| Abbott, Catherine A., et al. "Cloning, expression and chromosomal localization of a novel human dipeptidyl peptidase (DPP) IV homolog, DPP8." European Journal of Biochemistry 267.20 (2000): 6140-6150. |
| Banbula, Agnieszka, et al. "Prolyl Tripeptidyl Peptidase from Porphyromonas gingivalis A NOVEL ENZYME WITH POSSIBLE PATHOLOGICAL IMPLICATIONS FOR THE DEVELOPMENT OF PERIODONTITIS." Journal of Biological Chemistry 274.14 (1999): 9246-9252. |
| Harris, Michael N., et al. "Kinetic and mechanistic studies of prolyl oligopeptidase from the hyperthermophile Pyrococcus furiosus." Journal of Biological Chemistry 276.22 (2001): 19310-19317. |