Mechanism of small molecule inhibition of Plasmodium falciparum myosin A informs antimalarial drug design.
Mechanism of small molecule inhibition of Plasmodium falciparum myosin A informs antimalarial drug design.
复制标题
DOI:
10.1038/s41467-023-38976-7
复制
发表时间:
2023-06-12
影响因子:
16.6
通讯作者:
Houdusse, Anne
中科院分区:
文献类型:
--
作者:
Moussaoui, Dihia;Robblee, James P.;Robert-Paganin, Julien;Auguin, Daniel;Fisher, Fabio;Fagnant, Patricia M.;Macfarlane, Jill E.;Schaletzky, Julia;Wehri, Eddie;Mueller-Dieckmann, Christoph;Baum, Jake;Trybus, Kathleen M.;Houdusse, Anne
Malaria results in more than 500,000 deaths per year and the causative Plasmodium parasites continue to develop resistance to all known agents, including different antimalarial combinations. The class XIV myosin motor PfMyoA is part of a core macromolecular complex called the glideosome, essential for Plasmodium parasite mobility and therefore an attractive drug target. Here, we characterize the interaction of a small molecule (KNX-002) with PfMyoA. KNX-002 inhibits PfMyoA ATPase activity in vitro and blocks asexual blood stage growth of merozoites, one of three motile Plasmodium life-cycle stages. Combining biochemical assays and X-ray crystallography, we demonstrate that KNX-002 inhibits PfMyoA using a previously undescribed binding mode, sequestering it in a post-rigor state detached from actin. KNX-002 binding prevents efficient ATP hydrolysis and priming of the lever arm, thus inhibiting motor activity. This small-molecule inhibitor of PfMyoA paves the way for the development of alternative antimalarial treatments. Myosin A (PfMyoA) is essential for the pathogenesis of Plasmodium falciparum, the causative agent of malaria. Here we decipher the mechanism by which a small molecule inhibitor (KNX-002) of PfMyoA impedes its motor activity.
登录
查看更多内容
影响因子:
3.2
作者:
LI, SJ;CRONAN, JE
通讯作者:
CRONAN, JE
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
64.5
作者:
Gyimesi M;Horváth ÁI;Túrós D;Suthar SK;Pénzes M;Kurdi C;Canon L;Kikuti C;Ruppel KM;Trivedi DV;Spudich JA;Lőrincz I;Rauscher AÁ;Kovács M;Pál E;Komoly S;Houdusse A;Málnási-Csizmadia A
通讯作者:
Málnási-Csizmadia A
DOI:
10.1126/science.1200113
发表时间:
2011-03-18
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Malik FI;Hartman JJ;Elias KA;Morgan BP;Rodriguez H;Brejc K;Anderson RL;Sueoka SH;Lee KH;Finer JT;Sakowicz R;Baliga R;Cox DR;Garard M;Godinez G;Kawas R;Kraynack E;Lenzi D;Lu PP;Muci A;Niu C;Qian X;Pierce DW;Pokrovskii M;Suehiro I;Sylvester S;Tochimoto T;Valdez C;Wang W;Katori T;Kass DA;Shen YT;Vatner SF;Morgans DJ
通讯作者:
Morgans DJ
DOI:
10.1021/acs.jpcb.1c03144
发表时间:
2021-06-24
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
Chakraborti A;Baldo AP;Tardiff JC;Schwartz SD
通讯作者:
Schwartz SD