https://pmc.ncbi.nlm.nih.gov/articles/PMC39179/
Evidence from disruption of the lmcpb gene array of Leishmania mexicana that cysteine proteinases...
The mammalian form of the protozoan parasite Leishmania mexicana contains high activity of a cysteine proteinase (LmCPb) encoded on a tandem array of 19 genes...