The aim of the dictionary is to facilitate the interpretation and use of the image-based data available in the Human Protein Atlas, but also to serve as a tool for training and understanding tissue histology, pathology and cell biology. The dictionary contains three main parts, normal tissue histology, pathology and cell structure. This dictionary covering normal tissues and pathology is based on full tissue sections stained with hematoxylin-eosin (HE) and representative high-resolution images are displayed at different magnifications. The cell atlas covers intra-cellular structures and is based on immunofluorescence and confocal microscopy images, using different color channels to highlight the organelle structure of a cell.
A fourth part of this dictionary, protein expression, shows examples of immunohistochemistry and demonstrates how well-known proteins are expressed in various cells of different tissues.

Complementary annotation dictionaries using antibodies found in the Human Protein Atlas are available as PDF-documents:

Immunohistochemistry annotation dictionary: screen usage (15MB), printing (95MB).