The 18026 gene sets in the Molecular Signatures Database (MSigDB) are divided into 8 major collections, and several subcollections. See the table below for a description of each. For more information, see also the MSigDB Statistics and the MSigDB Release Notes in the Documentation section.
Click on the "browse gene sets" links in the table to view the gene sets in a collection. Or download the gene sets in a collection by clicking on the links below the "Download GMT Files" headings. For a description of the GMT file format see the Data Formats in the Documentation section. The gene sets can be downloaded as Entrez Gene Identifiers, HUGO Gene Symbols, or the identifiers specified by the original source of the gene set (e.g. microarray probe set identifiers). An XML file containing all the MSigDB gene sets is available on the Downloads page.