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| RH5 | Reticulocyte-binding protein homolog 5; Essential for the invasion of host erythrocytes by blood stage merozoites. By binding P113 at the surface of the merozoite and human BSG/basigin on the erythrocyte membrane, leads to the establishment of a tight junction between the merozoite and host erythrocyte membranes. In addition, the interaction with BSG results in BSG dimerization which triggers an increase in intracellular Ca(2+) in the erythrocyte. This essential step leads to a rearrangement of the erythrocyte cytoskeleton required for the merozoite invasion. (526 aa) | ||||
| RIPR | Rh5-interacting protein; Essential for the invasion of host erythrocytes by blood stage merozoites. As part of the PfRH5 adhesion complex, facilitates the interaction of RH5 and human BSG required for the Ca(2+) release into the erythrocyte. (1086 aa) | ||||
| CyRPA | Cysteine-rich protective antigen; Essential for the invasion of host erythrocytes by blood stage merozoites. Required for the assembly of the PfRH5 adhesion complex (or invasion complex) composed of CyRPA, RH5 and RIPR at the interface between the merozoite and the host erythrocyte membranes. This facilitates the binding of RH5 to host receptor BSG/basigin, which leads to the establishment of a tight junction between the merozoite and host erythrocyte membranes and allows Ca(2+) release into the erythrocyte. (362 aa) | ||||