(Plasmodium Cysteine Repeat Modular Protein 4) is a specialized protein found in the Plasmodium genus, the parasites responsible for malaria. It belongs to a family of four conserved proteins (PCRMP1–4) that are critical for the parasite’s ability to transition between its mosquito vector and mammalian hosts. Biological Role and Function
: Note that PCRMP4 is distinct from pCRMP4 (phosphorylated Collapsin Response Mediator Protein 4), a human protein involved in axonal growth, spinal cord injury response, and certain cancers like pancreatic cancer. pcrmp4
: Parasites lacking PCRMP4 fail to invade the mosquito's salivary glands, preventing them from being transmitted to a host during a mosquito bite. (Plasmodium Cysteine Repeat Modular Protein 4) is a
: While PCRMP4-deficient sporozoites can still move and invade liver cells (hepatocytes) if manually extracted from oocysts, they are unable to undergo further development or proliferation within the liver. Key Characteristics : Parasites lacking PCRMP4 fail to invade the
: The protein contains specific motifs, including Cysteine Repeat Modular (CRM) domains and EGF-like domains, which are often involved in protein-protein or host-parasite interactions.