- Trypanosoma cruzi contains a single detectable uracil-DNA glycosylase and repairs uracil exclusively via short patch base excision repair. Peña-Diaz, J., Akbari, M., Sundheim, O., Farez-Vidal, M.E., Andersen, S., Sneve, R., Gonzalez-Pacanowska, D., Krokan, H.E., Slupphaug, G. J. Mol. Biol. (2004)