Subtilisin-like protease 1

UniProtKB accession:  O61142

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UniProtKB description:  Serine protease which plays an essential role in merozoite invasion of and egress from host erythrocytes by processing and activating various merozoite surface and parasitophorous vacuole proteins. Mediates the proteolytic maturation of serine proteases SERA4, SERA5 and SERA6 just prior to merozoite egress. Prior to merozoite egress, cleaves merozoite surface proteins MSP1, MSP6 and MSP7, which form the MSP1/6/7 complex, and thereby may prime the parasite cell surface for invasion of fresh erythrocytes. Prior to merozoite egress, cleaves MSRP2 converting it to MSRP2 p25 form, and RAP1 converting it to RAP1 p67 form.