Lipid domains control myelin basic protein adsorption and membrane interactions between model myelin lipid bilayers

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Lipid domains control myelin basic protein adsorption and membrane interactions between model myelin lipid bilayers.

The surface forces apparatus and atomic force microscope were used to study the effects of lipid composition and concentrations of myelin basic protein (MBP) on the structure of model lipid bilayers, as well as the interaction forces and adhesion between them. The lipid bilayers had a lipid composition characteristic of the cytoplasmic leaflets of myelin from "normal" (healthy) and "disease-lik...

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Interaction forces and adhesion of supported myelin lipid bilayers modulated by myelin basic protein.

Force-distance measurements between supported lipid bilayers mimicking the cytoplasmic surface of myelin at various surface coverages of myelin basic protein (MBP) indicate that maximum adhesion and minimum cytoplasmic spacing occur when each negative lipid in the membrane can bind to a positive arginine or lysine group on MBP. At the optimal lipid/protein ratio, additional attractive forces ar...

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Great Britain Lipid and Basic Protein Interaction in Myelin

1. Purified myelin labelled with [3H]myo-inositol or [1-14C]acetate was incubated with trypsin or acetylated trypsin at 37°C, pH 8.0 for 30min. 2. After incubation and centrifugation analysis of the myelin pellet showed marked digestion of basic protein on polyacrylamide-gel electrophoresis. Proteolipid and Wolfgram proteins remained unchanged. 3. A loss of 15% of total protein and loss of all ...

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Serum and Saliva Myelin Basic Protein as Multiple Sclerosis Biomarker

Objective: Multiple sclerosis (MS) is presented with motor and sensory function loss. It is caused by demyelination and following axonal lesion. As myelin basic protein (MBP) is one of the key elements of the myelin cover, we examined the level of MBP in serum, stimulated, and unstimulated saliva as a suitable biomarker for detecting MS. Methods: A case-control study was performed in 29 health...

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Myelin basic protein.

The fact that central nerve tissue is encephalitogenic has been known since the observation of a post-injection reaction of some rabies victims to the Pasteur vaccine that contained nerve tissue (Brostoff, 1977). Subsequently the encephalitogenic agent in central nerve tissue was traced to a component of the myelin sheath, and a protein was finally isolated that in the presence of complete Freu...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2014

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.1401165111