MSRB2 (Methionine Sulfoxide Reductase B2): MSRB2 is an enzyme that helps repair oxidized methionine residues in proteins, protecting cells from oxidative stress and preserving protein function. It is a crucial part of the body’s antioxidant defense system, enhancing cellular resilience against environmental challenges. Research on MSRB2 investigates its potential connections to aging, neurodegenerative diseases, and other conditions linked to oxidative damage.