Biogenesis of the crystalloid organelle in Plasmodium involves microtubule-dependent vesicle transport and assembly.
Biogenesis of the crystalloid organelle in Plasmodium involves microtubule-dependent vesicle transport and assembly.
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DOI:
10.1016/j.ijpara.2015.03.002
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发表时间:
2015-07
影响因子:
4
通讯作者:
Dessens, Johannes T.
中科院分区:
文献类型:
--
作者:
Saeed, Sadia;Tremp, Annie Z.;Dessens, Johannes T.
Crystalloid formation in Plasmodium berghei occurs during the early phase of ookinete development. Deletion of the LCCL domain from LAP3 causes delayed crystalloid formation. Knockout of LAP3 prevents crystalloid formation. Crystalloid biogenesis involves active vesicle transport and assembly. Crystalloid assembly is microtubule-dependent. Malaria parasites possess unique subcellular structures and organelles. One of these is the crystalloid, a multivesicular organelle that forms during the parasite’s development in vector mosquitoes. The formation and function of these organelles remain poorly understood. A family of six conserved and modular proteins named LCCL-lectin adhesive-like proteins (LAPs), which have essential roles in sporozoite transmission, localise to the crystalloids. In this study we analyse crystalloid formation using transgenic Plasmodium berghei parasites expressing GFP-tagged LAP3. We show that deletion of the LCCL domain from LAP3 causes retarded crystalloid development, while knockout of LAP3 prevents formation of the organelle. Our data reveal that the process of crystalloid formation involves active relocation of endoplasmic reticulum-derived vesicles to common assembly points via microtubule-dependent transport. Inhibition of microtubule-dependent cargo transport disrupts this process and replicates the LCCL domain deletion mutant phenotype in wildtype parasites. These findings provide the first clear insight into crystalloid biogenesis, demonstrating a fundamental role for the LAP family in this process, and identifying the crystalloid and its formation as potential targets for malaria transmission control.
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影响因子:
3.6
作者:
Ecker A;Bushell ES;Tewari R;Sinden RE
通讯作者:
Sinden RE
DOI:
10.1073/pnas.91.16.7812
发表时间:
1994-08-02
影响因子:
11.1
作者:
HAMMALVAREZ, SF;ALAYOF, BE;SHEETZ, MP
通讯作者:
SHEETZ, MP
影响因子:
1.5
作者:
JANSE, CJ;VANDERKLOOSTER, PFJ;OVERDULVE, JP
通讯作者:
OVERDULVE, JP
影响因子:
3
作者:
Dawes EJ;Churcher TS;Zhuang S;Sinden RE;Basáñez MG
通讯作者:
Basáñez MG
影响因子:
9.6
作者:
Dessens JT;Saeed S;Tremp AZ;Carter V
通讯作者:
Carter V