Heat-resistant thioredoxin and related enzymes

摘要

The inventors isolated from hyperthermophilic archaebacteria Aeropyrum pernix a heat resistant thioredoxin, thioredoxin reductase and thioredoxin peroxidase having at least 50% residual activity after heat treatment at 100° C. for 0.5 hour, and sequenced the amino acid and base sequences. The inventors also isolated from hyperthermophilic archaebacteria Pyrococcus horikoshii a heat resistant thioredoxin, thioredoxin reductase, and thioredoxin peroxidase showing substantially no decline in activity when heat treated at 100° C. for 0.5 hour, and sequenced the amino acid and base sequences.