MSRB2His protein.MSRB2 is His-tagged at the N-terminal.MSRB2 (Methionine sulfoxide reductase, EC1.8.4.6)is ubiquitous and highly conserved. It carries out theenzymatic reduction of methionine-R-sulfoxide (MetRO) tomethionine in thioredoxin-dependent manner. Human andanimal studies have shown the highest levels of expressionin skeletal muscle and heart. Its proposed function isthe repair of oxidative damage to proteins to restorebiological activity. The protein is located in mitochondria. Purity >90% by SDS-PAGE