Characterization of the amino acids from Neisseria meningitidis MsrA involved in the chemical catalysis of the methionine sulfoxide reduction step.

Abstract excerpt

Methionine sulfoxide reductases (Msrs) are ubiquitous enzymes that reduce protein-bound methionine sulfoxide back to Met in the presence of thioredoxin. In vivo, the role of the Msrs is described as essential in protecting cells against oxidative damages and as playing a role in infection of cells by pathogenic bacteria. There exist two structurally unrelated classes of Msrs, called MsrA and MsrB, specific for...

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