Identification of Exported Plasmodium falciparum Proteins That Bind to the Erythrocyte Cytoskeleton.
Identification of Exported Plasmodium falciparum Proteins That Bind to the Erythrocyte Cytoskeleton.
复制标题
DOI:
10.3390/microorganisms10071438
复制
发表时间:
2022-07-16
期刊:
影响因子:
4.5
通讯作者:
中科院分区:
文献类型:
--
作者:
Plasmodium proteins are exported to the erythrocyte cytoplasm to create an environment that supports parasite replication. Although hundreds of proteins are predicted to be exported through Plasmodium export element (PEXEL)-dependent and -independent mechanisms, the functions of exported proteins are largely uncharacterized. In this study, we used a biochemical screening approach to identify putative exported P. falciparum proteins that bound to inside-out vesicles prepared from erythrocytes. Out of 69 P. falciparum PEXEL-motif proteins tested, 18 bound to inside-out vesicles (IOVs) in two or more independent assays. Using co-affinity purifications followed by mass spectrometry, pairwise co-purification experiments, and the split-luciferase assay, we identified 31 putative protein–protein interactions between erythrocyte cytoskeletal proteins and predicted exported P. falciparum proteins. We further showed that PF3D7_1401600 binds to the spectrin-binding domain of erythrocyte ankyrin via its MESA erythrocyte cytoskeleton binding (MEC) motif and to the N-terminal domains of ankyrin and 4.1R through a fragment that required an intact Plasmodium helical interspersed sub-telomeric (PHIST) domain. Introduction of PF3D7_1401600 into erythrocyte ghosts increased retention in the microsphiltration assay, consistent with previous data that reported a reduction of rigidity in red blood cells infected with PF3D7_1401600-deficient parasites.
登录
查看更多内容
影响因子:
6.7
作者:
Heiber A;Kruse F;Pick C;Grüring C;Flemming S;Oberli A;Schoeler H;Retzlaff S;Mesén-Ramírez P;Hiss JA;Kadekoppala M;Hecht L;Holder AA;Gilberger TW;Spielmann T
通讯作者:
Spielmann T
影响因子:
15.8
作者:
Murphy, Sean C.;Harrison, Travis;Hamm, Heidi E.;Lomasney, Jon W.;Mohandas, Narla;Haldar, Kasturi
通讯作者:
Haldar, Kasturi
影响因子:
1.5
作者:
Shakya B;Penn WD;Nakayasu ES;LaCount DJ
通讯作者:
LaCount DJ
影响因子:
7
作者:
Khadka, Sudip;Vangeloff, Abbey D.;Lacount, Douglas J.
通讯作者:
Lacount, Douglas J.
影响因子:
1.5
作者:
FOLEY, M;MURRAY, LJ;ANDERS, RF
通讯作者:
ANDERS, RF