| SpCrossreactivity | Thioredoxin is a ubiquitous protein, having two redox-active half-cysteine residues, that functions as a general disulfide reductant. It Inhibits apoptosis in Jurkat T cells and human PBL. Thioredoxin is a single polypeptide chain of ~11.7 kDa. It is purified from E. coli (>95% by HPLC). Biological activity: =0.8 insulin reduction units/mg/minute. Insulin reduction units are calculated by measuring the change in absorbance at 650 nm with 330 mM DTT as the reductant at 23°C, pH 7. Purity: =90% by HPLC |