detailed discussion of the thermotropic phase...
Ngày tải lên: 21/02/2014, 01:21
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
... 2002 The effects of low pH on the properties of protochlorophyllide oxidoreductase and the organization of prolamellar bodies of maize ( Zea mays ) Eva Selstam 1 , Jenny Schelin 1 , Tony Brain 2 and ... explanation of the acceleration of the low- pH driven spectral changes seen for the photoconverted and nonphotoconverted enzymes on add...
Ngày tải lên: 22/02/2014, 04:20
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
... interaction (Fig. 9B) [49]. The above discussion rationalizes the observed effects of the Y7 4W mutation in PfTIM on the stability of the dimeric structure and catalytic activity. Examination of the ... includ- ing the proximal residues of the TIM active site. The isomerization of dihydroxyacetone phosphate to glycer- aldehyde 3-phosphate involves a proton a...
Ngày tải lên: 18/02/2014, 11:20
Tài liệu Báo cáo khoa học: Functional effects of deleting the coiled-coil motif in Escherichia coli elongation factor Ts pptx
... exchange and poly(U)-directed poly(Phe) synthesis The ability of the deletion mutant of EF-Ts to stimulate the activity of EF-Tu was tested in guanine nucleotide exchange and poly(U)-directed poly(Phe) ... that of the wild-type strain, depending on the growth conditions used. The mutant strain sensed amino acid starvation and synthesized the nucleotides guanosine...
Ngày tải lên: 21/02/2014, 00:20
Tài liệu Báo cáo Y học: The glucose-specific carrier of the Escherichia coli phosphotransferase system Synthesis of selective inhibitors and inactivation studies pptx
... formation of NADPH in the presence of Glc6P dehydrogenase. This background activity must therefore be due to phosphorylation of Glc released by slow hydrolysis of 3b, and not to phosphorylation of ... uptake concomitant with phosphory- lation of their substrates. The immediate source of high- energy phosphate is the phosphoryl carrier protein HPr which in turn is phospho...
Ngày tải lên: 21/02/2014, 01:21
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
... galacto-oligosaccharides. ACKNOWLEDGEMENTS The authors thank Simon Flitter for the identification and isolation of the galA containing phage clones and Matthew Illsley for the analysis of a- L -1,5-arabinofuranosidase activity in the ... 2 h and 20 h to determine the substrate specificity of the enzyme. The degradation of the polymer and subsequent oligosacchar...
Ngày tải lên: 21/02/2014, 01:21
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
... 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 other mutant SODs is currently underway. ACKNOWLEDGEMENTS We ... either iron or manganese. Selectivity of the proteins for their metal cofactor has been demonstrated in vivo [3] and although apoenzymes of each type...
Ngày tải lên: 21/02/2014, 01:21
Tài liệu Báo cáo Y học: The structures of the lipooligosaccharide and capsule polysaccharide of Campylobacter jejuni genome sequenced strain NCTC 11168 pdf
... characterization of specific enzymes that are involved in the biosynthesis of these structures and may lead to the discovery of potential therapeutic targets. In addition, the correlation of carbohydrate ... established by NMR was observed in the FAB- MS and MALDI-MS (Fig. 8) of the methylated PS-2. The MALDI-MS spectra shows a series of A-type primary glycosyl oxon...
Ngày tải lên: 21/02/2014, 01:21
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
... composition was very similar to the WSM, and consequently the EDTA-IM. Hydroxyproline, hydroxy- lysine and phosphoserine were not detected in WSM, WIM, EDTA-SM and EDTA-IM. The comparison of the amino ... nucleation, inhibition of crystal growth and control of aragonite-calcite polymorphism [43]. At present, only a few constituents of these organic matrices have been i...
Ngày tải lên: 21/02/2014, 01:21