Journal
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
Volume 1853, Issue 3, Pages 699-710Publisher
ELSEVIER
DOI: 10.1016/j.bbamcr.2014.12.030
Keywords
Adaptor protein complex-1 (AP-1); Trafficking; Plasmodium falciparum; Vesicular trafficking; Clathrin; ER-Golgi network
Categories
Funding
- ICGEB
- Department of Science and Technology [SR/WOS-A/LS-209/2013]
- Alberta Innovates Health Solutions Full-time Studentship
- Women and Children Health Research Institute Graduate Studentship
- CIHR Canada Graduate Scholarship (CGS-M)
- UAlberta Biomedical Global Health Research Network
- Department of Biotechnology [BT/01/CEIB/11/V/01]
- Department of Science and Technology, Govt of India
- Department of Biotechnology, Govt of India
- Alberta Innovates [201400096] Funding Source: researchfish
Ask authors/readers for more resources
The human malaria parasite Plasmodium falciparum possesses sophisticated systems of protein secretion to modulate host cell invasion and remodeling. In the present study, we provide insights into the function of the AP-1 complex in P. falciparum. We utilized GFP fusion constructs for live cell imaging, as well as fixed parasites in immunofluorescence analysis, to study adaptor protein mu1 (Pf mu 1) mediated protein trafficking in P. falciparum. In trophozoites Pf mu 1 showed similar dynamic localization to that of several Golgi/ER markers, indicating Golgi/ER localization. Treatment of transgenic parasites with Brefeldin A altered the localization of Golgi-associated Pf mu 1, supporting the localization studies. Co-localization studies showed considerable overlap of Pf mu 1 with the resident rhoptry proteins, rhoptry associated protein 1 (RAP1) and Cytoadherence linked asexual gene 3.1 (Clag3.1) in schizont stage. Immunoprecipitation experiments with Pf mu 1 and PfRAP1 revealed an interaction, which may be mediated through an intermediate transmembrane cargo receptor. A specific role for Pf mu 1 in trafficking was suggested by treatment with AlF4, which resulted in a shift to a predominantly ER-associated compartment and consequent decrease in co-localization with the Golgi marker GRASP. Together, these results suggest a role for the AP-1 complex in rhoptry protein trafficking in P. falciparum. (C) 2015 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available