C. Withers-Martinez

Publications27
h-index18
Citations1,859
Highly Influential Citations114
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Subcellular Discharge of a Serine Protease Mediates Release of Invasive Malaria Parasites from Host Erythrocytes
The most virulent form of malaria is caused by waves of replication of blood stages of the protozoan pathogen Plasmodium falciparum. The parasite divides within an intraerythrocytic parasitophorous… Expand
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Molecular Identification of a Malaria Merozoite Surface Sheddase
Proteolytic shedding of surface proteins during invasion by apicomplexan parasites is a widespread phenomenon, thought to represent a mechanism by which the parasites disengage adhesin-receptor… Expand
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Intramembrane proteolysis mediates shedding of a key adhesin during erythrocyte invasion by the malaria parasite
Apicomplexan pathogens are obligate intracellular parasites. To enter cells, they must bind with high affinity to host cell receptors and then uncouple these interactions to complete invasion.… Expand
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High-Level Expression of the Malaria Blood-Stage Vaccine Candidate Plasmodium falciparum Apical Membrane Antigen 1 and Induction of Antibodies That Inhibit Erythrocyte Invasion
ABSTRACT Apical membrane antigen 1 (AMA-1) is a highly promising malaria blood-stage vaccine candidate that has induced protection in rodent and nonhuman primate models of malaria. Authentic… Expand
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A multifunctional serine protease primes the malaria parasite for red blood cell invasion
The malaria parasite Plasmodium falciparum replicates within an intraerythrocytic parasitophorous vacuole (PV). Rupture of the host cell allows release (egress) of daughter merozoites, which invade… Expand
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Processing of Plasmodium falciparum Merozoite Surface Protein MSP1 Activates a Spectrin-Binding Function Enabling Parasite Egress from RBCs
Summary The malaria parasite Plasmodium falciparum replicates within erythrocytes, producing progeny merozoites that are released from infected cells via a poorly understood process called egress.… Expand
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PfSUB-2: a second subtilisin-like protein in Plasmodium falciparum merozoites.
Erythrocyte invasion by the malaria merozoite requires the activity of merozoite proteases. We have previously identified a Plasmodium falciparum protein belonging to the superfamily of… Expand
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Subtilisin‐like proteases of the malaria parasite
Proteases play critical roles in the life cycle of the malaria parasite, Plasmodium spp. Within the asexual erythrocytic cycle, responsible for the clinical manifestations of malaria, substantial… Expand
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Global Identification of Multiple Substrates for Plasmodium falciparum SUB1, an Essential Malarial Processing Protease
ABSTRACT The protozoan pathogen responsible for the most severe form of human malaria, Plasmodium falciparum, replicates asexually in erythrocytes within a membrane-bound parasitophorous vacuole… Expand
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Fine Mapping of an Epitope Recognized by an Invasion-inhibitory Monoclonal Antibody on the Malaria Vaccine Candidate Apical Membrane Antigen 1*
Antibodies that inhibit red blood cell invasion by the Plasmodium merozoite block the erythrocytic cycle responsible for clinical malaria. The invasion-inhibitory monoclonal antibody (mAb) 4G2… Expand
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