Báo cáo khoa học: " Low numbers of intestinal Shiga toxin-producing E coli correlate with a poor prognosis in sheep infected with bovine leukemia virus" pps

... antiviral activities in vitro and STEC numbers correlate with reduced early viremia in sheep experimentally infected with bovine leukemia virus (BLV). This study assessed the impact of intestinal ... Science, University of Queensland, St. Lucia QLD 4072, Australia Low numbers of intestinal Shiga toxin-producing E. coli correlate with a poor...

Ngày tải lên: 07/08/2014, 23:22

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Ngày tải lên: 07/08/2014, 15:20

... the warm months, and are restored again in the following winter. These seasonal changes are shown by populations where there are sharp changes in temperature between winter ... also be influenced by the differing behaviour of the 2 populations in response to seasonal changes. Because of the semi-open habitat of the cellar, changes in th...

Ngày tải lên: 09/08/2014, 22:22

... after an aerosol chal- lenge with viable bacteria. The difference between these two mutants in bacterial clearance might reflect differences in the integrity of their outer membrane, binding activity ... human serum of O35ElpxX. In a murine respiratory clearance model after an aerosol challenge with each viable bacterium, O35El- pxL showed a similar bacterial clearance patter...

Ngày tải lên: 18/02/2014, 14:20

... proteins in Saccharomyces cerevisiae ) role of protein kinase A in the mitochondrial targeting of CYP 2E1 Naresh B. V. Sepuri, Sanjay Yadav, Hindupur K. Anandatheerthavarada and Narayan G. Avadhani Department ... protected against protease treatment even after stripping of the outer membrane. These results suggest that mitochondria-associated CYP 2E1 is localized inside the inner...

Ngày tải lên: 18/02/2014, 16:20

... n M) and various concentrations of VVA1 were preincubated as indicated, and the percentage of hemolysis was calculated as described in Experimental procedures. Each value represents the mean ± ... 4A, lane 2). Interest- ingly, again no oligomers of VVA2 were detected after incubation of VVA2 with VVA1 at a molar ratio of 2 (Fig. 4A, lane 2). When VVA1 beads were incubated wit...

Ngày tải lên: 19/02/2014, 06:20

... clear, however, that the overall magnesium chelatase reaction requires ATP hydrolysis. The observations are consistent with earlier observations with pea magnesium chelatase where the magnesium ... mutants carrying the recessive allele are all green and indistinguishable from the wild-type plants. In contrast the heterozygous plants carrying the semidominant allele are pale green. It ha...

Ngày tải lên: 19/02/2014, 12:20

... summary, the results presented here demonstrate that cleavage of membrane associated mucins in the SEA domain is not entirely sequence dependent, but is instead related to general structural features ... the serine to alanine mutation at the cleavage site completely abolished cleavage in COS7 cells and in several human airway and breast cancer cell lines that express endogenous MUC1....

Ngày tải lên: 19/02/2014, 18:20

... as rectangles, b-strands as arrows. ÔdÕ indicates residues in the dimer interface and ÔtÕ residues in tetramer interface. Residues lining the active site cavity are underlined. Residues binding ... five residues of ZmPDC are responsible for a dimer interface area of 400 A ˚ 2 . Another difference of about 400 A ˚ 2 in the dimer interface can be accounted for by a deletion...

Ngày tải lên: 20/02/2014, 11:20

... strain without (indi- cated by –) or with (indicated by +) the pEC86 plasmid carrying the ccm genes, were analyzed by heme staining after SDS ⁄ PAGE. In each lane of the gel, periplasmic extracts ... 8.0), and then loaded onto the same column that had been equilibrated with the same buffer. Proteins were eluted with a linear gradient of NaCl (0–0.2 m). The resulting red fraction...

Ngày tải lên: 06/03/2014, 00:20