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

... that of C. jejuni. In summary, we have presented the complete structures of the LOS and capsule polysaccharide of the genome sequenced strain C. jejuni NCTC 11168. The outer core LOS of NCTC 11168 ... core and 6-O-Me-Hep in the capsule polysaccharide in this study. We are currently characterizing the heptose biosynthetic pathways in NCTC 1...

Ngày tải lên: 21/02/2014, 01:21

... were excluded from the study. Our analysis of the distributions of G + C content, CpG islands, and genes was only restricted to the remaining 24 chromosomes. The densities of CpG islands and genes were ... have its genome sequenced. Like most bird species, the chicken has a relatively small genome of $ 1200 million base pairs, or $ 39% of the size of the hum...

Ngày tải lên: 19/02/2014, 07:20

... these compounds and the absence of synthesis of poly(A) by the E.colipoly(A) polymerase, we did not observed adenyly- lation of guanosine, GDP or Gp 4 G by the yeast enzyme. In the absence or presence of these ... as effectors of the synthesis of poly(A) Based on the above results, the effect of several diguanosine polyphosphates on the synthesis of poly(A) w...

Ngày tải lên: 21/02/2014, 01:21

... phosphorylation activity of the CK2 a subunit [39]. The functional homology of the Stellate protein with the CK2 b subunit rises the f ormal possibility t hat the Stellate protein may take part in the ... m M ). Fig. 3. Effect of polylysine on the phosphorylation of calmodulin by catalytic subunit or by holoenzyme reconstituted from CK2a and CK2btes proteins. Calmodul...

Ngày tải lên: 21/02/2014, 15:20

... posi- tioned in the connecting loops. Approximately one- third of all mutations in the BTK gene are missense and some of these reduce the stability of the protein. This is exemplified by mutations in the ... extremely low and often undetectable in immunoblot analysis. The activation of CD4 + cells, however, dramatically induces transcription of the ITK gene and is...

Ngày tải lên: 14/02/2014, 18:20

... complexity of the purification procedure. Moreover, as with the studies by Lee et al. [21] and Subramanian and Shree [42], there was no rigorous assessment of the purity of the product or the correctness ... affinity chromatography and subsequent throm- bin cleavage [41]. The use of thrombin significantly increases the cost of the purification, and the require-...

Ngày tải lên: 18/02/2014, 13:20

... pathways from the synthesis of 3-ketoacyl CoAs by a condensing enzyme to the incorporation of fatty acids into lipids such as triacylglycerol or membrane phospholipids. This in vivo system is therefore ... we also noted the level of activity found in many of the chimeric enzymes. Many of the changes we made resulted in chimeric enzymes with substantially lower activity tha...

Ngày tải lên: 21/02/2014, 15:20

... they are hydrophobic and negatively charged. A comparison of rhodamine uptake, in the presence and the absence of uncouplers, allows the estimation of the effect of intracellular binding on the ... measures the total dye amount associated with the cells, including the dye adsorbed to the sur- face of the cells. To avoid complication of the uptake studies...

Ngày tải lên: 18/02/2014, 13:20

... committed step, the phosphorylation of the c-carboxyl group of aspartate, of the biosynthetic pathway of the aspartic acid group amino acids Lys, Thr, Ile, and Met, in microorganisms and plants. ... domain of TtAK contributes not only to catalytic regulation, but also the thermostability of TtAK. Comparison of the crystal structures of TtAKb and CgAKb was e...

Ngày tải lên: 18/02/2014, 08:20

... binding of the influenza virus to red blood cells via sialic acid [1], and later by work on the chemical basis of the antigenicity of polysaccharides and of the well-known ABO (H) blood-group system ... sequences and linkages of these oligosaccharides, were initially elucidated by high- sensitivity ES-MS/MS analysis, and then their full structure assignment was comple...

Ngày tải lên: 19/02/2014, 12:20