Subtilisin-like protease 1

UniProtKB accession:  Q8I0V0

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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 (PubMed:18083098, PubMed:19214190, PubMed:21220481, PubMed:29459732). Mediates the proteolytic maturation of serine proteases SERA4, SERA5 and SERA6 just prior to merozoite egress (PubMed:18083098, PubMed:19214190, PubMed:29459732). 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 (PubMed:19214190, PubMed:29459732). Prior to merozoite egress, cleaves MSRP2 converting it to MSRP2 p25 form, and RAP1 converting it to RAP1 p67 form (PubMed:21220481).