Troponin C, Cardiac Antigen ≥95%

A calcium-binding subunit of the cardiac troponin complex, this native antigen from Antibodies.com is supplied at ≥95% purity in liquid form for use as an immunogen, immunoassay coating reagent, and reference standard in cardiac biomarker research.

The 100 µg protein binds Ca²⁺ at regulatory EF-hand sites to control actomyosin ATPase activity, supporting studies of excitation-contraction coupling, myocardial injury, and troponin isoform expression. Researchers use it for antibody production in rabbits, goats, or mice, and as a plate-coating reagent in ELISA and western blot workflows. The native purification preserves conformational epitopes recognized by conformation-dependent antibodies, distinguishing it from denatured or recombinant preparations.

Each vial ships frozen on dry ice; aliquot upon arrival and store at -80 °C, limiting freeze-thaw cycles to maintain antigenicity. The antigen is also compatible with immunohistochemistry on cardiac tissue sections, with electrophoresis-based characterization of the troponin ternary complex, and with calibration of troponin assays used in acute coronary syndrome research.