A Mg-dependent ecto-ATPase is increased in the infective stages of Trypanosoma cruzi.

In this work, we describe the ability of living epimastigotes of Trypanosoma cruzi to hydrolyze extracellular ATP. In these intact parasites, there was a low level of ATP hydrolysis in the absence of any divalent metal (2.42 +/- 0.

Secreted phosphatase activity induced by dimethyl sulfoxide in Herpetomonas samuelpessoai.

A phosphatase activity of the trypanosomatid parasite Herpetomonas samuelpessoai was characterized using intact living cells. The effects of dimethyl sulfoxide (DMSO) on this activity were investigated. This phosphatase activity (2.