PF3D7_0918000 glideosome-associated protein 50 secreted acid phosphatase

PfPhIP deficient parasites show defects in segmentation of daughter cells: PfPhIP-HA-glmS parasites maintained with and without GlcN were E64-treated (10 μM) and probed with the anti-HA antibody (green) and counterstained with DAPI. (A) Apparent knockdown of PhIP expression leads to formation of agglomerates of unsegmented daughter nuclei. (B) Anti-GAP50 antibody (IMC marker) (red) showed defects in IMC formation in agglomerates. Merozoite plasma membrane and micronemes were stained with antibodies against P. falciparum (C) merozoite surface protein 1 (PfMSP1) (red) and (D) PfAMA1 (red), respectively, in E64-treated schizonts cultivated with and without GlcN. PfMSP1 was visible in schizonts but forms relatively larger rings that surround multiple nuclei in the agglomerates. PfAMA1 showed loss of signal in agglomerates. Scale bar = 5 μm. (E) 3D reconstruction of the PfPhIP-HA-glmS schizonts with and without GlcN is presented using Imaris 7.6.1. Arrowheads indicate agglomerates of unsegmented daughter nuclei.

Saini E, Sheokand PK, Sharma V, Agrawal P, Kaur I, Singh S, Mohmmed A, Malhotra P. Plasmodium falciparum PhIL1-associated complex plays an essential role in merozoite reorientation and invasion of host erythrocytes. PLoS Pathog. 2021 17(7):e1009750.

Other associated proteins

PFID Formal Annotation
PF3D7_0930300 merozoite surface protein 1
PF3D7_1133400 apical membrane antigen 1
PF3D7_1355600 phil1 interacting protein PhIP