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Amastin mRNA expression during the T. cruzi life cycle in different parasite strains. Total RNA was extracted from epimatigote (E), trypomastigote (T) and amastigote forms (A) from CL Brener, Y, G and Sylvio X-10. Electrophoresed RNAs (~10 μg/lane) were transferred to nylon membranes and probed with the 32P- labelled sequences corresponding to δ-amastin, δ-Ama40, β1- and β2-amastins (top panels). Bottom panels show hybridization of the same membranes with a fragment of the 24Sα rRNA.
