Anti-Pregnancy Associated Plasma Protein A (PAPP-A), clone 1.B.131

PAPP A (PAPP-A, Insulin-like growth factor binding protein-4 protease, PAPP-A-proMBP complex) was originally isolated from pregnancy serum as heterotetrameric protein complex with molecular weight approximately 500kD, consisting of two PAPP A subunits disulfide-linked with two subunits of the proform of eosinophil major basic protein (proMBP). In such a complex proMBP functions as an inhibitor of PAPP A proteinase activity. PAPP A is widely used as a marker of some pathologies during pregnancy. Low maternal serum levels of PAPP-A in first trimester biochemical screening is used as a marker of Down's syndrome (Trisomy 21). Applications: Suitable for use in ELISA, Western Blot and Immunoprecipitation. Other applications have not been tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Matched Pairs: Capture: Detection:, P6000-82 P6000-81, P6000-81 P6000-82, P6000-80A, Hybridoma: Sp2/0 myeloma cells with spleen cells from Balb/c mice. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.