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Pore size of the malaria parasite's nutrient channel

机译:疟原虫营养通道的孔径

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摘要

The malaria parasite, Plasmodium falcipa- rum, requires large amounts of nutrients to sustain its rapid growth within the human red blood cell. A recently identified ion channel on the surface of the intraerythrocytic parasite may provide direct access to these nutrients in the red blood cell cytosol. Evidence supporting this role was obtained by incorporating this channel into planar lipid bilayers. In bilayers, this channel has conductance and gating properties identical to the in situ channel, passes soluble macromolecules of up to 1400 Da, and functions as a high capacity, low affinity molecular sieve.
机译:疟原虫恶性疟原虫需要大量营养以维持其在人红细胞中的快速生长。红细胞内寄生虫表面上最近发现的离子通道可以直接进入红细胞细胞质中的这些养分。通过将此通道整合到平面脂质双层中获得了支持该作用的证据。在双层中,此通道具有与原位通道相同的电导和门控特性,可通过高达1400 Da的可溶性大分子,并具有高容量,低亲和力的分子筛功能。

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