4gwb is a 1 chain structure with sequence from Ensifer meliloti. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[MSRA3_RHIME] Has an important function as a repair enzyme for proteins that have been inactivated by oxidation. Catalyzes the reversible oxidation-reduction of methionine sulfoxide in proteins to methionine (By similarity).
