The protein encoded by METAP2 is a member of the methionyl aminopeptidase family. The encoded protein functions both by protecting the alpha subunit of eukaryotic initiation factor 2 from inhibitory phosphorylation and by removing the amino-terminal methionine residue from nascent proteins. Increased expression of METAP2 is associated with various forms of cancer, and the anti-cancer drugs fumagillin and ovalicin inhibit the protein by irreversibly binding to its active site. Inhibitors of METAP2 have also been shown to be effective for the treatment of obesity. A pseudogene of METAP2 is located on chromosome 2. Several transcript variants encoding different isoforms have been found for METAP2.