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In vitro immunization with antigen directly blotted from SDS-polyacrylamide gels to polyvinylidene difluoride
1Department of Pediatrics, University of Zürich, Switzerland.
A new immunization method has been developed for the production of monoclonal antibodies. This technique uses small amounts of partially purified and weak immunogenic antigen, bound to membranes after blotting from SDS-PAGE. For this purpose two different membranes have been tested. Immobilon-P polyvinylidene difluoride (PVDF) membranes were less mitogenic than nitrocellulose membranes, and were therefore selected for the in vitro immunization using 6-pyruvoyl tetrahydropterin synthase as antigen. The in vitro immunization method was then used for the production of monoclonal antibodies against 6-pyruvoyl tetrahydropterin synthase, one of the key enzymes on the biosynthetic pathway of tetrahydrobiopterin, the natural cofactor of the mammalian aromatic amino acid hydroxylases. The antibodies obtained were mainly of the IgM type.
A new immunization method has been developed for the production of monoclonal antibodies. This technique uses small amounts of partially purified and weak immunogenic antigen, bound to membranes after blotting from SDS-PAGE. For this purpose two different membranes have been tested. Immobilon-P polyvinylidene difluoride (PVDF) membranes were less mitogenic than nitrocellulose membranes, and were therefore selected for the in vitro immunization using 6-pyruvoyl tetrahydropterin synthase as antigen. The in vitro immunization method was then used for the production of monoclonal antibodies against 6-pyruvoyl tetrahydropterin synthase, one of the key enzymes on the biosynthetic pathway of tetrahydrobiopterin, the natural cofactor of the mammalian aromatic amino acid hydroxylases. The antibodies obtained were mainly of the IgM type.