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Home → Service → Research → Purification of mouse alpha-1-fetoprotein and preparation of specific peroxidase conjugates for its cellular localization


Purification of mouse alpha-1-fetoprotein and preparation of specific peroxidase conjugates for its cellular localization

Wolf D. Kuhlmann

Immunocytochemistry SFB 136 and Institut für Nuklearmedizin, DKFZ Heidelberg, Germany



Mouse alpha-1-fetoprotein (AFP) is isolated from amniotic fluid. The main preparative stages are purification by immunoadsorbent columns and preparative electrophoresis. Immune sera are prepared by immunization of rabbits followed by isolation of specific antibody molecules and covalent labeling with horseradish peroxidase (HRP). Affinity chromatography purified conjugates are used for immunohistological staining of AFP in embryonic mouse liver. Several fixation schedules are tried. Best results are obtained when fixation is carried out in ethanol-acetic acid mixture.

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