Purity:Purified by Protein A affinity chromatography.
Form:Supplied as a liquid in PBS, pH 7.2. No preservative added. No stabilizing proteins added. Labeled with horseradish peroxidase (HRP).
Specificity:Human PAPP-A antigen purified from placental blood (heterotetrameric complex, consisting of two PAPP-A subunits and two pro-MBP subunits). Recognizes PAPP-A subunit in the heterotetrameric complex in Western Blot.