... and then effects the processive attachment of ubiqui- tin monomers first to lysines on the targeted protein and then to lysines of previously attached ubiquitins. The activation of ubiquitin by the ... down-regulated. The primary mechanism whereby this requirement is met is via the APC/C-dependent The ubiquitin-proteasome pathway in cell cycle control 157 minal to the F-box. In addition, some members of the ... domain properly with respect to the catalytic site of the SCF core. The essentiality of dimerization in the function of other Cdc4/Fbw7 homologs remains to be determined. The second class of SCF cofactor...
Ngày tải lên: 25/10/2013, 21:20
... wasincubatedwithH-DXRinthe presence of NADPH, consumption of the cofactor was shown by the decrease in the absorption at 340 nm, suggesting that the enzyme reduced the aldehyde 4.Forthe identification of MEP, the ... triterpenoids of the hopane series from Methylobacterium fujisawaense demon- strated for the first time the presence of a rearrangement in the MEP pathway [48]. By analogy with the biosynthesis of the amino ... NADPH-dependent reduction of the oxo group to give the final product. In the reactions catalyzed by the two enzymes, the ketol-acid and the DXP isomero- reductase, the formation of the expected intermediates, 3-hydroxy-3-methyl-2-oxo-butyrate...
Ngày tải lên: 21/02/2014, 03:20
Your Guide to the Breast Cancer Pathology Report pptx
... is removed from the body to check for cancer. These are called pathology reports. Each report has the results of the studies done on the removed tissue. The information in these reports will ... Your Pathology Report • The pathology report answers questions about a breast abnormality 6 • Is the breast abnormality a cancer? 6 • Is the breast cancer invasive? 7 • How different are the ... Your Guide to the Breast Cancer Pathology Report TABLE OF CONTENTS Wait for the Whole Picture • Waiting for test results 2 • Get all the information you need 3 • Parts of your pathology report...
Ngày tải lên: 06/03/2014, 02:21
Báo cáo khoa học: Prediction of missing enzyme genes in a bacterial metabolic network Reconstruction of the lysine-degradation pathway ofPseudomonas aeruginosa doc
... in metabolic pathways are found visually by looking at the connectivity between the enzyme genes on the pathway map reflecting current pathway knowledge. Suppose that there is a pathway hole between ... In this study the param- eter h is set to 10 5 . This means that, the larger the distance between two genes along the chromosome, the smaller the value of the similarity score. The resulting ... by the number of nucleotides between the end of the i-th gene and the start of the j-th gene along the chro- mosomes. We then derived a distance kernel using the for- mula K position (x i ,x j )...
Ngày tải lên: 07/03/2014, 09:20
Báo cáo khoa học: Increased NADPH concentration obtained by metabolic engineering of the pentose phosphate pathway in Aspergillus niger docx
... increase of synthesis of pyr- idine nucleotide cofactors, as the total pool of these increased. Whether the synthesis is regulated by the NADPH concentration remains speculation. The G6PDH overproducing ... 6-phosphate is a branching point to several pathways. It leads to the pentose phosphate pathway, glycolysis and the pathways for biosynthesis of cell wall components. The Aspergillus niger gene encoding G6PDH ... Figure 4B shows the X-loading weights of the X-variables (measured variables other than NADPH) and the Y-loading of NADPH on the two PCs. As NADPH is in the first quadrant of Fig. 4B (the four quadrants...
Ngày tải lên: 07/03/2014, 17:20
Báo cáo khoa học: Cross-species divergence of the major recognition pathways of ubiquitylated substrates for ubiquitin⁄26S proteasome-mediated proteolysis potx
... interaction with the DSK2 homolog from the respective species, we decided to test the hydrophobic patches within the UBLs of the DSK2 homologs for their involvement in the interaction with RPN13. The potential ... abolished the association with RPN10 (Fig. 2B). These results indi- cate that the UBLs of the human RAD23 and DSK2 homologs and yeast DSK2 play a role in the associa- tion with the RPN10 homolog. Furthermore, ... critical for the interaction. S5a in parentheses is the designated name for the human RPN10 homolog. d IF, the interface regions on the UBL–UBA factors that are involved in binding with the docking...
Ngày tải lên: 15/03/2014, 09:20
Báo cáo khoa học: Alpha 1,3-fucosyltransferase-VII regulates the signaling molecules of the insulin receptor pathway potx
... whether the SLe x level of InR on insulin-responsive cells in diabetic patients was changed. This may reveal the role of the sugar chains on InR in the pathogenesis of diabetes. In summary, the ... upregulating the phosphorylation and expression of some signaling molecules involved in the InR-signaling path- way. These effects are likely mediated by its product, SLe x , on the glycans of the InR. ... receptor; IP, immunoprecipitation by the antibody to the protein indicated at the right; WB, western immunoblot with the antibody to the compound indicated at the right. (A), (C) and (D) are representative...
Ngày tải lên: 16/03/2014, 12:20
Báo cáo khoa học: Revisiting the 13C-label distribution of the non-oxidative branch of the pentose phosphate pathway based upon kinetic and genetic evidence doc
... expected, the largest differences are found for the PPP split-ratio and the fluxes of the nonoxidative branch of the PPP. The minimized covariance-weighted sum of squared residuals (SS res ) in these ... normalized for the glucose-uptake rate. Values outside parentheses denote the net fluxes, while values inside parentheses represent the exchange fluxes. Solid arrow- heads denote the direction of the net ... of the traditional model. The similarity of the flux estimates indicates that the presence of isoenzymes reduces the difference in 13 C-label distribution between the two models and impedes their...
Ngày tải lên: 23/03/2014, 15:21
Báo cáo khoa học: Structure and function of the 3-carboxy-cis,cis-muconate lactonizing enzyme from the protocatechuate degradative pathway of Agrobacterium radiobacter S2 pdf
... in the mutant. First, there is an increase in the negative charge in the active site and, second, breaking the salt bridge would alter the quaternary structure of the protein and therefore the ... catalysis. The alignment of the small CMLEs from different members of the Rhizobiales with these sequences demonstrated that in A. radiobacter S2 (and the other member of the Rhizobiales), the amino ... demonstrated that the mutation did not alter the tetrameric behavior of the protein, indicating that the mutation affected the catalytic machinery directly, rather than the oligomeric state of the enzyme. Overall...
Ngày tải lên: 30/03/2014, 10:20
the mit press paths to a green world the political economy of the global environment apr 2005
Ngày tải lên: 11/06/2014, 12:44
báo cáo hóa học:" Serum high mobility group box-1 (HMGB1) is closely associated with the clinical and pathologic features of gastric cancer" pptx
Ngày tải lên: 18/06/2014, 15:20
báo cáo hóa học: " Interferon regulatory factor 3 plays an anti-inflammatory role in microglia by activating the PI3K/Akt pathway" doc
Ngày tải lên: 19/06/2014, 22:20
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