Sulfiredoxin
Definition:
EC Tree > 1 Oxidoreductases > 1.8 Acting on a sulfur group of donors > 1.8.98 With other, known, physiological acceptors > 1.8.98.2 sulfiredoxin
Sulfiredoxin is an ATP-dependent enzyme that reactivates over-oxidized peroxiredoxins, reducing their catalytic cysteine sulfinic acid back to sulfenic acid with the help of thiols; it uses ATP to form a sulfinic acid phosphoryl ester intermediate and thereby rescues peroxiredoxins (EC 1.11.1.24–1.11.1.29) from irreversible inactivation by reactive oxygen species.
Sulfiredoxin is an ATP-dependent enzyme that reactivates over-oxidized peroxiredoxins, reducing their catalytic cysteine sulfinic acid back to sulfenic acid with the help of thiols; it uses ATP to form a sulfinic acid phosphoryl ester intermediate and thereby rescues peroxiredoxins (EC 1.11.1.24–1.11.1.29) from irreversible inactivation by reactive oxygen species.
References:
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