A chip includes at least one semiconductor body having a radiation-emitting region, and at least one first contact region which is provided for making electrical contact with the semiconductor body and is spaced apart laterally from the radiation-emitting region. A write gap layer separates the pole tip layers from one another at the ABS. The shaft tube is installed within the receiving space and the middle section of the shaft tube is formed with a screw thread portion corresponding to the first inner screw thread. A microcomputer installed in the vehicle checks whether the key ID code matches a vehicle ID code when the key is arranged in the vehicle and checks whether the key transponder code matches a vehicle transponder code when the key is inserted in the socket. The primary relief surface forms with the associated side abutment surface a primary relief surface angle that varies from a maximal value adjacent an upper end of the primary cutting edge to a minimal value. Also provided are pharmaceutical compositions and methods of treating obesity, diabetes and inflammatory or immune associated diseases comprising said compounds.