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Red Blood Cell Invasion by the Malaria Parasite Is Coordinated by the PfAP2-I Transcription Factor

Author(s): Santos, Joana Mendonca; Josling, Gabrielle; Ross, Philipp; Joshi, Preeti; Orchard, Lindsey; et al

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Abstract: Obligate intracellular parasites must efficiently invade host cells in order to mature and be transmitted. For the malaria parasite Plasmodium falciparum, invasion of host red blood cells (RBCs) is essential. Here we describe a parasite-specific transcription factor PfAP2-I, belonging to the Apicomplexan AP2 (ApiAP2) family, that is responsible for regulating the expression of genes involved in RBC invasion. Our genome-wide analysis by ChIP-seq shows that PfAP2-I interacts with a specific DNA motif in the promoters of target genes. Although PfAP2-I contains three AP2 DNA-binding domains, only one is required for binding of the target genes during blood stage development. Furthermore, we find that PfAP2-I associates with several chromatin-associated proteins, including the Plasmodium bromodomain protein PfBDP1, and that complex formation is associated with transcriptional regulation. As a key regulator of red blood cell invasion, PfAP2-I represents a potential new antimalarial therapeutic target.
Publication Date: 14-Jun-2017
Citation: Santos, Joana Mendonca, Josling, Gabrielle, Ross, Philipp, Joshi, Preeti, Orchard, Lindsey, Campbell, Tracey, Schieler, Ariel, Cristea, Ileana M, Llinás, Manuel. (2017). Red Blood Cell Invasion by the Malaria Parasite Is Coordinated by the PfAP2-I Transcription Factor. Cell Host & Microbe, 21 (6), 731 - 741.e10. doi:10.1016/j.chom.2017.05.006
DOI: doi:10.1016/j.chom.2017.05.006
ISSN: 1931-3128
Pages: 1 - 35
Type of Material: Journal Article
Journal/Proceeding Title: Cell Host & Microbe
Version: Author's manuscript

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