– Direct host-parasite interaction occurs at the cytoplasmic faces of the parasitophorous vacuole membrane (PVM) and the host endoplasmic reticulum (ER) membrane via GRA3 and host CAMLG association. Direct insertion of GRA3 ER retrieval motif into the host ER membrane contributes to the host ER recruitment to the PVM. GRA3 Protein, Toxoplasma gondii, Recombinant (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 10.8 kDa and the accession number is B6KEU8.