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Direct measurement of cortical force generation and polarization in a living parasite.

Molecular biology of the cell (2017-02-18)
Rachel V Stadler, Lauren A White, Ke Hu, Brian P Helmke, William H Guilford
ABSTRACT

Apicomplexa is a large phylum of intracellular parasites that are notable for the diseases they cause, including toxoplasmosis, malaria, and cryptosporidiosis. A conserved motile system is critical to their life cycles and drives directional gliding motility between cells, as well as invasion of and egress from host cells. However, our understanding of this system is limited by a lack of measurements of the forces driving parasite motion. We used a laser trap to measure the function of the motility apparatus of living

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Sigma-Aldrich
Poly-L-lysine hydrobromide, mol wt 30,000-70,000