PAPP-A

Pregnancy Associated Plasma Protein A (PAPP-A) is a placental glycoprotein widely used as a key biomarker in first-trimester prenatal screening and risk assessment of chromosomal abnormalities. YBL's PAPP-A is isolated from human placenta and supplied in lyophilized form with high purity and validated biological activity. The product undergoes stringent viral marker testing, bioburden assessment, and quality control procedures, making it suitable for immunoassays, calibrators, controls, diagnostic assay development, and IVD manufacturing applications.