Abstract
The mouse monoclonal antibody SMP has previously been demonstrated to react immunohistochemically with neurofibrillary tangles, argyrophilic plaques, and leptomeningeal vascular amyloid deposits in the brain tissue of individuals dying from pathologically diagnosed Alzheimer's disease. In preliminary studies the antibody was shown, by size exclusion chromatography, to bind to a protein with an apparent molecular mass of 260 kDa present in the CSF and serum of demented individuals. Chromatographic separation of a 40% ammonium sulphate precipitate of CSF and serum yielded immunoreactive fractions that were subjected to 9% sodium dodecyl sulphate-polyacrylamide gel electrophoresis followed by western blotting. Probing the nitrocellulose blot with the antibody revealed that the antibody selectively binds to a protein chain with an apparent molecular mass of 100 kDa. By using a combination of affinity chromatography and sodium dodecyl sulphate-polyacrylamide gel electrophoresis, coupled with western blotting, the serum component with which the antibody reacts has been identified as complement factor 4. In addition, the antibody has been shown to react specifically with an epitope on the alpha-chain of this protein.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
