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In Silico Assessment of the Lipid Fingerprint Signature of ATP2, the Essential P4-ATPase of Malaria Parasites
oleh: Mario López-Martín, Pedro Renault, Jesus Giraldo, José Luis Vázquez-Ibar, Alex Perálvarez-Marín
Format: | Article |
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Diterbitkan: | MDPI AG 2022-07-01 |
Deskripsi
ATP2, a putative type 4 P-type ATPase, is a phosphatidylinositol-4-phosphate (PI4P)-regulated phospholipid transporter with an interesting potential as an antimalarial drug target due to its conservation across <i>Plasmodium</i> species and its essential role in the life cycle of <i>Plasmodium falciparum</i>. Despite its importance, the exact mechanism of its action and regulation is still not fully understood. In this study we used coarse-grained molecular dynamics (CG-MD) to elucidate the lipid–protein interactions between a heterogeneous lipid membrane containing phosphatidylinositol and <i>Plasmodium chabaudi</i> ATP2 (PcATP2), an ortholog of <i>P. falciparum</i> ATP2. Our study reveals structural information of the lipid fingerprint of ATP2, and provides structural information on the potential phosphatidylinositol allosteric binding site. Moreover, we identified a set of evolutionary conserved residues that may play a key role in the binding and stabilization of lipids in the binding pocket.