FOCAL 38V PDF

refraction of light. This biconvex lens has a diameter cm with a focal length of 10 cm. Product Code EISV. MTA Catalogue page: Description. When the voltage of the pulse is increased above V3 = 38 V, some domains are the remaining domains are switched to the focal conic state during the pulse. Constitutively activated R-Ras(38V) dramatically enhanced focal adhesion kinase (FAK) and pCas phosphorylation upon collagen stimulation or clustering.

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Cells were stimulated for 10 min with collagen in suspension or by adhesion to collagen for 45 min, and phosphorylation of FAK and p Cas was determined by immunoprecipitation followed by immunoblotting. Role of Grb7 targeting to focal 3v and its phosphorylation by focal adhesion 38 in regulation of cell migration.

The expression of activated R-Ras does not enhance binding of 12G Cells were stimulated with collagen in suspension for 10 min; FAK and p Cas were immunoprecipitated IP and then immunoblotted with antiphosphotyrosine antibody, anti-FAK, or anti-p Cas as indicated.

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In an effort to understand the role of R-Ras in integrin-mediated cell migration, we examined the effects of R-Ras on focal adhesions. Dimethyl sulfoxide-treated cells are not shown; however, they look like the dimethyl sulfoxide-treated cells in Fig. A R-Ras effector loop mutants used in this study and their reported binding activities based on data compiled from several labs 17232437 are shown.

The immunoprecipitated proteins were subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis SDS-PAGE and were subsequently transferred to polyvinyl difluoride membranes Millipore.

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Collagen did not appreciably enhance phosphorylation at Y in either control or R-Ras-expressing cells Fig. R-Ras enhances focal adhesion formation. R-Ras signals through specific integrin alpha cytoplasmic domains to promote migration and invasion of breast epithelial cells.

Integrin-mediated signals regulated by members of the Rho family of GTPases. Quality Educational Products Freephone Freefax Quantitation of these data is listed in the text. These results suggest that PI3K plays a role in R-Ras signaling to focal adhesions, especially in the enhancement of large, central focal adhesions, but that PI3K does not account for all effects of R-Ras on focal adhesion formation.

Optical glass lens to demonstrate refraction of light. Data shown are representative of more than four experiments. Therefore, R-Ras does not induce the conformational change detected by the 12G10 antibody.

R-Ras enhancement of p Cas phosphorylation also requires two pathways, one Src dependent and the other Focak dependent. Although R-Ras increases breast epithelial cell adhesion to collagen, we think this is also through changes in avidity, not just conformational changes related to altered affinity Fig. Suppression of integrin activation: Importantly, R-Ras signals to FAK and p 38g by a mechanism that is not due merely to enhanced integrin ligand binding, although it collaborates with integrin signaling.

Rho, Rac, and Focao GTPases regulate the assembly of multimolecular focal cmplexes associated with actin stress fibers, lamellipodia, and filopodia. FAK and p Cas appear to be necessary regulators of focal adhesion dynamics and the promotion of cell migration 2111418 Freefax Collectively, these results suggest that there are Src-dependent and Src-independent pathways in R-Ras signaling to FAK, p Casfocal adhesion formation, and cell migration. Cell migration demonstrated a similar trend, since PP2 partially inhibited R-Ras-induced cell migration Fig.

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Control cells along with K-Ras 12V -expressing cells were unable to form focal adhesions upon treatment with both inhibitors. Convex lenses are bent outwards in other words, the centre of the lens is thicker than the edges.

Biconvex Lens – 38mm – Focal Length 100mm

All of the mutations in the R-Ras effector loop diminished the formation of large, central focal adhesions promoted by R-Ras 38V Fig. Although the biological functions of R-Ras are clearly distinct from those of H- N- and K-Ras, the molecular basis for this difference is poorly understood. Enhanced focal adhesion formation in R-Ras-expressing cells could account for increased cell adhesion to collagen through enhanced integrin clustering and avidity. R-Ras 38V expression not only promoted larger focal adhesions but also the appearance of focal adhesions localized to the center of the 3v surface of 38g cell.

Images were collected, and three-dimensional deconvolution was performed using Inovision software. Percent cells with focal adhesions refers to cells with both AA and BB phenotypes. R-Ras regulates integrin function, but its effects on integrin rocal pathways have not been well described.

C Focal adhesion formation in R-Ras 38V -expressing cells is partially resistant to inhibition of Src. Heterologous expression and characterization of the human R-ras gene product.