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Table 1 Marker enzyme activities of isolated erythrocyte ghosts, trophozoites and parasite plasma membranes.

From: Preparation of pure and intact Plasmodium falciparum plasma membrane vesicles and partial characterisation of the plasma membrane ATPase

Samples AchE specific activities (μmol/min/mg protein) pLDH specific activities (μmol/min/mg protein)
Erythrocyte ghosts 2.30 ± 0.15 N.D.
Trophozoites 0.05 ± 0.03 0.14 ± 0.01
Parasite plasma membranes No activity No activity
  1. Acetylcholine esterase (AchE) and parasite lactate dehydrogenase (pLDH) activities of isolated trophozoites, parasite plasma membranes and/or erythrocyte ghosts were determined as described under materials and methods section. Values are means ± standard deviation of three separate experiments from separate parasite plasma isolations, trophozoite isolations or erythrocyte membrane preparations. N.D.: not determined.