Purity ~95% (Highly Purified). An acute-phase plasma protein found at 45mg/100ml. ACT functions as a specific inhibitor of chymotrypsin-like serine proteases. Clinically, it is elevated in inflammatory conditions, some malignancies, Crohn's disease, ulcerative colitis, and burn injuries. The PSA-ACT complex level is considered a biomarker for prostate cancer. Source: Human plasma Molecular Weight: ~64kD Applications: Suitable for use in ELISA.