The protein class section contains a selection of gene lists used to stratify the proteome. Each table shows the total number of genes and the number of genes with antibodies for all classes as well as a link to the original source of the gene list. Clicking the name of a class retrieves a search result containing all genes belonging to the class with additional data.
The table "Main classes" consists of functional classes of proteins, such as kinases, transcription factors and enzymes. The table "Project related classes" consists of a selection of gene lists obtained from projects such as the Plasma Proteome project, the Cancer Genome project and the UniProt Consortium. In addition to these two tables, a selection of protein classes, which can be further categorized into subclasses, are also shown in separate tables. The "Potential transmembrane proteins" table has been described in more detail here.