Dadek is designed to be a customizable database for practicing pathologists using in-house immunohistochemistry. Images of control material for each antibody are available for viewing accompanied by a descriptive few sentences that explain the expected staining pattern in said tissue. This includes which cell type and localization, with the latter specific to either plasma membrane, cytoplasmic or nuclear. Because of inconsistencies in the naming of antibodies, alias are provided as additional information. Other information included are the appropriate control for each specific antibody and the tissue components that comprise that antibodys control block.