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Usage

Uses

Used in Immunochemistry and Histology:
DAB 4HCl is used as a chromogen for detecting antigen-antibody complexes, particularly at the electron and light microscope levels. Its reaction with peroxidase forms a visible insolable product, allowing for the visualization of peroxidase activity in cells.
Used in Enzyme Assays:
DAB 4HCl is used as a substrate to assay the activity of enzymes such as glutamate decarboxylase in rat cerebellar sections, providing a means to study enzyme function and regulation.
Used in Cell Surface Marker Detection:
DAB 4HCl is used to detect the presence of horseradish peroxidase on cultured cell surfaces, aiding in the study of cell surface proteins and their interactions.
Used in HRP-based Assays:
DAB 4HCl is used in HRP-based assays suitable for immunohistology staining procedures, western blotting, and FISH (fluorescence in situ hybridization), enabling the detection and analysis of specific proteins and nucleic acids.
Used in Studying Epithelial Cell Apoptosis:
DAB 4HCl is used in studying epithelial cell apoptosis in the event of early cataracts, providing insights into the molecular mechanisms underlying this condition.
Used in Immunohistochemistry Protocols:
DAB 4HCl is used in immunohistochemistry protocols of autosomal dominant polycystic kidney disease (PKD), aiding in the investigation of this genetic disorder.
General Description:
DAB 4HCl is designed as an immunohistology stain to visualize peroxidase activity in cells. Its oxidation can be measured using a spectrophotometer, providing a quantitative assessment of peroxidase activity.
Chemical Properties:
DAB 4HCl is a grey to brownish-purple crystalline powder, which is an essential characteristic for its use in various staining and detection applications.

Biochem/physiol Actions

In the peroxidase reaction, DAB serves as a hydrogen donor in the presence of peroxide. The oxidized DAB forms an insoluble brown-colored complex.