Macroims Tm Macroion Mobility Spectrometer Model 3982
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Electrospray Ionization–Ion Mobility Spectrometry Identified Monoclonal Antibodies that Bind Exclusively to Either the Monomeric or a Dimeric Form of Prostate Specific Antigen
Macroion mobility spectrometry was used to distinguish between a monoclonal antibody (clone M612165) that bound exclusively to monomeric prostate specific antigen and a different monoclonal antibody (clone M612166) that bound exclusively to a dimeric form of the antigen that only comprised 6.8% of the total protein. In the presence of excess antigen, the mobility spectrum of M612165 was replace...
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– We study a two-dimensional model for a long cylindrical stiff charged macroion immersed in a charge-asymmetric electrolyte with charge ratio +2/−1. The model is integrable and it allows an exact analytical determination of the effective charge of the macroion, which characterizes the electrostatic potential at large distances (compared to the screening length) from the macroion. At at high co...
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Heterotrimeric G proteins mediate physiological processes ranging from phototransduction to cell migration. In the accepted model of G protein signaling, Galphabetagamma heterotrimers physically dissociate after activation, liberating free Galpha subunits and Gbetagamma dimers. This model is supported by evidence obtained in vitro with purified proteins, but its relevance in vivo has been quest...
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A commercially available ion mobility spectrometer was interfaced to a custom-built linear time-of-flight (TOF) mass spectrometer for the purpose of examining electrospray-generated plumes. Ionic species that were separated in the ion mobility spectrometer could be selectively determined with the TOF mass spectrometer. Tetraalkylammonium salts, a peptide, and proteins were examined. Their ion m...
متن کاملMacroion-induced compositional instability of binary fluid membranes.
Macroion adsorption on a mixed, fluid, lipid membrane containing oppositely charged lipids induces local changes in lipid composition at the interaction zones, and gradients at their boundaries. Including these effects in the free energy of the macroion-dressed membrane we derive its spinodal equation, and show that nonideal lipid mixing can lead to (lipid-mediated) attraction between macroions...
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تاریخ انتشار 2015