PCRCR complex is essential for invasion of human erythrocytes by Plasmodium falciparum.
PCRCR complex is essential for invasion of human erythrocytes by Plasmodium falciparum.
复制标题
PCRCR 复合物对于恶性疟原虫入侵人类红细胞至关重要。
DOI:
10.1038/s41564-022-01261-2
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发表时间:
2022-12
影响因子:
28.3
通讯作者:
中科院分区:
文献类型:
--
作者:
The most severe form of malaria is caused by Plasmodium falciparum. These parasites invade human erythrocytes, and an essential step in this process involves the ligand PfRh5, which forms a complex with cysteine-rich protective antigen (CyRPA) and PfRh5-interacting protein (PfRipr) (RCR complex) and binds basigin on the host cell. We identified a heteromeric disulfide-linked complex consisting of P. falciparum Plasmodium thrombospondin-related apical merozoite protein (PfPTRAMP) and P. falciparum cysteine-rich small secreted protein (PfCSS) and have shown that it binds RCR to form a pentameric complex, PCRCR. Using P. falciparum lines with conditional knockouts, invasion inhibitory nanobodies to both PfPTRAMP and PfCSS, and lattice light-sheet microscopy, we show that they are essential for merozoite invasion. The PCRCR complex functions to anchor the contact between merozoite and erythrocyte membranes brought together by strong parasite deformations. We solved the structure of nanobody–PfCSS complexes to identify an inhibitory epitope. Our results define the function of the PCRCR complex and identify invasion neutralizing epitopes providing a roadmap for structure-guided development of these proteins for a blood stage malaria vaccine. A heteromeric disulfide-linked complex binds to the RCR complex and is required for invasion of human erythrocytes by Plasmodium falciparum.
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影响因子:
3.7
作者:
Healer J;Thompson JK;Riglar DT;Wilson DW;Chiu YH;Miura K;Chen L;Hodder AN;Long CA;Hansen DS;Baum J;Cowman AF
通讯作者:
Cowman AF
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:
4
作者:
Baum, Jake;Chen, Lin;Cowman, Alan F.
通讯作者:
Cowman, Alan F.
影响因子:
7.7
作者:
Chen, Lin;Xu, Yibin;Cowman, Alan F.
通讯作者:
Cowman, Alan F.
影响因子:
3.6
作者:
Bullen, Hayley E.;Sanders, Paul R.;Dans, Madeline G.;Jonsdottir, Thorey K.;Riglar, David T.;Looker, Oliver;Palmer, Catherine S.;Kouskousis, Betty;Charnaud, Sarah C.;Triglia, Tony;Gabriela, Mikha;Schneider, Molly Parkyn;Chan, Jo-Anne;de Koning-Ward, Tania F.;Baum, Jake;Kazura, James W.;Beeson, James G.;Cowman, Alan F.;Gilson, Paul R.;Crabb, Brendan S.
通讯作者:
Crabb, Brendan S.