Bar J, Weber A, Hoffmann T, Stork J, Wermann M, Wagner L, Aust S, Gerhartz B, Demuth HU (2003) <br />Characterisation of human dipeptidyl peptidase IV expressed in Pichia pastoris. A structural and mechanistic comparison between the recombinant human and the purified porcine enzyme<br /><i>Biol Chem</i> <b>384</b>: 1553<br /><br />Engel M, Hoffmann T, Wagner L, Wermann M, Heiser U, Kiefersauer R, Huber R, Bode W, Demuth HU, Brandstetter H (2003) <br />The crystal structure of dipeptidyl peptidase IV (CD26) reveals its functional regulation and enzymatic mechanism<br /><i>Proc Natl Acad Sci U S A</i> <b>100</b>: 5063<br /><br />